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Groups > linux.kernel > #1378203 > unrolled thread
| Started by | mchristi@redhat.com |
|---|---|
| First post | 2016-04-13 21:40 +0200 |
| Last post | 2016-04-14 08:10 +0200 |
| Articles | 18 on this page of 38 — 2 participants |
Back to article view | Back to linux.kernel
[PATCH 00/42] v5: separate operations from flags in the bio/request structs mchristi@redhat.com - 2016-04-13 21:40 +0200
[PATCH 23/42] md/raid: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 21:40 +0200
[PATCH 41/42] block: use QUEUE flags instead of flush_flags to test for flush support mchristi@redhat.com - 2016-04-13 21:40 +0200
[PATCH 42/42] block, drivers, fs: rename REQ_FLUSH to REQ_PREFLUSH mchristi@redhat.com - 2016-04-13 21:40 +0200
[PATCH 26/42] block: copy bio op to request op mchristi@redhat.com - 2016-04-13 21:40 +0200
[PATCH 40/42] block, drivers: add REQ_OP_FLUSH operation mchristi@redhat.com - 2016-04-13 21:40 +0200
[PATCH 36/42] ide cd: do not set REQ_WRITE on requests. mchristi@redhat.com - 2016-04-13 21:40 +0200
[PATCH 33/42] block: convert rq_data_dir helper to use REQ_OPs mchristi@redhat.com - 2016-04-13 21:50 +0200
[PATCH 32/42] block: convert is_sync helpers to use REQ_OPs. mchristi@redhat.com - 2016-04-13 21:50 +0200
[PATCH 25/42] target: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 21:50 +0200
[PATCH 30/42] blkg_rwstat: separate op from flags mchristi@redhat.com - 2016-04-13 21:50 +0200
[PATCH 28/42] block: prepare mq request creation to use REQ_OPs mchristi@redhat.com - 2016-04-13 21:50 +0200
[PATCH 34/42] drivers: set request op to REQ_OP mchristi@redhat.com - 2016-04-13 21:50 +0200
[PATCH 35/42] blktrace: get op from req->op/bio->bi_op mchristi@redhat.com - 2016-04-13 21:50 +0200
[PATCH 38/42] block, fs: remove old REQ definitions. mchristi@redhat.com - 2016-04-13 21:50 +0200
[PATCH 31/42] block: convert merge/insert code to check for REQ_OPs. mchristi@redhat.com - 2016-04-13 21:50 +0200
[PATCH 27/42] block: prepare request creation/destruction code to use REQ_OPs mchristi@redhat.com - 2016-04-13 21:50 +0200
[PATCH 37/42] block, fs, drivers: do use bi_rw/cmd_flags for REQ_OPs. mchristi@redhat.com - 2016-04-13 21:50 +0200
[PATCH 29/42] block: prepare elevator to use REQ_OPs. mchristi@redhat.com - 2016-04-13 21:50 +0200
[PATCH 12/42] gfs2: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 14/42] hfsplus: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 16/42] nilfs: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 15/42] mpage: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 22/42] drbd: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 07/42] btrfs: have submit_one_bio users setup bio bi_op mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 18/42] pm: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 20/42] dm: pass dm stats data dir instead of bi_rw mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 10/42] btrfs: use bio fields for op and flags mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 11/42] f2fs: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 17/42] ocfs2: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 09/42] btrfs: update __btrfs_map_block for bi_op transition mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 24/42] xen: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 19/42] dm: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 22:00 +0200
[PATCH 06/42] direct-io: set bi_op to REQ_OP mchristi@redhat.com - 2016-04-13 22:10 +0200
[PATCH 02/42] block: add REQ_OP definitions and bi_op/op fields mchristi@redhat.com - 2016-04-13 22:10 +0200
[PATCH 05/42] fs: have ll_rw_block users pass in op and flags separately mchristi@redhat.com - 2016-04-13 22:10 +0200
[PATCH 04/42] fs: have submit_bh users pass in op and flags separately mchristi@redhat.com - 2016-04-13 22:10 +0200
Re: [PATCH 00/42] v5: separate operations from flags in the bio/request structs Hannes Reinecke <hare@suse.de> - 2016-04-14 08:10 +0200
Page 2 of 2 — ← Prev page 1 [2]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 14/42] hfsplus: set bi_op to REQ_OP |
| Message-ID | <rnz7c-6su-9@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This patch has hfsplus use bio->bi_op for REQ_OPs and rq_flag_bits
to bio->bi_rw.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/hfsplus/hfsplus_fs.h | 2 +-
fs/hfsplus/part_tbl.c | 5 +++--
fs/hfsplus/super.c | 6 ++++--
fs/hfsplus/wrapper.c | 15 +++++++++------
4 files changed, 17 insertions(+), 11 deletions(-)
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index f91a1fa..80154aa 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -525,7 +525,7 @@ int hfsplus_compare_dentry(const struct dentry *parent,
/* wrapper.c */
int hfsplus_submit_bio(struct super_block *sb, sector_t sector, void *buf,
- void **data, int rw);
+ void **data, int op, int op_flags);
int hfsplus_read_wrapper(struct super_block *sb);
/* time macros */
diff --git a/fs/hfsplus/part_tbl.c b/fs/hfsplus/part_tbl.c
index eb355d8..63164eb 100644
--- a/fs/hfsplus/part_tbl.c
+++ b/fs/hfsplus/part_tbl.c
@@ -112,7 +112,8 @@ static int hfs_parse_new_pmap(struct super_block *sb, void *buf,
if ((u8 *)pm - (u8 *)buf >= buf_size) {
res = hfsplus_submit_bio(sb,
*part_start + HFS_PMAP_BLK + i,
- buf, (void **)&pm, READ);
+ buf, (void **)&pm, REQ_OP_READ,
+ 0);
if (res)
return res;
}
@@ -136,7 +137,7 @@ int hfs_part_find(struct super_block *sb,
return -ENOMEM;
res = hfsplus_submit_bio(sb, *part_start + HFS_PMAP_BLK,
- buf, &data, READ);
+ buf, &data, REQ_OP_READ, 0);
if (res)
goto out;
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index c359113..d3646c2 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -219,7 +219,8 @@ static int hfsplus_sync_fs(struct super_block *sb, int wait)
error2 = hfsplus_submit_bio(sb,
sbi->part_start + HFSPLUS_VOLHEAD_SECTOR,
- sbi->s_vhdr_buf, NULL, WRITE_SYNC);
+ sbi->s_vhdr_buf, NULL, REQ_OP_WRITE,
+ WRITE_SYNC);
if (!error)
error = error2;
if (!write_backup)
@@ -227,7 +228,8 @@ static int hfsplus_sync_fs(struct super_block *sb, int wait)
error2 = hfsplus_submit_bio(sb,
sbi->part_start + sbi->sect_count - 2,
- sbi->s_backup_vhdr_buf, NULL, WRITE_SYNC);
+ sbi->s_backup_vhdr_buf, NULL, REQ_OP_WRITE,
+ WRITE_SYNC);
if (!error)
error2 = error;
out:
diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
index d026bb3..c5c916d 100644
--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -30,7 +30,8 @@ struct hfsplus_wd {
* @sector: block to read or write, for blocks of HFSPLUS_SECTOR_SIZE bytes
* @buf: buffer for I/O
* @data: output pointer for location of requested data
- * @rw: direction of I/O
+ * @op: direction of I/O
+ * @op_flags: request op flags
*
* The unit of I/O is hfsplus_min_io_size(sb), which may be bigger than
* HFSPLUS_SECTOR_SIZE, and @buf must be sized accordingly. On reads
@@ -44,7 +45,7 @@ struct hfsplus_wd {
* will work correctly.
*/
int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
- void *buf, void **data, int rw)
+ void *buf, void **data, int op, int op_flags)
{
struct bio *bio;
int ret = 0;
@@ -65,9 +66,10 @@ int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
bio = bio_alloc(GFP_NOIO, 1);
bio->bi_iter.bi_sector = sector;
bio->bi_bdev = sb->s_bdev;
- bio->bi_rw = rw;
+ bio->bi_op = op;
+ bio->bi_rw = op_flags;
- if (!(rw & WRITE) && data)
+ if (op != WRITE && data)
*data = (u8 *)buf + offset;
while (io_size > 0) {
@@ -182,7 +184,7 @@ int hfsplus_read_wrapper(struct super_block *sb)
reread:
error = hfsplus_submit_bio(sb, part_start + HFSPLUS_VOLHEAD_SECTOR,
sbi->s_vhdr_buf, (void **)&sbi->s_vhdr,
- READ);
+ REQ_OP_READ, 0);
if (error)
goto out_free_backup_vhdr;
@@ -214,7 +216,8 @@ reread:
error = hfsplus_submit_bio(sb, part_start + part_size - 2,
sbi->s_backup_vhdr_buf,
- (void **)&sbi->s_backup_vhdr, READ);
+ (void **)&sbi->s_backup_vhdr, REQ_OP_READ,
+ 0);
if (error)
goto out_free_backup_vhdr;
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 16/42] nilfs: set bi_op to REQ_OP |
| Message-ID | <rnz7c-6su-11@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This patch has nilfs use bio->bi_op for REQ_OPs and rq_flag_bits
to bio->bi_rw.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/nilfs2/segbuf.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index 7666f1d..7b13e14 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -350,7 +350,8 @@ static void nilfs_end_bio_write(struct bio *bio)
}
static int nilfs_segbuf_submit_bio(struct nilfs_segment_buffer *segbuf,
- struct nilfs_write_info *wi, int mode)
+ struct nilfs_write_info *wi, int mode,
+ int mode_flags)
{
struct bio *bio = wi->bio;
int err;
@@ -368,7 +369,8 @@ static int nilfs_segbuf_submit_bio(struct nilfs_segment_buffer *segbuf,
bio->bi_end_io = nilfs_end_bio_write;
bio->bi_private = segbuf;
- bio->bi_rw = mode;
+ bio->bi_op = mode;
+ bio->bi_rw = mode_flags;
submit_bio(bio);
segbuf->sb_nbio++;
@@ -442,7 +444,7 @@ static int nilfs_segbuf_submit_bh(struct nilfs_segment_buffer *segbuf,
return 0;
}
/* bio is FULL */
- err = nilfs_segbuf_submit_bio(segbuf, wi, mode);
+ err = nilfs_segbuf_submit_bio(segbuf, wi, mode, 0);
/* never submit current bh */
if (likely(!err))
goto repeat;
@@ -466,19 +468,19 @@ static int nilfs_segbuf_write(struct nilfs_segment_buffer *segbuf,
{
struct nilfs_write_info wi;
struct buffer_head *bh;
- int res = 0, rw = WRITE;
+ int res = 0;
wi.nilfs = nilfs;
nilfs_segbuf_prepare_write(segbuf, &wi);
list_for_each_entry(bh, &segbuf->sb_segsum_buffers, b_assoc_buffers) {
- res = nilfs_segbuf_submit_bh(segbuf, &wi, bh, rw);
+ res = nilfs_segbuf_submit_bh(segbuf, &wi, bh, REQ_OP_WRITE);
if (unlikely(res))
goto failed_bio;
}
list_for_each_entry(bh, &segbuf->sb_payload_buffers, b_assoc_buffers) {
- res = nilfs_segbuf_submit_bh(segbuf, &wi, bh, rw);
+ res = nilfs_segbuf_submit_bh(segbuf, &wi, bh, REQ_OP_WRITE);
if (unlikely(res))
goto failed_bio;
}
@@ -488,8 +490,8 @@ static int nilfs_segbuf_write(struct nilfs_segment_buffer *segbuf,
* Last BIO is always sent through the following
* submission.
*/
- rw |= REQ_SYNC;
- res = nilfs_segbuf_submit_bio(segbuf, &wi, rw);
+ res = nilfs_segbuf_submit_bio(segbuf, &wi, REQ_OP_WRITE,
+ REQ_SYNC);
}
failed_bio:
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 15/42] mpage: set bi_op to REQ_OP |
| Message-ID | <rnz7c-6su-15@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This patch has mpage.c use bio->bi_op for REQ_OPs and rq_flag_bits
to bio->bi_rw.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/mpage.c | 41 +++++++++++++++++++++--------------------
1 file changed, 21 insertions(+), 20 deletions(-)
diff --git a/fs/mpage.c b/fs/mpage.c
index 2c251ec..89f58f1 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -56,11 +56,12 @@ static void mpage_end_io(struct bio *bio)
bio_put(bio);
}
-static struct bio *mpage_bio_submit(int rw, struct bio *bio)
+static struct bio *mpage_bio_submit(int op, int op_flags, struct bio *bio)
{
bio->bi_end_io = mpage_end_io;
- bio->bi_rw = rw;
- guard_bio_eod(rw, bio);
+ bio->bi_op = op;
+ bio->bi_rw = op_flags;
+ guard_bio_eod(op, bio);
submit_bio(bio);
return NULL;
}
@@ -270,7 +271,7 @@ do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,
* This page will go to BIO. Do we need to send this BIO off first?
*/
if (bio && (*last_block_in_bio != blocks[0] - 1))
- bio = mpage_bio_submit(READ, bio);
+ bio = mpage_bio_submit(REQ_OP_READ, 0, bio);
alloc_new:
if (bio == NULL) {
@@ -287,7 +288,7 @@ alloc_new:
length = first_hole << blkbits;
if (bio_add_page(bio, page, length, 0) < length) {
- bio = mpage_bio_submit(READ, bio);
+ bio = mpage_bio_submit(REQ_OP_READ, 0, bio);
goto alloc_new;
}
@@ -295,7 +296,7 @@ alloc_new:
nblocks = map_bh->b_size >> blkbits;
if ((buffer_boundary(map_bh) && relative_block == nblocks) ||
(first_hole != blocks_per_page))
- bio = mpage_bio_submit(READ, bio);
+ bio = mpage_bio_submit(REQ_OP_READ, 0, bio);
else
*last_block_in_bio = blocks[blocks_per_page - 1];
out:
@@ -303,7 +304,7 @@ out:
confused:
if (bio)
- bio = mpage_bio_submit(READ, bio);
+ bio = mpage_bio_submit(REQ_OP_READ, 0, bio);
if (!PageUptodate(page))
block_read_full_page(page, get_block);
else
@@ -385,7 +386,7 @@ mpage_readpages(struct address_space *mapping, struct list_head *pages,
}
BUG_ON(!list_empty(pages));
if (bio)
- mpage_bio_submit(READ, bio);
+ mpage_bio_submit(REQ_OP_READ, 0, bio);
return 0;
}
EXPORT_SYMBOL(mpage_readpages);
@@ -406,7 +407,7 @@ int mpage_readpage(struct page *page, get_block_t get_block)
bio = do_mpage_readpage(bio, page, 1, &last_block_in_bio,
&map_bh, &first_logical_block, get_block, gfp);
if (bio)
- mpage_bio_submit(READ, bio);
+ mpage_bio_submit(REQ_OP_READ, 0, bio);
return 0;
}
EXPORT_SYMBOL(mpage_readpage);
@@ -487,7 +488,7 @@ static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
struct buffer_head map_bh;
loff_t i_size = i_size_read(inode);
int ret = 0;
- int wr = (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : WRITE);
+ int op_flags = (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : 0);
if (page_has_buffers(page)) {
struct buffer_head *head = page_buffers(page);
@@ -596,7 +597,7 @@ page_is_mapped:
* This page will go to BIO. Do we need to send this BIO off first?
*/
if (bio && mpd->last_block_in_bio != blocks[0] - 1)
- bio = mpage_bio_submit(wr, bio);
+ bio = mpage_bio_submit(REQ_OP_WRITE, op_flags, bio);
alloc_new:
if (bio == NULL) {
@@ -623,7 +624,7 @@ alloc_new:
wbc_account_io(wbc, page, PAGE_SIZE);
length = first_unmapped << blkbits;
if (bio_add_page(bio, page, length, 0) < length) {
- bio = mpage_bio_submit(wr, bio);
+ bio = mpage_bio_submit(REQ_OP_WRITE, op_flags, bio);
goto alloc_new;
}
@@ -633,7 +634,7 @@ alloc_new:
set_page_writeback(page);
unlock_page(page);
if (boundary || (first_unmapped != blocks_per_page)) {
- bio = mpage_bio_submit(wr, bio);
+ bio = mpage_bio_submit(REQ_OP_WRITE, op_flags, bio);
if (boundary_block) {
write_boundary_block(boundary_bdev,
boundary_block, 1 << blkbits);
@@ -645,7 +646,7 @@ alloc_new:
confused:
if (bio)
- bio = mpage_bio_submit(wr, bio);
+ bio = mpage_bio_submit(REQ_OP_WRITE, op_flags, bio);
if (mpd->use_writepage) {
ret = mapping->a_ops->writepage(page, wbc);
@@ -702,9 +703,9 @@ mpage_writepages(struct address_space *mapping,
ret = write_cache_pages(mapping, wbc, __mpage_writepage, &mpd);
if (mpd.bio) {
- int wr = (wbc->sync_mode == WB_SYNC_ALL ?
- WRITE_SYNC : WRITE);
- mpage_bio_submit(wr, mpd.bio);
+ int op_flags = (wbc->sync_mode == WB_SYNC_ALL ?
+ WRITE_SYNC : 0);
+ mpage_bio_submit(REQ_OP_WRITE, op_flags, mpd.bio);
}
}
blk_finish_plug(&plug);
@@ -723,9 +724,9 @@ int mpage_writepage(struct page *page, get_block_t get_block,
};
int ret = __mpage_writepage(page, wbc, &mpd);
if (mpd.bio) {
- int wr = (wbc->sync_mode == WB_SYNC_ALL ?
- WRITE_SYNC : WRITE);
- mpage_bio_submit(wr, mpd.bio);
+ int op_flags = (wbc->sync_mode == WB_SYNC_ALL ?
+ WRITE_SYNC : 0);
+ mpage_bio_submit(REQ_OP_WRITE, op_flags, mpd.bio);
}
return ret;
}
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 22/42] drbd: set bi_op to REQ_OP |
| Message-ID | <rnz7c-6su-17@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This patch has drbd use bio->bi_op for REQ_OPs and rq_flag_bits
to bio->bi_rw.
Lars and Philip, I might have split this patch up a little weird.
The block layer has compat so you can set either bi_rw or bi_op.
This patch handles setting up the bio in drbd. I then converted
all the block device drivers and in
0037-block-fs-drivers-do-not-test-bi_rw-for-REQ_OPs.patch I modified
the bi_rw checks so they use bi_op.
This patch is compile tested only.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
drivers/block/drbd/drbd_actlog.c | 29 ++++++++++++++++-------------
drivers/block/drbd/drbd_bitmap.c | 6 +++---
drivers/block/drbd/drbd_int.h | 4 ++--
drivers/block/drbd/drbd_main.c | 5 +++--
drivers/block/drbd/drbd_receiver.c | 37 +++++++++++++++++++++++++------------
drivers/block/drbd/drbd_worker.c | 3 ++-
6 files changed, 51 insertions(+), 33 deletions(-)
diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c
index 6069e15..2fa8534 100644
--- a/drivers/block/drbd/drbd_actlog.c
+++ b/drivers/block/drbd/drbd_actlog.c
@@ -137,19 +137,19 @@ void wait_until_done_or_force_detached(struct drbd_device *device, struct drbd_b
static int _drbd_md_sync_page_io(struct drbd_device *device,
struct drbd_backing_dev *bdev,
- sector_t sector, int rw)
+ sector_t sector, int op)
{
struct bio *bio;
/* we do all our meta data IO in aligned 4k blocks. */
const int size = 4096;
- int err;
+ int err, op_flags = 0;
device->md_io.done = 0;
device->md_io.error = -ENODEV;
- if ((rw & WRITE) && !test_bit(MD_NO_FUA, &device->flags))
- rw |= REQ_FUA | REQ_FLUSH;
- rw |= REQ_SYNC | REQ_NOIDLE;
+ if ((op == REQ_OP_WRITE) && !test_bit(MD_NO_FUA, &device->flags))
+ op_flags |= REQ_FUA | REQ_FLUSH;
+ op_flags |= REQ_SYNC | REQ_NOIDLE;
bio = bio_alloc_drbd(GFP_NOIO);
bio->bi_bdev = bdev->md_bdev;
@@ -159,9 +159,10 @@ static int _drbd_md_sync_page_io(struct drbd_device *device,
goto out;
bio->bi_private = device;
bio->bi_end_io = drbd_md_endio;
- bio->bi_rw = rw;
+ bio->bi_op = op;
+ bio->bi_rw = op_flags;
- if (!(rw & WRITE) && device->state.disk == D_DISKLESS && device->ldev == NULL)
+ if (op != REQ_OP_WRITE && device->state.disk == D_DISKLESS && device->ldev == NULL)
/* special case, drbd_md_read() during drbd_adm_attach(): no get_ldev */
;
else if (!get_ldev_if_state(device, D_ATTACHING)) {
@@ -174,7 +175,7 @@ static int _drbd_md_sync_page_io(struct drbd_device *device,
bio_get(bio); /* one bio_put() is in the completion handler */
atomic_inc(&device->md_io.in_use); /* drbd_md_put_buffer() is in the completion handler */
device->md_io.submit_jif = jiffies;
- if (drbd_insert_fault(device, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD))
+ if (drbd_insert_fault(device, (op == REQ_OP_WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD))
bio_io_error(bio);
else
submit_bio(bio);
@@ -188,7 +189,7 @@ static int _drbd_md_sync_page_io(struct drbd_device *device,
}
int drbd_md_sync_page_io(struct drbd_device *device, struct drbd_backing_dev *bdev,
- sector_t sector, int rw)
+ sector_t sector, int op)
{
int err;
D_ASSERT(device, atomic_read(&device->md_io.in_use) == 1);
@@ -197,19 +198,21 @@ int drbd_md_sync_page_io(struct drbd_device *device, struct drbd_backing_dev *bd
dynamic_drbd_dbg(device, "meta_data io: %s [%d]:%s(,%llus,%s) %pS\n",
current->comm, current->pid, __func__,
- (unsigned long long)sector, (rw & WRITE) ? "WRITE" : "READ",
+ (unsigned long long)sector, (op == REQ_OP_WRITE) ? "WRITE" : "READ",
(void*)_RET_IP_ );
if (sector < drbd_md_first_sector(bdev) ||
sector + 7 > drbd_md_last_sector(bdev))
drbd_alert(device, "%s [%d]:%s(,%llus,%s) out of range md access!\n",
current->comm, current->pid, __func__,
- (unsigned long long)sector, (rw & WRITE) ? "WRITE" : "READ");
+ (unsigned long long)sector,
+ (op == REQ_OP_WRITE) ? "WRITE" : "READ");
- err = _drbd_md_sync_page_io(device, bdev, sector, rw);
+ err = _drbd_md_sync_page_io(device, bdev, sector, op);
if (err) {
drbd_err(device, "drbd_md_sync_page_io(,%llus,%s) failed with error %d\n",
- (unsigned long long)sector, (rw & WRITE) ? "WRITE" : "READ", err);
+ (unsigned long long)sector,
+ (op == REQ_OP_WRITE) ? "WRITE" : "READ", err);
}
return err;
}
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index e8959fe..126bf4a 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -980,7 +980,7 @@ static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_ho
struct drbd_bitmap *b = device->bitmap;
struct page *page;
unsigned int len;
- unsigned int rw = (ctx->flags & BM_AIO_READ) ? READ : WRITE;
+ unsigned int op = (ctx->flags & BM_AIO_READ) ? REQ_OP_READ : REQ_OP_WRITE;
sector_t on_disk_sector =
device->ldev->md.md_offset + device->ldev->md.bm_offset;
@@ -1011,9 +1011,9 @@ static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_ho
bio_add_page(bio, page, len, 0);
bio->bi_private = ctx;
bio->bi_end_io = drbd_bm_endio;
- bio->bi_rw = rw;
+ bio->bi_op = op;
- if (drbd_insert_fault(device, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD)) {
+ if (drbd_insert_fault(device, (op == REQ_OP_WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD)) {
bio_io_error(bio);
} else {
submit_bio(bio);
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 7a1cf7e..33f0b82 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1507,7 +1507,7 @@ extern int drbd_resync_finished(struct drbd_device *device);
extern void *drbd_md_get_buffer(struct drbd_device *device, const char *intent);
extern void drbd_md_put_buffer(struct drbd_device *device);
extern int drbd_md_sync_page_io(struct drbd_device *device,
- struct drbd_backing_dev *bdev, sector_t sector, int rw);
+ struct drbd_backing_dev *bdev, sector_t sector, int op);
extern void drbd_ov_out_of_sync_found(struct drbd_device *, sector_t, int);
extern void wait_until_done_or_force_detached(struct drbd_device *device,
struct drbd_backing_dev *bdev, unsigned int *done);
@@ -1557,7 +1557,7 @@ extern bool drbd_rs_should_slow_down(struct drbd_device *device, sector_t sector
bool throttle_if_app_is_waiting);
extern int drbd_submit_peer_request(struct drbd_device *,
struct drbd_peer_request *, const unsigned,
- const int);
+ const unsigned, const int);
extern int drbd_free_peer_reqs(struct drbd_device *, struct list_head *);
extern struct drbd_peer_request *drbd_alloc_peer_req(struct drbd_peer_device *, u64,
sector_t, unsigned int,
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 2ba1494..30c93d6 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -3061,7 +3061,7 @@ void drbd_md_write(struct drbd_device *device, void *b)
D_ASSERT(device, drbd_md_ss(device->ldev) == device->ldev->md.md_offset);
sector = device->ldev->md.md_offset;
- if (drbd_md_sync_page_io(device, device->ldev, sector, WRITE)) {
+ if (drbd_md_sync_page_io(device, device->ldev, sector, REQ_OP_WRITE)) {
/* this was a try anyways ... */
drbd_err(device, "meta data update failed!\n");
drbd_chk_io_error(device, 1, DRBD_META_IO_ERROR);
@@ -3263,7 +3263,8 @@ int drbd_md_read(struct drbd_device *device, struct drbd_backing_dev *bdev)
* Affects the paranoia out-of-range access check in drbd_md_sync_page_io(). */
bdev->md.md_size_sect = 8;
- if (drbd_md_sync_page_io(device, bdev, bdev->md.md_offset, READ)) {
+ if (drbd_md_sync_page_io(device, bdev, bdev->md.md_offset,
+ REQ_OP_READ)) {
/* NOTE: can't do normal error processing here as this is
called BEFORE disk is attached */
drbd_err(device, "Error while reading metadata.\n");
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 050aaa1..a0b95da 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -1398,7 +1398,8 @@ void drbd_bump_write_ordering(struct drbd_resource *resource, struct drbd_backin
/* TODO allocate from our own bio_set. */
int drbd_submit_peer_request(struct drbd_device *device,
struct drbd_peer_request *peer_req,
- const unsigned rw, const int fault_type)
+ const unsigned op, const unsigned op_flags,
+ const int fault_type)
{
struct bio *bios = NULL;
struct bio *bio;
@@ -1450,7 +1451,8 @@ next_bio:
/* > peer_req->i.sector, unless this is the first bio */
bio->bi_iter.bi_sector = sector;
bio->bi_bdev = device->ldev->backing_bdev;
- bio->bi_rw = rw;
+ bio->bi_op = op;
+ bio->bi_rw = op_flags;
bio->bi_private = peer_req;
bio->bi_end_io = drbd_peer_request_endio;
@@ -1458,7 +1460,7 @@ next_bio:
bios = bio;
++n_bios;
- if (rw & REQ_DISCARD) {
+ if (op == REQ_OP_DISCARD) {
bio->bi_iter.bi_size = data_size;
goto submit;
}
@@ -1830,7 +1832,8 @@ static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t secto
spin_unlock_irq(&device->resource->req_lock);
atomic_add(pi->size >> 9, &device->rs_sect_ev);
- if (drbd_submit_peer_request(device, peer_req, WRITE, DRBD_FAULT_RS_WR) == 0)
+ if (drbd_submit_peer_request(device, peer_req, REQ_OP_WRITE, 0,
+ DRBD_FAULT_RS_WR) == 0)
return 0;
/* don't care for the reason here */
@@ -2152,12 +2155,19 @@ static int wait_for_and_update_peer_seq(struct drbd_peer_device *peer_device, co
/* see also bio_flags_to_wire()
* DRBD_REQ_*, because we need to semantically map the flags to data packet
* flags and back. We may replicate to other kernel versions. */
-static unsigned long wire_flags_to_bio(u32 dpf)
+static unsigned long wire_flags_to_bio_flags(u32 dpf)
{
return (dpf & DP_RW_SYNC ? REQ_SYNC : 0) |
(dpf & DP_FUA ? REQ_FUA : 0) |
- (dpf & DP_FLUSH ? REQ_FLUSH : 0) |
- (dpf & DP_DISCARD ? REQ_DISCARD : 0);
+ (dpf & DP_FLUSH ? REQ_FLUSH : 0);
+}
+
+static unsigned long wire_flags_to_bio_op(u32 dpf)
+{
+ if (dpf & DP_DISCARD)
+ return REQ_OP_DISCARD;
+ else
+ return REQ_OP_WRITE;
}
static void fail_postponed_requests(struct drbd_device *device, sector_t sector,
@@ -2303,7 +2313,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
struct drbd_peer_request *peer_req;
struct p_data *p = pi->data;
u32 peer_seq = be32_to_cpu(p->seq_num);
- int rw = WRITE;
+ int op, op_flags;
u32 dp_flags;
int err, tp;
@@ -2342,14 +2352,15 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
peer_req->flags |= EE_APPLICATION;
dp_flags = be32_to_cpu(p->dp_flags);
- rw |= wire_flags_to_bio(dp_flags);
+ op = wire_flags_to_bio_op(dp_flags);
+ op_flags = wire_flags_to_bio_flags(dp_flags);
if (pi->cmd == P_TRIM) {
struct request_queue *q = bdev_get_queue(device->ldev->backing_bdev);
peer_req->flags |= EE_IS_TRIM;
if (!blk_queue_discard(q))
peer_req->flags |= EE_IS_TRIM_USE_ZEROOUT;
D_ASSERT(peer_device, peer_req->i.size > 0);
- D_ASSERT(peer_device, rw & REQ_DISCARD);
+ D_ASSERT(peer_device, op == REQ_OP_DISCARD);
D_ASSERT(peer_device, peer_req->pages == NULL);
} else if (peer_req->pages == NULL) {
D_ASSERT(device, peer_req->i.size == 0);
@@ -2433,7 +2444,8 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
peer_req->flags |= EE_CALL_AL_COMPLETE_IO;
}
- err = drbd_submit_peer_request(device, peer_req, rw, DRBD_FAULT_DT_WR);
+ err = drbd_submit_peer_request(device, peer_req, op, op_flags,
+ DRBD_FAULT_DT_WR);
if (!err)
return 0;
@@ -2723,7 +2735,8 @@ submit_for_resync:
submit:
update_receiver_timing_details(connection, drbd_submit_peer_request);
inc_unacked(device);
- if (drbd_submit_peer_request(device, peer_req, READ, fault_type) == 0)
+ if (drbd_submit_peer_request(device, peer_req, REQ_OP_READ, 0,
+ fault_type) == 0)
return 0;
/* don't care for the reason here */
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 4d87499..2a04b43 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -397,7 +397,8 @@ static int read_for_csum(struct drbd_peer_device *peer_device, sector_t sector,
spin_unlock_irq(&device->resource->req_lock);
atomic_add(size >> 9, &device->rs_sect_ev);
- if (drbd_submit_peer_request(device, peer_req, READ, DRBD_FAULT_RS_RD) == 0)
+ if (drbd_submit_peer_request(device, peer_req, REQ_OP_READ, 0,
+ DRBD_FAULT_RS_RD) == 0)
return 0;
/* If it failed because of ENOMEM, retry should help. If it failed
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 07/42] btrfs: have submit_one_bio users setup bio bi_op |
| Message-ID | <rnz7c-6su-21@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This patch has btrfs's submit_one_bio callers set the bio->bi_op to a
REQ_OP and the bi_rw to rq_flag_bits.
The next patches will continue to convert btrfs,
so submit_bio_hook and merge_bio_hook
related code will be modified to take only the bio. I did
not do it in this patch to try and keep it smaller.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/btrfs/extent_io.c | 88 +++++++++++++++++++++++++++-------------------------
1 file changed, 45 insertions(+), 43 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index fdeb8fa..45fa3be 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2377,7 +2377,7 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
int read_mode;
int ret;
- BUG_ON(failed_bio->bi_rw & REQ_WRITE);
+ BUG_ON(failed_bio->bi_op == REQ_OP_WRITE);
ret = btrfs_get_io_failure_record(inode, start, end, &failrec);
if (ret)
@@ -2403,6 +2403,8 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
free_io_failure(inode, failrec);
return -EIO;
}
+ bio->bi_op = REQ_OP_READ;
+ bio->bi_rw = read_mode;
pr_debug("Repair Read Error: submitting new read[%#x] to this_mirror=%d, in_validation=%d\n",
read_mode, failrec->this_mirror, failrec->in_validation);
@@ -2714,8 +2716,8 @@ struct bio *btrfs_io_bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs)
}
-static int __must_check submit_one_bio(int rw, struct bio *bio,
- int mirror_num, unsigned long bio_flags)
+static int __must_check submit_one_bio(struct bio *bio, int mirror_num,
+ unsigned long bio_flags)
{
int ret = 0;
struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
@@ -2726,12 +2728,12 @@ static int __must_check submit_one_bio(int rw, struct bio *bio,
start = page_offset(page) + bvec->bv_offset;
bio->bi_private = NULL;
- bio->bi_rw = rw;
bio_get(bio);
if (tree->ops && tree->ops->submit_bio_hook)
- ret = tree->ops->submit_bio_hook(page->mapping->host, rw, bio,
- mirror_num, bio_flags, start);
+ ret = tree->ops->submit_bio_hook(page->mapping->host,
+ bio->bi_rw, bio, mirror_num,
+ bio_flags, start);
else
btrfsic_submit_bio(bio);
@@ -2739,20 +2741,20 @@ static int __must_check submit_one_bio(int rw, struct bio *bio,
return ret;
}
-static int merge_bio(int rw, struct extent_io_tree *tree, struct page *page,
+static int merge_bio(struct extent_io_tree *tree, struct page *page,
unsigned long offset, size_t size, struct bio *bio,
unsigned long bio_flags)
{
int ret = 0;
if (tree->ops && tree->ops->merge_bio_hook)
- ret = tree->ops->merge_bio_hook(rw, page, offset, size, bio,
- bio_flags);
+ ret = tree->ops->merge_bio_hook(bio->bi_op, page, offset, size,
+ bio, bio_flags);
BUG_ON(ret < 0);
return ret;
}
-static int submit_extent_page(int rw, struct extent_io_tree *tree,
+static int submit_extent_page(int op, int op_flags, struct extent_io_tree *tree,
struct writeback_control *wbc,
struct page *page, sector_t sector,
size_t size, unsigned long offset,
@@ -2780,10 +2782,9 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree,
if (prev_bio_flags != bio_flags || !contig ||
force_bio_submit ||
- merge_bio(rw, tree, page, offset, page_size, bio, bio_flags) ||
+ merge_bio(tree, page, offset, page_size, bio, bio_flags) ||
bio_add_page(bio, page, page_size, offset) < page_size) {
- ret = submit_one_bio(rw, bio, mirror_num,
- prev_bio_flags);
+ ret = submit_one_bio(bio, mirror_num, prev_bio_flags);
if (ret < 0) {
*bio_ret = NULL;
return ret;
@@ -2804,6 +2805,8 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree,
bio_add_page(bio, page, page_size, offset);
bio->bi_end_io = end_io_func;
bio->bi_private = tree;
+ bio->bi_op = op;
+ bio->bi_rw = op_flags;
if (wbc) {
wbc_init_bio(wbc, bio);
wbc_account_io(wbc, page, page_size);
@@ -2812,7 +2815,7 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree,
if (bio_ret)
*bio_ret = bio;
else
- ret = submit_one_bio(rw, bio, mirror_num, bio_flags);
+ ret = submit_one_bio(bio, mirror_num, bio_flags);
return ret;
}
@@ -2876,7 +2879,7 @@ static int __do_readpage(struct extent_io_tree *tree,
get_extent_t *get_extent,
struct extent_map **em_cached,
struct bio **bio, int mirror_num,
- unsigned long *bio_flags, int rw,
+ unsigned long *bio_flags, int read_flags,
u64 *prev_em_start)
{
struct inode *inode = page->mapping->host;
@@ -3059,8 +3062,8 @@ static int __do_readpage(struct extent_io_tree *tree,
}
pnr -= page->index;
- ret = submit_extent_page(rw, tree, NULL, page,
- sector, disk_io_size, pg_offset,
+ ret = submit_extent_page(REQ_OP_READ, read_flags, tree, NULL,
+ page, sector, disk_io_size, pg_offset,
bdev, bio, pnr,
end_bio_extent_readpage, mirror_num,
*bio_flags,
@@ -3091,7 +3094,7 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree,
get_extent_t *get_extent,
struct extent_map **em_cached,
struct bio **bio, int mirror_num,
- unsigned long *bio_flags, int rw,
+ unsigned long *bio_flags,
u64 *prev_em_start)
{
struct inode *inode;
@@ -3112,7 +3115,7 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree,
for (index = 0; index < nr_pages; index++) {
__do_readpage(tree, pages[index], get_extent, em_cached, bio,
- mirror_num, bio_flags, rw, prev_em_start);
+ mirror_num, bio_flags, 0, prev_em_start);
put_page(pages[index]);
}
}
@@ -3122,7 +3125,7 @@ static void __extent_readpages(struct extent_io_tree *tree,
int nr_pages, get_extent_t *get_extent,
struct extent_map **em_cached,
struct bio **bio, int mirror_num,
- unsigned long *bio_flags, int rw,
+ unsigned long *bio_flags,
u64 *prev_em_start)
{
u64 start = 0;
@@ -3144,7 +3147,7 @@ static void __extent_readpages(struct extent_io_tree *tree,
index - first_index, start,
end, get_extent, em_cached,
bio, mirror_num, bio_flags,
- rw, prev_em_start);
+ prev_em_start);
start = page_start;
end = start + PAGE_SIZE - 1;
first_index = index;
@@ -3155,7 +3158,7 @@ static void __extent_readpages(struct extent_io_tree *tree,
__do_contiguous_readpages(tree, &pages[first_index],
index - first_index, start,
end, get_extent, em_cached, bio,
- mirror_num, bio_flags, rw,
+ mirror_num, bio_flags,
prev_em_start);
}
@@ -3163,7 +3166,7 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
struct page *page,
get_extent_t *get_extent,
struct bio **bio, int mirror_num,
- unsigned long *bio_flags, int rw)
+ unsigned long *bio_flags, int read_flags)
{
struct inode *inode = page->mapping->host;
struct btrfs_ordered_extent *ordered;
@@ -3183,7 +3186,7 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
}
ret = __do_readpage(tree, page, get_extent, NULL, bio, mirror_num,
- bio_flags, rw, NULL);
+ bio_flags, read_flags, NULL);
return ret;
}
@@ -3195,9 +3198,9 @@ int extent_read_full_page(struct extent_io_tree *tree, struct page *page,
int ret;
ret = __extent_read_full_page(tree, page, get_extent, &bio, mirror_num,
- &bio_flags, READ);
+ &bio_flags, 0);
if (bio)
- ret = submit_one_bio(READ, bio, mirror_num, bio_flags);
+ ret = submit_one_bio(bio, mirror_num, bio_flags);
return ret;
}
@@ -3438,7 +3441,8 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
page->index, cur, end);
}
- ret = submit_extent_page(write_flags, tree, wbc, page,
+ ret = submit_extent_page(REQ_OP_WRITE, write_flags,
+ tree, wbc, page,
sector, iosize, pg_offset,
bdev, &epd->bio, max_nr,
end_bio_extent_writepage,
@@ -3478,13 +3482,11 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
size_t pg_offset = 0;
loff_t i_size = i_size_read(inode);
unsigned long end_index = i_size >> PAGE_SHIFT;
- int write_flags;
+ int write_flags = 0;
unsigned long nr_written = 0;
if (wbc->sync_mode == WB_SYNC_ALL)
write_flags = WRITE_SYNC;
- else
- write_flags = WRITE;
trace___extent_writepage(page, inode, wbc);
@@ -3728,7 +3730,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
u64 offset = eb->start;
unsigned long i, num_pages;
unsigned long bio_flags = 0;
- int rw = (epd->sync_io ? WRITE_SYNC : WRITE) | REQ_META;
+ int write_flags = (epd->sync_io ? WRITE_SYNC : 0) | REQ_META;
int ret = 0;
clear_bit(EXTENT_BUFFER_WRITE_ERR, &eb->bflags);
@@ -3742,9 +3744,10 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
clear_page_dirty_for_io(p);
set_page_writeback(p);
- ret = submit_extent_page(rw, tree, wbc, p, offset >> 9,
- PAGE_SIZE, 0, bdev, &epd->bio,
- -1, end_bio_extent_buffer_writepage,
+ ret = submit_extent_page(REQ_OP_WRITE, write_flags, tree, wbc,
+ p, offset >> 9, PAGE_SIZE, 0, bdev,
+ &epd->bio, -1,
+ end_bio_extent_buffer_writepage,
0, epd->bio_flags, bio_flags, false);
epd->bio_flags = bio_flags;
if (ret) {
@@ -4054,13 +4057,13 @@ retry:
static void flush_epd_write_bio(struct extent_page_data *epd)
{
if (epd->bio) {
- int rw = WRITE;
int ret;
+ epd->bio->bi_op = REQ_OP_WRITE;
if (epd->sync_io)
- rw = WRITE_SYNC;
+ epd->bio->bi_rw = WRITE_SYNC;
- ret = submit_one_bio(rw, epd->bio, 0, epd->bio_flags);
+ ret = submit_one_bio(epd->bio, 0, epd->bio_flags);
BUG_ON(ret < 0); /* -ENOMEM */
epd->bio = NULL;
}
@@ -4187,19 +4190,19 @@ int extent_readpages(struct extent_io_tree *tree,
if (nr < ARRAY_SIZE(pagepool))
continue;
__extent_readpages(tree, pagepool, nr, get_extent, &em_cached,
- &bio, 0, &bio_flags, READ, &prev_em_start);
+ &bio, 0, &bio_flags, &prev_em_start);
nr = 0;
}
if (nr)
__extent_readpages(tree, pagepool, nr, get_extent, &em_cached,
- &bio, 0, &bio_flags, READ, &prev_em_start);
+ &bio, 0, &bio_flags, &prev_em_start);
if (em_cached)
free_extent_map(em_cached);
BUG_ON(!list_empty(pages));
if (bio)
- return submit_one_bio(READ, bio, 0, bio_flags);
+ return submit_one_bio(bio, 0, bio_flags);
return 0;
}
@@ -5221,7 +5224,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree,
err = __extent_read_full_page(tree, page,
get_extent, &bio,
mirror_num, &bio_flags,
- READ | REQ_META);
+ REQ_META);
if (err)
ret = err;
} else {
@@ -5230,8 +5233,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree,
}
if (bio) {
- err = submit_one_bio(READ | REQ_META, bio, mirror_num,
- bio_flags);
+ err = submit_one_bio(bio, mirror_num, bio_flags);
if (err)
return err;
}
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 18/42] pm: set bi_op to REQ_OP |
| Message-ID | <rnz7d-6su-27@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This patch has the pm code use bio->bi_op for REQ_OPs and rq_flag_bits
to bio->bi_rw.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
kernel/power/swap.c | 31 +++++++++++++++++++------------
1 file changed, 19 insertions(+), 12 deletions(-)
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 4d050eb..adbcb1b 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -250,7 +250,7 @@ static void hib_end_io(struct bio *bio)
bio_put(bio);
}
-static int hib_submit_io(int rw, pgoff_t page_off, void *addr,
+static int hib_submit_io(int op, int op_flags, pgoff_t page_off, void *addr,
struct hib_bio_batch *hb)
{
struct page *page = virt_to_page(addr);
@@ -260,7 +260,8 @@ static int hib_submit_io(int rw, pgoff_t page_off, void *addr,
bio = bio_alloc(__GFP_RECLAIM | __GFP_HIGH, 1);
bio->bi_iter.bi_sector = page_off * (PAGE_SIZE >> 9);
bio->bi_bdev = hib_resume_bdev;
- bio->bi_rw = rw;
+ bio->bi_op = op;
+ bio->bi_rw = op_flags;
if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE) {
printk(KERN_ERR "PM: Adding page to bio failed at %llu\n",
@@ -296,7 +297,8 @@ static int mark_swapfiles(struct swap_map_handle *handle, unsigned int flags)
{
int error;
- hib_submit_io(READ_SYNC, swsusp_resume_block, swsusp_header, NULL);
+ hib_submit_io(REQ_OP_READ, READ_SYNC, swsusp_resume_block,
+ swsusp_header, NULL);
if (!memcmp("SWAP-SPACE",swsusp_header->sig, 10) ||
!memcmp("SWAPSPACE2",swsusp_header->sig, 10)) {
memcpy(swsusp_header->orig_sig,swsusp_header->sig, 10);
@@ -305,8 +307,8 @@ static int mark_swapfiles(struct swap_map_handle *handle, unsigned int flags)
swsusp_header->flags = flags;
if (flags & SF_CRC32_MODE)
swsusp_header->crc32 = handle->crc32;
- error = hib_submit_io(WRITE_SYNC, swsusp_resume_block,
- swsusp_header, NULL);
+ error = hib_submit_io(REQ_OP_WRITE, WRITE_SYNC,
+ swsusp_resume_block, swsusp_header, NULL);
} else {
printk(KERN_ERR "PM: Swap header not found!\n");
error = -ENODEV;
@@ -379,7 +381,7 @@ static int write_page(void *buf, sector_t offset, struct hib_bio_batch *hb)
} else {
src = buf;
}
- return hib_submit_io(WRITE_SYNC, offset, src, hb);
+ return hib_submit_io(REQ_OP_WRITE, WRITE_SYNC, offset, src, hb);
}
static void release_swap_writer(struct swap_map_handle *handle)
@@ -982,7 +984,8 @@ static int get_swap_reader(struct swap_map_handle *handle,
return -ENOMEM;
}
- error = hib_submit_io(READ_SYNC, offset, tmp->map, NULL);
+ error = hib_submit_io(REQ_OP_READ, READ_SYNC, offset,
+ tmp->map, NULL);
if (error) {
release_swap_reader(handle);
return error;
@@ -1006,7 +1009,7 @@ static int swap_read_page(struct swap_map_handle *handle, void *buf,
offset = handle->cur->entries[handle->k];
if (!offset)
return -EFAULT;
- error = hib_submit_io(READ_SYNC, offset, buf, hb);
+ error = hib_submit_io(REQ_OP_READ, READ_SYNC, offset, buf, hb);
if (error)
return error;
if (++handle->k >= MAP_PAGE_ENTRIES) {
@@ -1508,7 +1511,8 @@ int swsusp_check(void)
if (!IS_ERR(hib_resume_bdev)) {
set_blocksize(hib_resume_bdev, PAGE_SIZE);
clear_page(swsusp_header);
- error = hib_submit_io(READ_SYNC, swsusp_resume_block,
+ error = hib_submit_io(REQ_OP_READ, READ_SYNC,
+ swsusp_resume_block,
swsusp_header, NULL);
if (error)
goto put;
@@ -1516,7 +1520,8 @@ int swsusp_check(void)
if (!memcmp(HIBERNATE_SIG, swsusp_header->sig, 10)) {
memcpy(swsusp_header->sig, swsusp_header->orig_sig, 10);
/* Reset swap signature now */
- error = hib_submit_io(WRITE_SYNC, swsusp_resume_block,
+ error = hib_submit_io(REQ_OP_WRITE, WRITE_SYNC,
+ swsusp_resume_block,
swsusp_header, NULL);
} else {
error = -EINVAL;
@@ -1560,10 +1565,12 @@ int swsusp_unmark(void)
{
int error;
- hib_submit_io(READ_SYNC, swsusp_resume_block, swsusp_header, NULL);
+ hib_submit_io(REQ_OP_READ, READ_SYNC, swsusp_resume_block,
+ swsusp_header, NULL);
if (!memcmp(HIBERNATE_SIG,swsusp_header->sig, 10)) {
memcpy(swsusp_header->sig,swsusp_header->orig_sig, 10);
- error = hib_submit_io(WRITE_SYNC, swsusp_resume_block,
+ error = hib_submit_io(REQ_OP_WRITE, WRITE_SYNC,
+ swsusp_resume_block,
swsusp_header, NULL);
} else {
printk(KERN_ERR "PM: Cannot find swsusp signature!\n");
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 20/42] dm: pass dm stats data dir instead of bi_rw |
| Message-ID | <rnz7d-6su-35@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
It looks like dm stats cares about the data direction
(READ vs WRITE) and does not need the bio/request flags.
Commands like REQ_FLUSH, REQ_DISCARD and REQ_WRITE_SAME
are currently always set with REQ_WRITE, so the extra check for
REQ_DISCARD in dm_stats_account_io is not needed.
This patch has it use the bio and request data_dir helpers
instead of accessing the bi_rw/cmd_flags directly. This makes
the next patches that remove the operation from the cmd_flags
and bi_rw easier, because we will no longer have the REQ_WRITE
bit set for operations like discards.
This patch is compile tested only.
v2:
1. Merged Mike Snitzer's fixes to pass in int instead of
unsigned long.
2. Fix 80 char col issues.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
drivers/md/dm-stats.c | 9 ++++-----
drivers/md/dm.c | 21 ++++++++++++---------
2 files changed, 16 insertions(+), 14 deletions(-)
diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c
index 8289804..4fba26c 100644
--- a/drivers/md/dm-stats.c
+++ b/drivers/md/dm-stats.c
@@ -514,11 +514,10 @@ static void dm_stat_round(struct dm_stat *s, struct dm_stat_shared *shared,
}
static void dm_stat_for_entry(struct dm_stat *s, size_t entry,
- unsigned long bi_rw, sector_t len,
+ int idx, sector_t len,
struct dm_stats_aux *stats_aux, bool end,
unsigned long duration_jiffies)
{
- unsigned long idx = bi_rw & REQ_WRITE;
struct dm_stat_shared *shared = &s->stat_shared[entry];
struct dm_stat_percpu *p;
@@ -584,7 +583,7 @@ static void dm_stat_for_entry(struct dm_stat *s, size_t entry,
#endif
}
-static void __dm_stat_bio(struct dm_stat *s, unsigned long bi_rw,
+static void __dm_stat_bio(struct dm_stat *s, int bi_rw,
sector_t bi_sector, sector_t end_sector,
bool end, unsigned long duration_jiffies,
struct dm_stats_aux *stats_aux)
@@ -645,8 +644,8 @@ void dm_stats_account_io(struct dm_stats *stats, unsigned long bi_rw,
last = raw_cpu_ptr(stats->last);
stats_aux->merged =
(bi_sector == (ACCESS_ONCE(last->last_sector) &&
- ((bi_rw & (REQ_WRITE | REQ_DISCARD)) ==
- (ACCESS_ONCE(last->last_rw) & (REQ_WRITE | REQ_DISCARD)))
+ ((bi_rw == WRITE) ==
+ (ACCESS_ONCE(last->last_rw) == WRITE))
));
ACCESS_ONCE(last->last_sector) = end_sector;
ACCESS_ONCE(last->last_rw) = bi_rw;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 5432da7..98fea0e 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -723,8 +723,9 @@ static void start_io_acct(struct dm_io *io)
atomic_inc_return(&md->pending[rw]));
if (unlikely(dm_stats_used(&md->stats)))
- dm_stats_account_io(&md->stats, bio->bi_rw, bio->bi_iter.bi_sector,
- bio_sectors(bio), false, 0, &io->stats_aux);
+ dm_stats_account_io(&md->stats, bio_data_dir(bio),
+ bio->bi_iter.bi_sector, bio_sectors(bio),
+ false, 0, &io->stats_aux);
}
static void end_io_acct(struct dm_io *io)
@@ -738,8 +739,9 @@ static void end_io_acct(struct dm_io *io)
generic_end_io_acct(rw, &dm_disk(md)->part0, io->start_time);
if (unlikely(dm_stats_used(&md->stats)))
- dm_stats_account_io(&md->stats, bio->bi_rw, bio->bi_iter.bi_sector,
- bio_sectors(bio), true, duration, &io->stats_aux);
+ dm_stats_account_io(&md->stats, bio_data_dir(bio),
+ bio->bi_iter.bi_sector, bio_sectors(bio),
+ true, duration, &io->stats_aux);
/*
* After this is decremented the bio must not be touched if it is
@@ -1121,9 +1123,9 @@ static void rq_end_stats(struct mapped_device *md, struct request *orig)
if (unlikely(dm_stats_used(&md->stats))) {
struct dm_rq_target_io *tio = tio_from_request(orig);
tio->duration_jiffies = jiffies - tio->duration_jiffies;
- dm_stats_account_io(&md->stats, orig->cmd_flags, blk_rq_pos(orig),
- tio->n_sectors, true, tio->duration_jiffies,
- &tio->stats_aux);
+ dm_stats_account_io(&md->stats, rq_data_dir(orig),
+ blk_rq_pos(orig), tio->n_sectors, true,
+ tio->duration_jiffies, &tio->stats_aux);
}
}
@@ -2082,8 +2084,9 @@ static void dm_start_request(struct mapped_device *md, struct request *orig)
struct dm_rq_target_io *tio = tio_from_request(orig);
tio->duration_jiffies = jiffies;
tio->n_sectors = blk_rq_sectors(orig);
- dm_stats_account_io(&md->stats, orig->cmd_flags, blk_rq_pos(orig),
- tio->n_sectors, false, 0, &tio->stats_aux);
+ dm_stats_account_io(&md->stats, rq_data_dir(orig),
+ blk_rq_pos(orig), tio->n_sectors, false, 0,
+ &tio->stats_aux);
}
/*
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 10/42] btrfs: use bio fields for op and flags |
| Message-ID | <rnz7d-6su-41@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
The bio bi_op and bi_rw is now setup, so there is no need
to pass around the rq_flag_bits bits too. btrfs users should should
access the bio.
v2:
1. Fix merge_bio issue where instead of removing rw/op argument
I passed it in again to the merge_bio related functions.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/btrfs/compression.c | 13 ++++++-------
fs/btrfs/ctree.h | 2 +-
fs/btrfs/disk-io.c | 30 ++++++++++++------------------
fs/btrfs/disk-io.h | 2 +-
fs/btrfs/extent_io.c | 12 +++++-------
fs/btrfs/extent_io.h | 8 ++++----
fs/btrfs/inode.c | 44 ++++++++++++++++++++------------------------
fs/btrfs/volumes.c | 6 +++---
fs/btrfs/volumes.h | 2 +-
9 files changed, 53 insertions(+), 66 deletions(-)
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 334a00c..356ac36 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -374,7 +374,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
page = compressed_pages[pg_index];
page->mapping = inode->i_mapping;
if (bio->bi_iter.bi_size)
- ret = io_tree->ops->merge_bio_hook(WRITE, page, 0,
+ ret = io_tree->ops->merge_bio_hook(page, 0,
PAGE_SIZE,
bio, 0);
else
@@ -402,7 +402,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
BUG_ON(ret); /* -ENOMEM */
}
- ret = btrfs_map_bio(root, WRITE, bio, 0, 1);
+ ret = btrfs_map_bio(root, bio, 0, 1);
BUG_ON(ret); /* -ENOMEM */
bio_put(bio);
@@ -433,7 +433,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
BUG_ON(ret); /* -ENOMEM */
}
- ret = btrfs_map_bio(root, WRITE, bio, 0, 1);
+ ret = btrfs_map_bio(root, bio, 0, 1);
BUG_ON(ret); /* -ENOMEM */
bio_put(bio);
@@ -659,7 +659,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
page->index = em_start >> PAGE_SHIFT;
if (comp_bio->bi_iter.bi_size)
- ret = tree->ops->merge_bio_hook(READ, page, 0,
+ ret = tree->ops->merge_bio_hook(page, 0,
PAGE_SIZE,
comp_bio, 0);
else
@@ -690,8 +690,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
sums += DIV_ROUND_UP(comp_bio->bi_iter.bi_size,
root->sectorsize);
- ret = btrfs_map_bio(root, READ, comp_bio,
- mirror_num, 0);
+ ret = btrfs_map_bio(root, comp_bio, mirror_num, 0);
if (ret) {
bio->bi_error = ret;
bio_endio(comp_bio);
@@ -721,7 +720,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
BUG_ON(ret); /* -ENOMEM */
}
- ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0);
+ ret = btrfs_map_bio(root, comp_bio, mirror_num, 0);
if (ret) {
bio->bi_error = ret;
bio_endio(comp_bio);
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index a0c6aca..4e50f59 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -4087,7 +4087,7 @@ int btrfs_create_subvol_root(struct btrfs_trans_handle *trans,
struct btrfs_root *new_root,
struct btrfs_root *parent_root,
u64 new_dirid);
-int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset,
+int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
size_t size, struct bio *bio,
unsigned long bio_flags);
int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 932268b..bea6df6 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -124,7 +124,6 @@ struct async_submit_bio {
struct list_head list;
extent_submit_bio_hook_t *submit_bio_start;
extent_submit_bio_hook_t *submit_bio_done;
- int rw;
int mirror_num;
unsigned long bio_flags;
/*
@@ -797,7 +796,7 @@ static void run_one_async_start(struct btrfs_work *work)
int ret;
async = container_of(work, struct async_submit_bio, work);
- ret = async->submit_bio_start(async->inode, async->rw, async->bio,
+ ret = async->submit_bio_start(async->inode, async->bio,
async->mirror_num, async->bio_flags,
async->bio_offset);
if (ret)
@@ -830,9 +829,8 @@ static void run_one_async_done(struct btrfs_work *work)
return;
}
- async->submit_bio_done(async->inode, async->rw, async->bio,
- async->mirror_num, async->bio_flags,
- async->bio_offset);
+ async->submit_bio_done(async->inode, async->bio, async->mirror_num,
+ async->bio_flags, async->bio_offset);
}
static void run_one_async_free(struct btrfs_work *work)
@@ -844,7 +842,7 @@ static void run_one_async_free(struct btrfs_work *work)
}
int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
- int rw, struct bio *bio, int mirror_num,
+ struct bio *bio, int mirror_num,
unsigned long bio_flags,
u64 bio_offset,
extent_submit_bio_hook_t *submit_bio_start,
@@ -857,7 +855,6 @@ int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
return -ENOMEM;
async->inode = inode;
- async->rw = rw;
async->bio = bio;
async->mirror_num = mirror_num;
async->submit_bio_start = submit_bio_start;
@@ -903,9 +900,8 @@ static int btree_csum_one_bio(struct bio *bio)
return ret;
}
-static int __btree_submit_bio_start(struct inode *inode, int rw,
- struct bio *bio, int mirror_num,
- unsigned long bio_flags,
+static int __btree_submit_bio_start(struct inode *inode, struct bio *bio,
+ int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
/*
@@ -915,7 +911,7 @@ static int __btree_submit_bio_start(struct inode *inode, int rw,
return btree_csum_one_bio(bio);
}
-static int __btree_submit_bio_done(struct inode *inode, int rw, struct bio *bio,
+static int __btree_submit_bio_done(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
@@ -925,7 +921,7 @@ static int __btree_submit_bio_done(struct inode *inode, int rw, struct bio *bio,
* when we're called for a write, we're already in the async
* submission context. Just jump into btrfs_map_bio
*/
- ret = btrfs_map_bio(BTRFS_I(inode)->root, rw, bio, mirror_num, 1);
+ ret = btrfs_map_bio(BTRFS_I(inode)->root, bio, mirror_num, 1);
if (ret) {
bio->bi_error = ret;
bio_endio(bio);
@@ -944,7 +940,7 @@ static int check_async_write(struct inode *inode, unsigned long bio_flags)
return 1;
}
-static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
+static int btree_submit_bio_hook(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
@@ -960,21 +956,19 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
bio, BTRFS_WQ_ENDIO_METADATA);
if (ret)
goto out_w_error;
- ret = btrfs_map_bio(BTRFS_I(inode)->root, rw, bio,
- mirror_num, 0);
+ ret = btrfs_map_bio(BTRFS_I(inode)->root, bio, mirror_num, 0);
} else if (!async) {
ret = btree_csum_one_bio(bio);
if (ret)
goto out_w_error;
- ret = btrfs_map_bio(BTRFS_I(inode)->root, rw, bio,
- mirror_num, 0);
+ ret = btrfs_map_bio(BTRFS_I(inode)->root, bio, mirror_num, 0);
} else {
/*
* kthread helpers are used to submit writes so that
* checksumming can happen in parallel across all CPUs
*/
ret = btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info,
- inode, rw, bio, mirror_num, 0,
+ inode, bio, mirror_num, 0,
bio_offset,
__btree_submit_bio_start,
__btree_submit_bio_done);
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 8e79d00..73c21a2 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -122,7 +122,7 @@ void btrfs_csum_final(u32 crc, char *result);
int btrfs_bio_wq_end_io(struct btrfs_fs_info *info, struct bio *bio,
enum btrfs_wq_endio_type metadata);
int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
- int rw, struct bio *bio, int mirror_num,
+ struct bio *bio, int mirror_num,
unsigned long bio_flags, u64 bio_offset,
extent_submit_bio_hook_t *submit_bio_start,
extent_submit_bio_hook_t *submit_bio_done);
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 45fa3be..3bac80d 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2409,8 +2409,7 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
pr_debug("Repair Read Error: submitting new read[%#x] to this_mirror=%d, in_validation=%d\n",
read_mode, failrec->this_mirror, failrec->in_validation);
- ret = tree->ops->submit_bio_hook(inode, read_mode, bio,
- failrec->this_mirror,
+ ret = tree->ops->submit_bio_hook(inode, bio, failrec->this_mirror,
failrec->bio_flags, 0);
if (ret) {
free_io_failure(inode, failrec);
@@ -2731,9 +2730,8 @@ static int __must_check submit_one_bio(struct bio *bio, int mirror_num,
bio_get(bio);
if (tree->ops && tree->ops->submit_bio_hook)
- ret = tree->ops->submit_bio_hook(page->mapping->host,
- bio->bi_rw, bio, mirror_num,
- bio_flags, start);
+ ret = tree->ops->submit_bio_hook(page->mapping->host, bio,
+ mirror_num, bio_flags, start);
else
btrfsic_submit_bio(bio);
@@ -2747,8 +2745,8 @@ static int merge_bio(struct extent_io_tree *tree, struct page *page,
{
int ret = 0;
if (tree->ops && tree->ops->merge_bio_hook)
- ret = tree->ops->merge_bio_hook(bio->bi_op, page, offset, size,
- bio, bio_flags);
+ ret = tree->ops->merge_bio_hook(page, offset, size, bio,
+ bio_flags);
BUG_ON(ret < 0);
return ret;
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index b5e0ade..f8db2fd 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -63,9 +63,9 @@ struct btrfs_root;
struct btrfs_io_bio;
struct io_failure_record;
-typedef int (extent_submit_bio_hook_t)(struct inode *inode, int rw,
- struct bio *bio, int mirror_num,
- unsigned long bio_flags, u64 bio_offset);
+typedef int (extent_submit_bio_hook_t)(struct inode *inode, struct bio *bio,
+ int mirror_num, unsigned long bio_flags,
+ u64 bio_offset);
struct extent_io_ops {
int (*fill_delalloc)(struct inode *inode, struct page *locked_page,
u64 start, u64 end, int *page_started,
@@ -73,7 +73,7 @@ struct extent_io_ops {
int (*writepage_start_hook)(struct page *page, u64 start, u64 end);
int (*writepage_io_hook)(struct page *page, u64 start, u64 end);
extent_submit_bio_hook_t *submit_bio_hook;
- int (*merge_bio_hook)(int rw, struct page *page, unsigned long offset,
+ int (*merge_bio_hook)(struct page *page, unsigned long offset,
size_t size, struct bio *bio,
unsigned long bio_flags);
int (*readpage_io_failed_hook)(struct page *page, int failed_mirror);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index c2dc75b..bd214ab 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1807,7 +1807,7 @@ static void btrfs_clear_bit_hook(struct inode *inode,
* extent_io.c merge_bio_hook, this must check the chunk tree to make sure
* we don't create bios that span stripes or chunks
*/
-int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset,
+int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
size_t size, struct bio *bio,
unsigned long bio_flags)
{
@@ -1822,7 +1822,7 @@ int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset,
length = bio->bi_iter.bi_size;
map_length = length;
- ret = btrfs_map_block(root->fs_info, rw, logical,
+ ret = btrfs_map_block(root->fs_info, bio->bi_op, logical,
&map_length, NULL, 0);
/* Will always return 0 with map_multi == NULL */
BUG_ON(ret < 0);
@@ -1839,9 +1839,8 @@ int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset,
* At IO completion time the cums attached on the ordered extent record
* are inserted into the btree
*/
-static int __btrfs_submit_bio_start(struct inode *inode, int rw,
- struct bio *bio, int mirror_num,
- unsigned long bio_flags,
+static int __btrfs_submit_bio_start(struct inode *inode, struct bio *bio,
+ int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
@@ -1860,14 +1859,14 @@ static int __btrfs_submit_bio_start(struct inode *inode, int rw,
* At IO completion time the cums attached on the ordered extent record
* are inserted into the btree
*/
-static int __btrfs_submit_bio_done(struct inode *inode, int rw, struct bio *bio,
+static int __btrfs_submit_bio_done(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
- ret = btrfs_map_bio(root, rw, bio, mirror_num, 1);
+ ret = btrfs_map_bio(root, bio, mirror_num, 1);
if (ret) {
bio->bi_error = ret;
bio_endio(bio);
@@ -1879,7 +1878,7 @@ static int __btrfs_submit_bio_done(struct inode *inode, int rw, struct bio *bio,
* extent_io.c submission hook. This does the right thing for csum calculation
* on write, or reading the csums from the tree before a read
*/
-static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
+static int btrfs_submit_bio_hook(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
@@ -1916,7 +1915,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
goto mapit;
/* we're doing a write, do the async checksumming */
ret = btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info,
- inode, rw, bio, mirror_num,
+ inode, bio, mirror_num,
bio_flags, bio_offset,
__btrfs_submit_bio_start,
__btrfs_submit_bio_done);
@@ -1928,7 +1927,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
}
mapit:
- ret = btrfs_map_bio(root, rw, bio, mirror_num, 0);
+ ret = btrfs_map_bio(root, bio, mirror_num, 0);
out:
if (ret < 0) {
@@ -7746,7 +7745,7 @@ err:
}
static inline int submit_dio_repair_bio(struct inode *inode, struct bio *bio,
- int rw, int mirror_num)
+ int mirror_num)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
@@ -7760,7 +7759,7 @@ static inline int submit_dio_repair_bio(struct inode *inode, struct bio *bio,
if (ret)
goto err;
- ret = btrfs_map_bio(root, rw, bio, mirror_num, 0);
+ ret = btrfs_map_bio(root, bio, mirror_num, 0);
err:
bio_put(bio);
return ret;
@@ -7846,8 +7845,7 @@ static int dio_read_error(struct inode *inode, struct bio *failed_bio,
"Repair DIO Read Error: submitting new dio read[%#x] to this_mirror=%d, in_validation=%d\n",
read_mode, failrec->this_mirror, failrec->in_validation);
- ret = submit_dio_repair_bio(inode, bio, read_mode,
- failrec->this_mirror);
+ ret = submit_dio_repair_bio(inode, bio, failrec->this_mirror);
if (ret) {
free_io_failure(inode, failrec);
bio_put(bio);
@@ -8137,7 +8135,7 @@ static void btrfs_endio_direct_write(struct bio *bio)
bio_put(bio);
}
-static int __btrfs_submit_bio_start_direct_io(struct inode *inode, int rw,
+static int __btrfs_submit_bio_start_direct_io(struct inode *inode,
struct bio *bio, int mirror_num,
unsigned long bio_flags, u64 offset)
{
@@ -8230,7 +8228,7 @@ static inline int btrfs_lookup_and_bind_dio_csum(struct btrfs_root *root,
}
static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
- int rw, u64 file_offset, int skip_sum,
+ u64 file_offset, int skip_sum,
int async_submit)
{
struct btrfs_dio_private *dip = bio->bi_private;
@@ -8255,8 +8253,7 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
if (write && async_submit) {
ret = btrfs_wq_submit_bio(root->fs_info,
- inode, rw, bio, 0, 0,
- file_offset,
+ inode, bio, 0, 0, file_offset,
__btrfs_submit_bio_start_direct_io,
__btrfs_submit_bio_done);
goto err;
@@ -8275,13 +8272,13 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
goto err;
}
map:
- ret = btrfs_map_bio(root, rw, bio, 0, async_submit);
+ ret = btrfs_map_bio(root, bio, 0, async_submit);
err:
bio_put(bio);
return ret;
}
-static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
+static int btrfs_submit_direct_hook(struct btrfs_dio_private *dip,
int skip_sum)
{
struct inode *inode = dip->inode;
@@ -8342,7 +8339,7 @@ next_block:
* before we're done setting it up
*/
atomic_inc(&dip->pending_bios);
- ret = __btrfs_submit_dio_bio(bio, inode, rw,
+ ret = __btrfs_submit_dio_bio(bio, inode,
file_offset, skip_sum,
async_submit);
if (ret) {
@@ -8387,7 +8384,7 @@ next_block:
}
submit:
- ret = __btrfs_submit_dio_bio(bio, inode, rw, file_offset, skip_sum,
+ ret = __btrfs_submit_dio_bio(bio, inode, file_offset, skip_sum,
async_submit);
if (!ret)
return 0;
@@ -8465,8 +8462,7 @@ static void btrfs_submit_direct(struct bio *dio_bio, struct inode *inode,
dio_data->unsubmitted_oe_range_end;
}
- ret = btrfs_submit_direct_hook(dio_bio->bi_op | dio_bio->bi_rw, dip,
- skip_sum);
+ ret = btrfs_submit_direct_hook(dip, skip_sum);
if (!ret)
return;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index dc56558..2100514 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -5995,7 +5995,7 @@ static noinline void btrfs_schedule_bio(struct btrfs_root *root,
static void submit_stripe_bio(struct btrfs_root *root, struct btrfs_bio *bbio,
struct bio *bio, u64 physical, int dev_nr,
- int rw, int async)
+ int async)
{
struct btrfs_device *dev = bbio->stripes[dev_nr].dev;
@@ -6040,7 +6040,7 @@ static void bbio_error(struct btrfs_bio *bbio, struct bio *bio, u64 logical)
}
}
-int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
+int btrfs_map_bio(struct btrfs_root *root, struct bio *bio,
int mirror_num, int async_submit)
{
struct btrfs_device *dev;
@@ -6107,7 +6107,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
bio = first_bio;
submit_stripe_bio(root, bbio, bio,
- bbio->stripes[dev_nr].physical, dev_nr, rw,
+ bbio->stripes[dev_nr].physical, dev_nr,
async_submit);
}
btrfs_bio_counter_dec(root->fs_info);
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index c64229e..372974d0 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -437,7 +437,7 @@ int btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
struct btrfs_root *extent_root, u64 type);
void btrfs_mapping_init(struct btrfs_mapping_tree *tree);
void btrfs_mapping_tree_free(struct btrfs_mapping_tree *tree);
-int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
+int btrfs_map_bio(struct btrfs_root *root, struct bio *bio,
int mirror_num, int async_submit);
int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
fmode_t flags, void *holder);
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 11/42] f2fs: set bi_op to REQ_OP |
| Message-ID | <rnz7d-6su-37@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This patch has f2fs use bio->bi_op for REQ_OPs and rq_flag_bits to bio->bi_rw.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/f2fs/checkpoint.c | 10 ++++++----
fs/f2fs/data.c | 33 ++++++++++++++++++++-------------
fs/f2fs/f2fs.h | 5 +++--
fs/f2fs/gc.c | 9 ++++++---
fs/f2fs/inline.c | 3 ++-
fs/f2fs/node.c | 8 +++++---
fs/f2fs/segment.c | 10 +++++++---
fs/f2fs/trace.c | 7 ++++---
include/trace/events/f2fs.h | 34 +++++++++++++++++++++-------------
9 files changed, 74 insertions(+), 45 deletions(-)
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index b92782f..6f9dc16 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -55,14 +55,15 @@ static struct page *__get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index,
struct f2fs_io_info fio = {
.sbi = sbi,
.type = META,
- .rw = READ_SYNC | REQ_META | REQ_PRIO,
+ .op = REQ_OP_READ,
+ .op_flags = READ_SYNC | REQ_META | REQ_PRIO,
.old_blkaddr = index,
.new_blkaddr = index,
.encrypted_page = NULL,
};
if (unlikely(!is_meta))
- fio.rw &= ~REQ_META;
+ fio.op_flags &= ~REQ_META;
repeat:
page = grab_cache_page(mapping, index);
if (!page) {
@@ -149,13 +150,14 @@ int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
struct f2fs_io_info fio = {
.sbi = sbi,
.type = META,
- .rw = sync ? (READ_SYNC | REQ_META | REQ_PRIO) : READA,
+ .op = REQ_OP_READ,
+ .op_flags = sync ? (READ_SYNC | REQ_META | REQ_PRIO) : READA,
.encrypted_page = NULL,
};
struct blk_plug plug;
if (unlikely(type == META_POR))
- fio.rw &= ~REQ_META;
+ fio.op_flags &= ~REQ_META;
blk_start_plug(&plug);
for (; nrpages-- > 0; blkno++) {
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 74cf5cb..03b6362 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -105,11 +105,12 @@ static void __submit_merged_bio(struct f2fs_bio_info *io)
if (!io->bio)
return;
- if (is_read_io(fio->rw))
+ if (is_read_io(fio->op))
trace_f2fs_submit_read_bio(io->sbi->sb, fio, io->bio);
else
trace_f2fs_submit_write_bio(io->sbi->sb, fio, io->bio);
- io->bio->bi_rw = fio->rw;
+ io->bio->bi_op = fio->op;
+ io->bio->bi_rw = fio->op_flags;
submit_bio(io->bio);
io->bio = NULL;
@@ -177,10 +178,12 @@ static void __f2fs_submit_merged_bio(struct f2fs_sb_info *sbi,
/* change META to META_FLUSH in the checkpoint procedure */
if (type >= META_FLUSH) {
io->fio.type = META_FLUSH;
+ io->fio.op = REQ_OP_WRITE;
if (test_opt(sbi, NOBARRIER))
- io->fio.rw = WRITE_FLUSH | REQ_META | REQ_PRIO;
+ io->fio.op_flags = WRITE_FLUSH | REQ_META | REQ_PRIO;
else
- io->fio.rw = WRITE_FLUSH_FUA | REQ_META | REQ_PRIO;
+ io->fio.op_flags = WRITE_FLUSH_FUA | REQ_META |
+ REQ_PRIO;
}
__submit_merged_bio(io);
out:
@@ -222,13 +225,14 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
f2fs_trace_ios(fio, 0);
/* Allocate a new bio */
- bio = __bio_alloc(fio->sbi, fio->new_blkaddr, 1, is_read_io(fio->rw));
+ bio = __bio_alloc(fio->sbi, fio->new_blkaddr, 1, is_read_io(fio->op));
if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE) {
bio_put(bio);
return -EFAULT;
}
- bio->bi_rw = fio->rw;
+ bio->bi_op = fio->op;
+ bio->bi_rw = fio->op_flags;
submit_bio(bio);
return 0;
@@ -239,7 +243,7 @@ void f2fs_submit_page_mbio(struct f2fs_io_info *fio)
struct f2fs_sb_info *sbi = fio->sbi;
enum page_type btype = PAGE_TYPE_OF_BIO(fio->type);
struct f2fs_bio_info *io;
- bool is_read = is_read_io(fio->rw);
+ bool is_read = is_read_io(fio->op);
struct page *bio_page;
io = is_read ? &sbi->read_io : &sbi->write_io[btype];
@@ -254,7 +258,7 @@ void f2fs_submit_page_mbio(struct f2fs_io_info *fio)
inc_page_count(sbi, F2FS_WRITEBACK);
if (io->bio && (io->last_block_in_bio != fio->new_blkaddr - 1 ||
- io->fio.rw != fio->rw))
+ (io->fio.op != fio->op || io->fio.op_flags != fio->op_flags)))
__submit_merged_bio(io);
alloc_new:
if (io->bio == NULL) {
@@ -359,7 +363,7 @@ int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index)
}
struct page *get_read_data_page(struct inode *inode, pgoff_t index,
- int rw, bool for_write)
+ int op_flags, bool for_write)
{
struct address_space *mapping = inode->i_mapping;
struct dnode_of_data dn;
@@ -369,7 +373,8 @@ struct page *get_read_data_page(struct inode *inode, pgoff_t index,
struct f2fs_io_info fio = {
.sbi = F2FS_I_SB(inode),
.type = DATA,
- .rw = rw,
+ .op = REQ_OP_READ,
+ .op_flags = op_flags,
.encrypted_page = NULL,
};
@@ -1014,7 +1019,7 @@ submit_and_realloc:
bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(block_nr);
bio->bi_end_io = f2fs_read_end_io;
bio->bi_private = ctx;
- bio->bi_rw = READ;
+ bio->bi_op = REQ_OP_READ;
}
if (bio_add_page(bio, page, blocksize, 0) < blocksize)
@@ -1156,7 +1161,8 @@ static int f2fs_write_data_page(struct page *page,
struct f2fs_io_info fio = {
.sbi = sbi,
.type = DATA,
- .rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : WRITE,
+ .op = REQ_OP_WRITE,
+ .op_flags = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : 0,
.page = page,
.encrypted_page = NULL,
};
@@ -1594,7 +1600,8 @@ repeat:
struct f2fs_io_info fio = {
.sbi = sbi,
.type = DATA,
- .rw = READ_SYNC,
+ .op = REQ_OP_READ,
+ .op_flags = READ_SYNC,
.old_blkaddr = blkaddr,
.new_blkaddr = blkaddr,
.page = page,
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 3f15513..bc488e2 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -636,14 +636,15 @@ enum page_type {
struct f2fs_io_info {
struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
- int rw; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */
+ int op; /* contains REQ_OP_ */
+ int op_flags; /* rq_flag_bits */
block_t new_blkaddr; /* new block address to be written */
block_t old_blkaddr; /* old block address before Cow */
struct page *page; /* page to be written */
struct page *encrypted_page; /* encrypted page */
};
-#define is_read_io(rw) (((rw) & 1) == READ)
+#define is_read_io(rw) (rw == READ)
struct f2fs_bio_info {
struct f2fs_sb_info *sbi; /* f2fs superblock */
struct bio *bio; /* bios to merge */
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index b0051a9..fbd4b88 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -546,7 +546,8 @@ static void move_encrypted_block(struct inode *inode, block_t bidx)
struct f2fs_io_info fio = {
.sbi = F2FS_I_SB(inode),
.type = DATA,
- .rw = READ_SYNC,
+ .op = REQ_OP_READ,
+ .op_flags = READ_SYNC,
.encrypted_page = NULL,
};
struct dnode_of_data dn;
@@ -620,7 +621,8 @@ static void move_encrypted_block(struct inode *inode, block_t bidx)
/* allocate block address */
f2fs_wait_on_page_writeback(dn.node_page, NODE, true);
- fio.rw = WRITE_SYNC;
+ fio.op = REQ_OP_WRITE;
+ fio.op_flags = WRITE_SYNC;
fio.new_blkaddr = newaddr;
f2fs_submit_page_mbio(&fio);
@@ -657,7 +659,8 @@ static void move_data_page(struct inode *inode, block_t bidx, int gc_type)
struct f2fs_io_info fio = {
.sbi = F2FS_I_SB(inode),
.type = DATA,
- .rw = WRITE_SYNC,
+ .op = REQ_OP_WRITE,
+ .op_flags = WRITE_SYNC,
.page = page,
.encrypted_page = NULL,
};
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 7720565..d3f7292 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -108,7 +108,8 @@ int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page)
struct f2fs_io_info fio = {
.sbi = F2FS_I_SB(dn->inode),
.type = DATA,
- .rw = WRITE_SYNC | REQ_PRIO,
+ .op = REQ_OP_WRITE,
+ .op_flags = WRITE_SYNC | REQ_PRIO,
.page = page,
.encrypted_page = NULL,
};
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 095fc2c..c6935c5 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1043,14 +1043,15 @@ fail:
* 0: f2fs_put_page(page, 0)
* LOCKED_PAGE or error: f2fs_put_page(page, 1)
*/
-static int read_node_page(struct page *page, int rw)
+static int read_node_page(struct page *page, int op_flags)
{
struct f2fs_sb_info *sbi = F2FS_P_SB(page);
struct node_info ni;
struct f2fs_io_info fio = {
.sbi = sbi,
.type = NODE,
- .rw = rw,
+ .op = REQ_OP_READ,
+ .op_flags = op_flags,
.page = page,
.encrypted_page = NULL,
};
@@ -1389,7 +1390,8 @@ static int f2fs_write_node_page(struct page *page,
struct f2fs_io_info fio = {
.sbi = sbi,
.type = NODE,
- .rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : WRITE,
+ .op = REQ_OP_WRITE,
+ .op_flags = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : 0,
.page = page,
.encrypted_page = NULL,
};
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 0928d57..e271f16 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -255,7 +255,8 @@ static int __commit_inmem_pages(struct inode *inode,
struct f2fs_io_info fio = {
.sbi = sbi,
.type = DATA,
- .rw = WRITE_SYNC | REQ_PRIO,
+ .op = REQ_OP_WRITE,
+ .op_flags = WRITE_SYNC | REQ_PRIO,
.encrypted_page = NULL,
};
bool submit_bio = false;
@@ -404,6 +405,7 @@ repeat:
fcc->dispatch_list = llist_reverse_order(fcc->dispatch_list);
bio->bi_bdev = sbi->sb->s_bdev;
+ bio->bi_op = REQ_OP_WRITE;
bio->bi_rw = WRITE_FLUSH;
ret = submit_bio_wait(bio);
@@ -437,6 +439,7 @@ int f2fs_issue_flush(struct f2fs_sb_info *sbi)
int ret;
bio->bi_bdev = sbi->sb->s_bdev;
+ bio->bi_op = REQ_OP_WRITE;
bio->bi_rw = WRITE_FLUSH;
ret = submit_bio_wait(bio);
bio_put(bio);
@@ -1401,7 +1404,8 @@ void write_meta_page(struct f2fs_sb_info *sbi, struct page *page)
struct f2fs_io_info fio = {
.sbi = sbi,
.type = META,
- .rw = WRITE_SYNC | REQ_META | REQ_PRIO,
+ .op = REQ_OP_WRITE,
+ .op_flags = WRITE_SYNC | REQ_META | REQ_PRIO,
.old_blkaddr = page->index,
.new_blkaddr = page->index,
.page = page,
@@ -1409,7 +1413,7 @@ void write_meta_page(struct f2fs_sb_info *sbi, struct page *page)
};
if (unlikely(page->index >= MAIN_BLKADDR(sbi)))
- fio.rw &= ~REQ_META;
+ fio.op_flags &= ~REQ_META;
set_page_writeback(page);
f2fs_submit_page_mbio(&fio);
diff --git a/fs/f2fs/trace.c b/fs/f2fs/trace.c
index 562ce08..73b4e1d 100644
--- a/fs/f2fs/trace.c
+++ b/fs/f2fs/trace.c
@@ -25,11 +25,11 @@ static inline void __print_last_io(void)
if (!last_io.len)
return;
- trace_printk("%3x:%3x %4x %-16s %2x %5x %12x %4x\n",
+ trace_printk("%3x:%3x %4x %-16s %2x %5x %5x %12x %4x\n",
last_io.major, last_io.minor,
last_io.pid, "----------------",
last_io.type,
- last_io.fio.rw,
+ last_io.fio.op, last_io.fio.op_flags,
last_io.fio.new_blkaddr,
last_io.len);
memset(&last_io, 0, sizeof(last_io));
@@ -101,7 +101,8 @@ void f2fs_trace_ios(struct f2fs_io_info *fio, int flush)
if (last_io.major == major && last_io.minor == minor &&
last_io.pid == pid &&
last_io.type == __file_type(inode, pid) &&
- last_io.fio.rw == fio->rw &&
+ last_io.fio.op == fio->op &&
+ last_io.fio.op_flags == fio->op_flags &&
last_io.fio.new_blkaddr + last_io.len ==
fio->new_blkaddr) {
last_io.len++;
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 0f56584..db75d69 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -56,17 +56,21 @@ TRACE_DEFINE_ENUM(CP_DISCARD);
{ IPU, "IN-PLACE" }, \
{ OPU, "OUT-OF-PLACE" })
-#define F2FS_BIO_MASK(t) (t & (READA | WRITE_FLUSH_FUA))
+#define F2FS_BIO_FLAG_MASK(t) (t & (READA | WRITE_FLUSH_FUA))
#define F2FS_BIO_EXTRA_MASK(t) (t & (REQ_META | REQ_PRIO))
-#define show_bio_type(type) show_bio_base(type), show_bio_extra(type)
+#define show_bio_type(op, op_flags) show_bio_op(op), \
+ show_bio_op_flags(op_flags), show_bio_extra(op_flags)
-#define show_bio_base(type) \
- __print_symbolic(F2FS_BIO_MASK(type), \
+#define show_bio_op(op) \
+ __print_symbolic(op, \
{ READ, "READ" }, \
+ { WRITE, "WRITE" })
+
+#define show_bio_op_flags(flags) \
+ __print_symbolic(F2FS_BIO_FLAG_MASK(flags), \
{ READA, "READAHEAD" }, \
{ READ_SYNC, "READ_SYNC" }, \
- { WRITE, "WRITE" }, \
{ WRITE_SYNC, "WRITE_SYNC" }, \
{ WRITE_FLUSH, "WRITE_FLUSH" }, \
{ WRITE_FUA, "WRITE_FUA" }, \
@@ -730,7 +734,8 @@ DECLARE_EVENT_CLASS(f2fs__submit_page_bio,
__field(pgoff_t, index)
__field(block_t, old_blkaddr)
__field(block_t, new_blkaddr)
- __field(int, rw)
+ __field(int, op)
+ __field(int, op_flags)
__field(int, type)
),
@@ -740,17 +745,18 @@ DECLARE_EVENT_CLASS(f2fs__submit_page_bio,
__entry->index = page->index;
__entry->old_blkaddr = fio->old_blkaddr;
__entry->new_blkaddr = fio->new_blkaddr;
- __entry->rw = fio->rw;
+ __entry->op = fio->op;
+ __entry->op_flags = fio->op_flags;
__entry->type = fio->type;
),
TP_printk("dev = (%d,%d), ino = %lu, page_index = 0x%lx, "
- "oldaddr = 0x%llx, newaddr = 0x%llx rw = %s%s, type = %s",
+ "oldaddr = 0x%llx, newaddr = 0x%llx rw = %s%si%s, type = %s",
show_dev_ino(__entry),
(unsigned long)__entry->index,
(unsigned long long)__entry->old_blkaddr,
(unsigned long long)__entry->new_blkaddr,
- show_bio_type(__entry->rw),
+ show_bio_type(__entry->op, __entry->op_flags),
show_block_type(__entry->type))
);
@@ -781,7 +787,8 @@ DECLARE_EVENT_CLASS(f2fs__submit_bio,
TP_STRUCT__entry(
__field(dev_t, dev)
- __field(int, rw)
+ __field(int, op)
+ __field(int, op_flags)
__field(int, type)
__field(sector_t, sector)
__field(unsigned int, size)
@@ -789,15 +796,16 @@ DECLARE_EVENT_CLASS(f2fs__submit_bio,
TP_fast_assign(
__entry->dev = sb->s_dev;
- __entry->rw = fio->rw;
+ __entry->op = fio->op;
+ __entry->op_flags = fio->op_flags;
__entry->type = fio->type;
__entry->sector = bio->bi_iter.bi_sector;
__entry->size = bio->bi_iter.bi_size;
),
- TP_printk("dev = (%d,%d), %s%s, %s, sector = %lld, size = %u",
+ TP_printk("dev = (%d,%d), %s%s%s, %s, sector = %lld, size = %u",
show_dev(__entry),
- show_bio_type(__entry->rw),
+ show_bio_type(__entry->op, __entry->op_flags),
show_block_type(__entry->type),
(unsigned long long)__entry->sector,
__entry->size)
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 17/42] ocfs2: set bi_op to REQ_OP |
| Message-ID | <rnz7d-6su-45@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This patch has ocfs2 use bio->bi_op for REQ_OPs and rq_flag_bits
to bio->bi_rw.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/ocfs2/cluster/heartbeat.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index e37373d..0619a20 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -530,7 +530,8 @@ static void o2hb_bio_end_io(struct bio *bio)
static struct bio *o2hb_setup_one_bio(struct o2hb_region *reg,
struct o2hb_bio_wait_ctxt *wc,
unsigned int *current_slot,
- unsigned int max_slots, int rw)
+ unsigned int max_slots, int op,
+ int op_flags)
{
int len, current_page;
unsigned int vec_len, vec_start;
@@ -556,7 +557,8 @@ static struct bio *o2hb_setup_one_bio(struct o2hb_region *reg,
bio->bi_bdev = reg->hr_bdev;
bio->bi_private = wc;
bio->bi_end_io = o2hb_bio_end_io;
- bio->bi_rw = rw;
+ bio->bi_op = op;
+ bio->bi_rw = op_flags;
vec_start = (cs << bits) % PAGE_SIZE;
while(cs < max_slots) {
@@ -593,7 +595,7 @@ static int o2hb_read_slots(struct o2hb_region *reg,
while(current_slot < max_slots) {
bio = o2hb_setup_one_bio(reg, &wc, ¤t_slot, max_slots,
- READ);
+ REQ_OP_READ, 0);
if (IS_ERR(bio)) {
status = PTR_ERR(bio);
mlog_errno(status);
@@ -625,7 +627,8 @@ static int o2hb_issue_node_write(struct o2hb_region *reg,
slot = o2nm_this_node();
- bio = o2hb_setup_one_bio(reg, write_wc, &slot, slot+1, WRITE_SYNC);
+ bio = o2hb_setup_one_bio(reg, write_wc, &slot, slot+1, REQ_OP_WRITE,
+ WRITE_SYNC);
if (IS_ERR(bio)) {
status = PTR_ERR(bio);
mlog_errno(status);
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 09/42] btrfs: update __btrfs_map_block for bi_op transition |
| Message-ID | <rnz7e-6su-47@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
We no longer pass in a bitmap of rq_flag_bits bits to __btrfs_map_block.
It will always be a REQ_OP, or the btrfs specific REQ_GET_READ_MIRRORS,
so this drops the bit tests.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/btrfs/extent-tree.c | 2 +-
fs/btrfs/inode.c | 2 +-
fs/btrfs/volumes.c | 55 +++++++++++++++++++++++++++-----------------------
fs/btrfs/volumes.h | 4 ++--
4 files changed, 34 insertions(+), 29 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 99decfb..f4bc8c1 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2053,7 +2053,7 @@ int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,
/* Tell the block device(s) that the sectors can be discarded */
- ret = btrfs_map_block(root->fs_info, REQ_DISCARD,
+ ret = btrfs_map_block(root->fs_info, REQ_OP_DISCARD,
bytenr, &num_bytes, &bbio, 0);
/* Error condition is -ENOMEM */
if (!ret) {
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index f693490..c2dc75b 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8300,7 +8300,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
int i;
map_length = orig_bio->bi_iter.bi_size;
- ret = btrfs_map_block(root->fs_info, rw, start_sector << 9,
+ ret = btrfs_map_block(root->fs_info, orig_bio->bi_op, start_sector << 9,
&map_length, NULL, 0);
if (ret)
return -EIO;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 96fdf4b..dc56558 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -5212,7 +5212,7 @@ void btrfs_put_bbio(struct btrfs_bio *bbio)
kfree(bbio);
}
-static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
+static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int op,
u64 logical, u64 *length,
struct btrfs_bio **bbio_ret,
int mirror_num, int need_raid_map)
@@ -5290,7 +5290,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
raid56_full_stripe_start *= full_stripe_len;
}
- if (rw & REQ_DISCARD) {
+ if (op == REQ_OP_DISCARD) {
/* we don't discard raid56 yet */
if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
ret = -EOPNOTSUPP;
@@ -5303,7 +5303,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
For other RAID types and for RAID[56] reads, just allow a single
stripe (on a single disk). */
if ((map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) &&
- (rw & REQ_WRITE)) {
+ (op == REQ_OP_WRITE)) {
max_len = stripe_len * nr_data_stripes(map) -
(offset - raid56_full_stripe_start);
} else {
@@ -5328,8 +5328,8 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
btrfs_dev_replace_set_lock_blocking(dev_replace);
if (dev_replace_is_ongoing && mirror_num == map->num_stripes + 1 &&
- !(rw & (REQ_WRITE | REQ_DISCARD | REQ_GET_READ_MIRRORS)) &&
- dev_replace->tgtdev != NULL) {
+ op != REQ_OP_WRITE && op != REQ_OP_DISCARD &&
+ op != REQ_GET_READ_MIRRORS && dev_replace->tgtdev != NULL) {
/*
* in dev-replace case, for repair case (that's the only
* case where the mirror is selected explicitly when
@@ -5416,15 +5416,17 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
(offset + *length);
if (map->type & BTRFS_BLOCK_GROUP_RAID0) {
- if (rw & REQ_DISCARD)
+ if (op == REQ_OP_DISCARD)
num_stripes = min_t(u64, map->num_stripes,
stripe_nr_end - stripe_nr_orig);
stripe_nr = div_u64_rem(stripe_nr, map->num_stripes,
&stripe_index);
- if (!(rw & (REQ_WRITE | REQ_DISCARD | REQ_GET_READ_MIRRORS)))
+ if (op != REQ_OP_WRITE && op != REQ_OP_DISCARD &&
+ op != REQ_GET_READ_MIRRORS)
mirror_num = 1;
} else if (map->type & BTRFS_BLOCK_GROUP_RAID1) {
- if (rw & (REQ_WRITE | REQ_DISCARD | REQ_GET_READ_MIRRORS))
+ if (op == REQ_OP_WRITE || op == REQ_OP_DISCARD ||
+ op == REQ_GET_READ_MIRRORS)
num_stripes = map->num_stripes;
else if (mirror_num)
stripe_index = mirror_num - 1;
@@ -5437,7 +5439,8 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
}
} else if (map->type & BTRFS_BLOCK_GROUP_DUP) {
- if (rw & (REQ_WRITE | REQ_DISCARD | REQ_GET_READ_MIRRORS)) {
+ if (op == REQ_OP_WRITE || REQ_OP_DISCARD ||
+ op == REQ_GET_READ_MIRRORS) {
num_stripes = map->num_stripes;
} else if (mirror_num) {
stripe_index = mirror_num - 1;
@@ -5451,9 +5454,9 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
stripe_nr = div_u64_rem(stripe_nr, factor, &stripe_index);
stripe_index *= map->sub_stripes;
- if (rw & (REQ_WRITE | REQ_GET_READ_MIRRORS))
+ if (op == REQ_OP_WRITE || op == REQ_GET_READ_MIRRORS)
num_stripes = map->sub_stripes;
- else if (rw & REQ_DISCARD)
+ else if (op == REQ_OP_DISCARD)
num_stripes = min_t(u64, map->sub_stripes *
(stripe_nr_end - stripe_nr_orig),
map->num_stripes);
@@ -5471,7 +5474,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
} else if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
if (need_raid_map &&
- ((rw & (REQ_WRITE | REQ_GET_READ_MIRRORS)) ||
+ (op == REQ_OP_WRITE || op == REQ_GET_READ_MIRRORS ||
mirror_num > 1)) {
/* push stripe_nr back to the start of the full stripe */
stripe_nr = div_u64(raid56_full_stripe_start,
@@ -5499,8 +5502,8 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
/* We distribute the parity blocks across stripes */
div_u64_rem(stripe_nr + stripe_index, map->num_stripes,
&stripe_index);
- if (!(rw & (REQ_WRITE | REQ_DISCARD |
- REQ_GET_READ_MIRRORS)) && mirror_num <= 1)
+ if ((op != REQ_OP_WRITE && op != REQ_OP_DISCARD &&
+ op != REQ_GET_READ_MIRRORS) && mirror_num <= 1)
mirror_num = 1;
}
} else {
@@ -5517,9 +5520,9 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
num_alloc_stripes = num_stripes;
if (dev_replace_is_ongoing) {
- if (rw & (REQ_WRITE | REQ_DISCARD))
+ if (op == REQ_OP_WRITE || op == REQ_OP_DISCARD)
num_alloc_stripes <<= 1;
- if (rw & REQ_GET_READ_MIRRORS)
+ if (op == REQ_GET_READ_MIRRORS)
num_alloc_stripes++;
tgtdev_indexes = num_stripes;
}
@@ -5534,7 +5537,8 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
/* build raid_map */
if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK &&
- need_raid_map && ((rw & (REQ_WRITE | REQ_GET_READ_MIRRORS)) ||
+ need_raid_map &&
+ ((op == REQ_OP_WRITE || op == REQ_GET_READ_MIRRORS) ||
mirror_num > 1)) {
u64 tmp;
unsigned rot;
@@ -5559,7 +5563,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
RAID6_Q_STRIPE;
}
- if (rw & REQ_DISCARD) {
+ if (op == REQ_OP_DISCARD) {
u32 factor = 0;
u32 sub_stripes = 0;
u64 stripes_per_dev = 0;
@@ -5639,14 +5643,15 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
}
}
- if (rw & (REQ_WRITE | REQ_GET_READ_MIRRORS))
+ if (op == REQ_OP_WRITE || op == REQ_GET_READ_MIRRORS)
max_errors = btrfs_chunk_max_errors(map);
if (bbio->raid_map)
sort_parity_stripes(bbio, num_stripes);
tgtdev_indexes = 0;
- if (dev_replace_is_ongoing && (rw & (REQ_WRITE | REQ_DISCARD)) &&
+ if (dev_replace_is_ongoing &&
+ (op == REQ_OP_WRITE || op == REQ_OP_DISCARD) &&
dev_replace->tgtdev != NULL) {
int index_where_to_add;
u64 srcdev_devid = dev_replace->srcdev->devid;
@@ -5681,7 +5686,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
}
}
num_stripes = index_where_to_add;
- } else if (dev_replace_is_ongoing && (rw & REQ_GET_READ_MIRRORS) &&
+ } else if (dev_replace_is_ongoing && (op == REQ_GET_READ_MIRRORS) &&
dev_replace->tgtdev != NULL) {
u64 srcdev_devid = dev_replace->srcdev->devid;
int index_srcdev = 0;
@@ -5756,21 +5761,21 @@ out:
return ret;
}
-int btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
+int btrfs_map_block(struct btrfs_fs_info *fs_info, int op,
u64 logical, u64 *length,
struct btrfs_bio **bbio_ret, int mirror_num)
{
- return __btrfs_map_block(fs_info, rw, logical, length, bbio_ret,
+ return __btrfs_map_block(fs_info, op, logical, length, bbio_ret,
mirror_num, 0);
}
/* For Scrub/replace */
-int btrfs_map_sblock(struct btrfs_fs_info *fs_info, int rw,
+int btrfs_map_sblock(struct btrfs_fs_info *fs_info, int op,
u64 logical, u64 *length,
struct btrfs_bio **bbio_ret, int mirror_num,
int need_raid_map)
{
- return __btrfs_map_block(fs_info, rw, logical, length, bbio_ret,
+ return __btrfs_map_block(fs_info, op, logical, length, bbio_ret,
mirror_num, need_raid_map);
}
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index febdb7b..c64229e 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -421,10 +421,10 @@ int btrfs_account_dev_extents_size(struct btrfs_device *device, u64 start,
u64 end, u64 *length);
void btrfs_get_bbio(struct btrfs_bio *bbio);
void btrfs_put_bbio(struct btrfs_bio *bbio);
-int btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
+int btrfs_map_block(struct btrfs_fs_info *fs_info, int op,
u64 logical, u64 *length,
struct btrfs_bio **bbio_ret, int mirror_num);
-int btrfs_map_sblock(struct btrfs_fs_info *fs_info, int rw,
+int btrfs_map_sblock(struct btrfs_fs_info *fs_info, int op,
u64 logical, u64 *length,
struct btrfs_bio **bbio_ret, int mirror_num,
int need_raid_map);
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 24/42] xen: set bi_op to REQ_OP |
| Message-ID | <rnz7e-6su-49@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This patch has the xen block driver use bio->bi_op for REQ_OPs and rq_flag_bits
to bio->bi_rw.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
drivers/block/xen-blkback/blkback.c | 29 +++++++++++++++++------------
1 file changed, 17 insertions(+), 12 deletions(-)
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index 79fe493..854ecca 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -501,7 +501,7 @@ static int xen_vbd_translate(struct phys_req *req, struct xen_blkif *blkif,
struct xen_vbd *vbd = &blkif->vbd;
int rc = -EACCES;
- if ((operation != READ) && vbd->readonly)
+ if ((operation != REQ_OP_READ) && vbd->readonly)
goto out;
if (likely(req->nr_sects)) {
@@ -1014,7 +1014,7 @@ static int dispatch_discard_io(struct xen_blkif_ring *ring,
preq.sector_number = req->u.discard.sector_number;
preq.nr_sects = req->u.discard.nr_sectors;
- err = xen_vbd_translate(&preq, blkif, WRITE);
+ err = xen_vbd_translate(&preq, blkif, REQ_OP_WRITE);
if (err) {
pr_warn("access denied: DISCARD [%llu->%llu] on dev=%04x\n",
preq.sector_number,
@@ -1229,6 +1229,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
struct bio **biolist = pending_req->biolist;
int i, nbio = 0;
int operation;
+ int operation_flags = 0;
struct blk_plug plug;
bool drain = false;
struct grant_page **pages = pending_req->segments;
@@ -1247,17 +1248,19 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
switch (req_operation) {
case BLKIF_OP_READ:
ring->st_rd_req++;
- operation = READ;
+ operation = REQ_OP_READ;
break;
case BLKIF_OP_WRITE:
ring->st_wr_req++;
- operation = WRITE_ODIRECT;
+ operation = REQ_OP_WRITE;
+ operation_flags = WRITE_ODIRECT;
break;
case BLKIF_OP_WRITE_BARRIER:
drain = true;
case BLKIF_OP_FLUSH_DISKCACHE:
ring->st_f_req++;
- operation = WRITE_FLUSH;
+ operation = REQ_OP_WRITE;
+ operation_flags = WRITE_FLUSH;
break;
default:
operation = 0; /* make gcc happy */
@@ -1269,7 +1272,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
nseg = req->operation == BLKIF_OP_INDIRECT ?
req->u.indirect.nr_segments : req->u.rw.nr_segments;
- if (unlikely(nseg == 0 && operation != WRITE_FLUSH) ||
+ if (unlikely(nseg == 0 && operation_flags != WRITE_FLUSH) ||
unlikely((req->operation != BLKIF_OP_INDIRECT) &&
(nseg > BLKIF_MAX_SEGMENTS_PER_REQUEST)) ||
unlikely((req->operation == BLKIF_OP_INDIRECT) &&
@@ -1310,7 +1313,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
if (xen_vbd_translate(&preq, ring->blkif, operation) != 0) {
pr_debug("access denied: %s of [%llu,%llu] on dev=%04x\n",
- operation == READ ? "read" : "write",
+ operation == REQ_OP_READ ? "read" : "write",
preq.sector_number,
preq.sector_number + preq.nr_sects,
ring->blkif->vbd.pdevice);
@@ -1369,7 +1372,8 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
bio->bi_private = pending_req;
bio->bi_end_io = end_block_io_op;
bio->bi_iter.bi_sector = preq.sector_number;
- bio->bi_rw = operation;
+ bio->bi_op = operation;
+ bio->bi_rw = operation_flags;
}
preq.sector_number += seg[i].nsec;
@@ -1377,7 +1381,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
/* This will be hit if the operation was a flush or discard. */
if (!bio) {
- BUG_ON(operation != WRITE_FLUSH);
+ BUG_ON(operation_flags != WRITE_FLUSH);
bio = bio_alloc(GFP_KERNEL, 0);
if (unlikely(bio == NULL))
@@ -1387,7 +1391,8 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
bio->bi_bdev = preq.bdev;
bio->bi_private = pending_req;
bio->bi_end_io = end_block_io_op;
- bio->bi_rw = operation;
+ bio->bi_op = operation;
+ bio->bi_rw = operation_flags;
}
atomic_set(&pending_req->pendcnt, nbio);
@@ -1399,9 +1404,9 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
/* Let the I/Os go.. */
blk_finish_plug(&plug);
- if (operation == READ)
+ if (operation == REQ_OP_READ)
ring->st_rd_sect += preq.nr_sects;
- else if (operation & WRITE)
+ else if (operation == REQ_OP_WRITE)
ring->st_wr_sect += preq.nr_sects;
return 0;
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:00 +0200 |
| Subject | [PATCH 19/42] dm: set bi_op to REQ_OP |
| Message-ID | <rnz7e-6su-51@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This patch has dm use bio->bi_op for REQ_OPs and rq_flag_bits
to bio->bi_rw.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
drivers/md/dm-bufio.c | 8 +++---
drivers/md/dm-crypt.c | 1 +
drivers/md/dm-io.c | 57 ++++++++++++++++++++++-------------------
drivers/md/dm-kcopyd.c | 25 +++++++++---------
drivers/md/dm-log-writes.c | 6 ++---
drivers/md/dm-log.c | 5 ++--
drivers/md/dm-raid1.c | 11 +++++---
drivers/md/dm-snap-persistent.c | 24 +++++++++--------
drivers/md/dm-thin.c | 7 ++---
drivers/md/dm.c | 1 +
include/linux/dm-io.h | 3 ++-
11 files changed, 82 insertions(+), 66 deletions(-)
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index 9d3ee7f..b6055f2 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -574,7 +574,8 @@ static void use_dmio(struct dm_buffer *b, int rw, sector_t block,
{
int r;
struct dm_io_request io_req = {
- .bi_rw = rw,
+ .bi_op = rw,
+ .bi_op_flags = 0,
.notify.fn = dmio_complete,
.notify.context = b,
.client = b->c->dm_io,
@@ -634,7 +635,7 @@ static void use_inline_bio(struct dm_buffer *b, int rw, sector_t block,
* the dm_buffer's inline bio is local to bufio.
*/
b->bio.bi_private = end_io;
- b->bio.bi_rw = rw;
+ b->bio.bi_op = rw;
/*
* We assume that if len >= PAGE_SIZE ptr is page-aligned.
@@ -1327,7 +1328,8 @@ EXPORT_SYMBOL_GPL(dm_bufio_write_dirty_buffers);
int dm_bufio_issue_flush(struct dm_bufio_client *c)
{
struct dm_io_request io_req = {
- .bi_rw = WRITE_FLUSH,
+ .bi_op = REQ_OP_WRITE,
+ .bi_op_flags = WRITE_FLUSH,
.mem.type = DM_IO_KMEM,
.mem.ptr.addr = NULL,
.client = c->dm_io,
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 4f3cb35..70fbf11 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -1136,6 +1136,7 @@ static void clone_init(struct dm_crypt_io *io, struct bio *clone)
clone->bi_private = io;
clone->bi_end_io = crypt_endio;
clone->bi_bdev = cc->dev->bdev;
+ clone->bi_op = io->base_bio->bi_op;
clone->bi_rw = io->base_bio->bi_rw;
}
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 50f17e3..0f723ca 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -278,8 +278,9 @@ static void km_dp_init(struct dpages *dp, void *data)
/*-----------------------------------------------------------------
* IO routines that accept a list of pages.
*---------------------------------------------------------------*/
-static void do_region(int rw, unsigned region, struct dm_io_region *where,
- struct dpages *dp, struct io *io)
+static void do_region(int op, int op_flags, unsigned region,
+ struct dm_io_region *where, struct dpages *dp,
+ struct io *io)
{
struct bio *bio;
struct page *page;
@@ -295,24 +296,25 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where,
/*
* Reject unsupported discard and write same requests.
*/
- if (rw & REQ_DISCARD)
+ if (op == REQ_OP_DISCARD)
special_cmd_max_sectors = q->limits.max_discard_sectors;
- else if (rw & REQ_WRITE_SAME)
+ else if (op == REQ_OP_WRITE_SAME)
special_cmd_max_sectors = q->limits.max_write_same_sectors;
- if ((rw & (REQ_DISCARD | REQ_WRITE_SAME)) && special_cmd_max_sectors == 0) {
+ if ((op == REQ_OP_DISCARD || op == REQ_OP_WRITE_SAME) &&
+ special_cmd_max_sectors == 0) {
dec_count(io, region, -EOPNOTSUPP);
return;
}
/*
- * where->count may be zero if rw holds a flush and we need to
+ * where->count may be zero if op holds a flush and we need to
* send a zero-sized flush.
*/
do {
/*
* Allocate a suitably sized-bio.
*/
- if ((rw & REQ_DISCARD) || (rw & REQ_WRITE_SAME))
+ if ((op == REQ_OP_DISCARD) || (op == REQ_OP_WRITE_SAME))
num_bvecs = 1;
else
num_bvecs = min_t(int, BIO_MAX_PAGES,
@@ -322,14 +324,15 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where,
bio->bi_iter.bi_sector = where->sector + (where->count - remaining);
bio->bi_bdev = where->bdev;
bio->bi_end_io = endio;
- bio->bi_rw = rw;
+ bio->bi_op = op;
+ bio->bi_rw = op_flags;
store_io_and_region_in_bio(bio, io, region);
- if (rw & REQ_DISCARD) {
+ if (op == REQ_OP_DISCARD) {
num_sectors = min_t(sector_t, special_cmd_max_sectors, remaining);
bio->bi_iter.bi_size = num_sectors << SECTOR_SHIFT;
remaining -= num_sectors;
- } else if (rw & REQ_WRITE_SAME) {
+ } else if (op == REQ_OP_WRITE_SAME) {
/*
* WRITE SAME only uses a single page.
*/
@@ -360,7 +363,7 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where,
} while (remaining);
}
-static void dispatch_io(int rw, unsigned int num_regions,
+static void dispatch_io(int op, int op_flags, unsigned int num_regions,
struct dm_io_region *where, struct dpages *dp,
struct io *io, int sync)
{
@@ -370,7 +373,7 @@ static void dispatch_io(int rw, unsigned int num_regions,
BUG_ON(num_regions > DM_IO_MAX_REGIONS);
if (sync)
- rw |= REQ_SYNC;
+ op_flags |= REQ_SYNC;
/*
* For multiple regions we need to be careful to rewind
@@ -378,8 +381,8 @@ static void dispatch_io(int rw, unsigned int num_regions,
*/
for (i = 0; i < num_regions; i++) {
*dp = old_pages;
- if (where[i].count || (rw & REQ_FLUSH))
- do_region(rw, i, where + i, dp, io);
+ if (where[i].count || (op_flags & REQ_FLUSH))
+ do_region(op, op_flags, i, where + i, dp, io);
}
/*
@@ -403,13 +406,13 @@ static void sync_io_complete(unsigned long error, void *context)
}
static int sync_io(struct dm_io_client *client, unsigned int num_regions,
- struct dm_io_region *where, int rw, struct dpages *dp,
- unsigned long *error_bits)
+ struct dm_io_region *where, int op, int op_flags,
+ struct dpages *dp, unsigned long *error_bits)
{
struct io *io;
struct sync_io sio;
- if (num_regions > 1 && (rw & RW_MASK) != WRITE) {
+ if (num_regions > 1 && !op_is_write(op)) {
WARN_ON(1);
return -EIO;
}
@@ -426,7 +429,7 @@ static int sync_io(struct dm_io_client *client, unsigned int num_regions,
io->vma_invalidate_address = dp->vma_invalidate_address;
io->vma_invalidate_size = dp->vma_invalidate_size;
- dispatch_io(rw, num_regions, where, dp, io, 1);
+ dispatch_io(op, op_flags, num_regions, where, dp, io, 1);
wait_for_completion_io(&sio.wait);
@@ -437,12 +440,12 @@ static int sync_io(struct dm_io_client *client, unsigned int num_regions,
}
static int async_io(struct dm_io_client *client, unsigned int num_regions,
- struct dm_io_region *where, int rw, struct dpages *dp,
- io_notify_fn fn, void *context)
+ struct dm_io_region *where, int op, int op_flags,
+ struct dpages *dp, io_notify_fn fn, void *context)
{
struct io *io;
- if (num_regions > 1 && (rw & RW_MASK) != WRITE) {
+ if (num_regions > 1 && !op_is_write(op)) {
WARN_ON(1);
fn(1, context);
return -EIO;
@@ -458,7 +461,7 @@ static int async_io(struct dm_io_client *client, unsigned int num_regions,
io->vma_invalidate_address = dp->vma_invalidate_address;
io->vma_invalidate_size = dp->vma_invalidate_size;
- dispatch_io(rw, num_regions, where, dp, io, 0);
+ dispatch_io(op, op_flags, num_regions, where, dp, io, 0);
return 0;
}
@@ -481,7 +484,7 @@ static int dp_init(struct dm_io_request *io_req, struct dpages *dp,
case DM_IO_VMA:
flush_kernel_vmap_range(io_req->mem.ptr.vma, size);
- if ((io_req->bi_rw & RW_MASK) == READ) {
+ if (io_req->bi_op == REQ_OP_READ) {
dp->vma_invalidate_address = io_req->mem.ptr.vma;
dp->vma_invalidate_size = size;
}
@@ -519,10 +522,12 @@ int dm_io(struct dm_io_request *io_req, unsigned num_regions,
if (!io_req->notify.fn)
return sync_io(io_req->client, num_regions, where,
- io_req->bi_rw, &dp, sync_error_bits);
+ io_req->bi_op, io_req->bi_op_flags, &dp,
+ sync_error_bits);
- return async_io(io_req->client, num_regions, where, io_req->bi_rw,
- &dp, io_req->notify.fn, io_req->notify.context);
+ return async_io(io_req->client, num_regions, where, io_req->bi_op,
+ io_req->bi_op_flags, &dp, io_req->notify.fn,
+ io_req->notify.context);
}
EXPORT_SYMBOL(dm_io);
diff --git a/drivers/md/dm-kcopyd.c b/drivers/md/dm-kcopyd.c
index 1452ed9..4182bc7d 100644
--- a/drivers/md/dm-kcopyd.c
+++ b/drivers/md/dm-kcopyd.c
@@ -465,10 +465,10 @@ static void complete_io(unsigned long error, void *context)
io_job_finish(kc->throttle);
if (error) {
- if (job->rw & WRITE)
- job->write_err |= error;
- else
+ if (job->rw == READ)
job->read_err = 1;
+ else
+ job->write_err |= error;
if (!test_bit(DM_KCOPYD_IGNORE_ERROR, &job->flags)) {
push(&kc->complete_jobs, job);
@@ -477,13 +477,11 @@ static void complete_io(unsigned long error, void *context)
}
}
- if (job->rw & WRITE)
- push(&kc->complete_jobs, job);
-
- else {
+ if (job->rw == READ) {
job->rw = WRITE;
push(&kc->io_jobs, job);
- }
+ } else
+ push(&kc->complete_jobs, job);
wake(kc);
}
@@ -496,7 +494,8 @@ static int run_io_job(struct kcopyd_job *job)
{
int r;
struct dm_io_request io_req = {
- .bi_rw = job->rw,
+ .bi_op = job->rw,
+ .bi_op_flags = 0,
.mem.type = DM_IO_PAGE_LIST,
.mem.ptr.pl = job->pages,
.mem.offset = 0,
@@ -550,10 +549,10 @@ static int process_jobs(struct list_head *jobs, struct dm_kcopyd_client *kc,
if (r < 0) {
/* error this rogue job */
- if (job->rw & WRITE)
- job->write_err = (unsigned long) -1L;
- else
+ if (job->rw == READ)
job->read_err = 1;
+ else
+ job->write_err = (unsigned long) -1L;
push(&kc->complete_jobs, job);
break;
}
@@ -734,7 +733,7 @@ int dm_kcopyd_copy(struct dm_kcopyd_client *kc, struct dm_io_region *from,
/*
* Use WRITE SAME to optimize zeroing if all dests support it.
*/
- job->rw = WRITE | REQ_WRITE_SAME;
+ job->rw = REQ_OP_WRITE_SAME;
for (i = 0; i < job->num_dests; i++)
if (!bdev_write_same(job->dests[i].bdev)) {
job->rw = WRITE;
diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c
index addcc4b..27630c5 100644
--- a/drivers/md/dm-log-writes.c
+++ b/drivers/md/dm-log-writes.c
@@ -205,7 +205,7 @@ static int write_metadata(struct log_writes_c *lc, void *entry,
bio->bi_bdev = lc->logdev->bdev;
bio->bi_end_io = log_end_io;
bio->bi_private = lc;
- bio->bi_rw = WRITE;
+ bio->bi_op = REQ_OP_WRITE;
page = alloc_page(GFP_KERNEL);
if (!page) {
@@ -270,7 +270,7 @@ static int log_one_block(struct log_writes_c *lc,
bio->bi_bdev = lc->logdev->bdev;
bio->bi_end_io = log_end_io;
bio->bi_private = lc;
- bio->bi_rw = WRITE;
+ bio->bi_op = REQ_OP_WRITE;
for (i = 0; i < block->vec_cnt; i++) {
/*
@@ -292,7 +292,7 @@ static int log_one_block(struct log_writes_c *lc,
bio->bi_bdev = lc->logdev->bdev;
bio->bi_end_io = log_end_io;
bio->bi_private = lc;
- bio->bi_rw = WRITE;
+ bio->bi_op = REQ_OP_WRITE;
ret = bio_add_page(bio, block->vecs[i].bv_page,
block->vecs[i].bv_len, 0);
diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c
index 627d191..4ca2d1d 100644
--- a/drivers/md/dm-log.c
+++ b/drivers/md/dm-log.c
@@ -293,7 +293,7 @@ static void header_from_disk(struct log_header_core *core, struct log_header_dis
static int rw_header(struct log_c *lc, int rw)
{
- lc->io_req.bi_rw = rw;
+ lc->io_req.bi_op = rw;
return dm_io(&lc->io_req, 1, &lc->header_location, NULL);
}
@@ -306,7 +306,8 @@ static int flush_header(struct log_c *lc)
.count = 0,
};
- lc->io_req.bi_rw = WRITE_FLUSH;
+ lc->io_req.bi_op = REQ_OP_WRITE;
+ lc->io_req.bi_op_flags = WRITE_FLUSH;
return dm_io(&lc->io_req, 1, &null_location, NULL);
}
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index b3ccf1e..8a86bc3 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -260,7 +260,8 @@ static int mirror_flush(struct dm_target *ti)
struct dm_io_region io[ms->nr_mirrors];
struct mirror *m;
struct dm_io_request io_req = {
- .bi_rw = WRITE_FLUSH,
+ .bi_op = REQ_OP_WRITE,
+ .bi_op_flags = WRITE_FLUSH,
.mem.type = DM_IO_KMEM,
.mem.ptr.addr = NULL,
.client = ms->io_client,
@@ -541,7 +542,8 @@ static void read_async_bio(struct mirror *m, struct bio *bio)
{
struct dm_io_region io;
struct dm_io_request io_req = {
- .bi_rw = READ,
+ .bi_op = REQ_OP_READ,
+ .bi_op_flags = 0,
.mem.type = DM_IO_BIO,
.mem.ptr.bio = bio,
.notify.fn = read_callback,
@@ -654,7 +656,8 @@ static void do_write(struct mirror_set *ms, struct bio *bio)
struct dm_io_region io[ms->nr_mirrors], *dest = io;
struct mirror *m;
struct dm_io_request io_req = {
- .bi_rw = WRITE | (bio->bi_rw & WRITE_FLUSH_FUA),
+ .bi_op = REQ_OP_WRITE,
+ .bi_op_flags = bio->bi_rw & WRITE_FLUSH_FUA,
.mem.type = DM_IO_BIO,
.mem.ptr.bio = bio,
.notify.fn = write_callback,
@@ -663,7 +666,7 @@ static void do_write(struct mirror_set *ms, struct bio *bio)
};
if (bio->bi_rw & REQ_DISCARD) {
- io_req.bi_rw |= REQ_DISCARD;
+ io_req.bi_op = REQ_OP_DISCARD;
io_req.mem.type = DM_IO_KMEM;
io_req.mem.ptr.addr = NULL;
}
diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index 4d39093..b8cf956 100644
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -226,8 +226,8 @@ static void do_metadata(struct work_struct *work)
/*
* Read or write a chunk aligned and sized block of data from a device.
*/
-static int chunk_io(struct pstore *ps, void *area, chunk_t chunk, int rw,
- int metadata)
+static int chunk_io(struct pstore *ps, void *area, chunk_t chunk, int op,
+ int op_flags, int metadata)
{
struct dm_io_region where = {
.bdev = dm_snap_cow(ps->store->snap)->bdev,
@@ -235,7 +235,8 @@ static int chunk_io(struct pstore *ps, void *area, chunk_t chunk, int rw,
.count = ps->store->chunk_size,
};
struct dm_io_request io_req = {
- .bi_rw = rw,
+ .bi_op = op,
+ .bi_op_flags = op_flags,
.mem.type = DM_IO_VMA,
.mem.ptr.vma = area,
.client = ps->io_client,
@@ -281,14 +282,14 @@ static void skip_metadata(struct pstore *ps)
* Read or write a metadata area. Remembering to skip the first
* chunk which holds the header.
*/
-static int area_io(struct pstore *ps, int rw)
+static int area_io(struct pstore *ps, int op, int op_flags)
{
int r;
chunk_t chunk;
chunk = area_location(ps, ps->current_area);
- r = chunk_io(ps, ps->area, chunk, rw, 0);
+ r = chunk_io(ps, ps->area, chunk, op, op_flags, 0);
if (r)
return r;
@@ -302,7 +303,8 @@ static void zero_memory_area(struct pstore *ps)
static int zero_disk_area(struct pstore *ps, chunk_t area)
{
- return chunk_io(ps, ps->zero_area, area_location(ps, area), WRITE, 0);
+ return chunk_io(ps, ps->zero_area, area_location(ps, area),
+ REQ_OP_WRITE, 0, 0);
}
static int read_header(struct pstore *ps, int *new_snapshot)
@@ -334,7 +336,7 @@ static int read_header(struct pstore *ps, int *new_snapshot)
if (r)
return r;
- r = chunk_io(ps, ps->header_area, 0, READ, 1);
+ r = chunk_io(ps, ps->header_area, 0, REQ_OP_READ, 0, 1);
if (r)
goto bad;
@@ -395,7 +397,7 @@ static int write_header(struct pstore *ps)
dh->version = cpu_to_le32(ps->version);
dh->chunk_size = cpu_to_le32(ps->store->chunk_size);
- return chunk_io(ps, ps->header_area, 0, WRITE, 1);
+ return chunk_io(ps, ps->header_area, 0, REQ_OP_WRITE, 0, 1);
}
/*
@@ -739,7 +741,7 @@ static void persistent_commit_exception(struct dm_exception_store *store,
/*
* Commit exceptions to disk.
*/
- if (ps->valid && area_io(ps, WRITE_FLUSH_FUA))
+ if (ps->valid && area_io(ps, REQ_OP_WRITE, WRITE_FLUSH_FUA))
ps->valid = 0;
/*
@@ -779,7 +781,7 @@ static int persistent_prepare_merge(struct dm_exception_store *store,
return 0;
ps->current_area--;
- r = area_io(ps, READ);
+ r = area_io(ps, REQ_OP_READ, 0);
if (r < 0)
return r;
ps->current_committed = ps->exceptions_per_area;
@@ -816,7 +818,7 @@ static int persistent_commit_merge(struct dm_exception_store *store,
for (i = 0; i < nr_merged; i++)
clear_exception(ps, ps->current_committed - 1 - i);
- r = area_io(ps, WRITE_FLUSH_FUA);
+ r = area_io(ps, REQ_OP_WRITE, WRITE_FLUSH_FUA);
if (r < 0)
return r;
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 69d86e1..6049078 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -339,7 +339,7 @@ static int __blkdev_issue_discard_async(struct block_device *bdev, sector_t sect
struct bio *parent_bio)
{
struct request_queue *q = bdev_get_queue(bdev);
- int type = REQ_WRITE | REQ_DISCARD;
+ int op_flags = 0;
struct bio *bio;
if (!q || !nr_sects)
@@ -351,7 +351,7 @@ static int __blkdev_issue_discard_async(struct block_device *bdev, sector_t sect
if (flags & BLKDEV_DISCARD_SECURE) {
if (!blk_queue_secdiscard(q))
return -EOPNOTSUPP;
- type |= REQ_SECURE;
+ op_flags |= REQ_SECURE;
}
/*
@@ -366,7 +366,8 @@ static int __blkdev_issue_discard_async(struct block_device *bdev, sector_t sect
bio->bi_iter.bi_sector = sector;
bio->bi_bdev = bdev;
bio->bi_iter.bi_size = nr_sects << 9;
- bio->bi_rw = type;
+ bio->bi_op = REQ_OP_DISCARD;
+ bio->bi_rw = op_flags;
submit_bio(bio);
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 1b2f962..5432da7 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2412,6 +2412,7 @@ static struct mapped_device *alloc_dev(int minor)
bio_init(&md->flush_bio);
md->flush_bio.bi_bdev = md->bdev;
+ md->flush_bio.bi_op = REQ_OP_WRITE;
md->flush_bio.bi_rw = WRITE_FLUSH;
dm_stats_init(&md->stats);
diff --git a/include/linux/dm-io.h b/include/linux/dm-io.h
index a68cbe5..b91b023 100644
--- a/include/linux/dm-io.h
+++ b/include/linux/dm-io.h
@@ -57,7 +57,8 @@ struct dm_io_notify {
*/
struct dm_io_client;
struct dm_io_request {
- int bi_rw; /* READ|WRITE - not READA */
+ int bi_op; /* REQ_OP */
+ int bi_op_flags; /* rq_flag_bits */
struct dm_io_memory mem; /* Memory to use for io */
struct dm_io_notify notify; /* Synchronous if notify.fn is NULL */
struct dm_io_client *client; /* Client memory handler */
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:10 +0200 |
| Subject | [PATCH 06/42] direct-io: set bi_op to REQ_OP |
| Message-ID | <rnzgR-6Pc-1@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This patch has the dio code set the bio bi_op to a REQ_OP and bio op_flags
to rq_flag_bits.
It also begins to convert btrfs's dio_submit_t because of the dio submit_io
callout use. In the btrfs_submit_direct change, I OR'd the op and flag back
together. It is only temporary. The next patched will completely convert
all the btrfs code paths.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/btrfs/inode.c | 9 +++++----
fs/direct-io.c | 35 +++++++++++++++++++++--------------
include/linux/fs.h | 2 +-
3 files changed, 27 insertions(+), 19 deletions(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 9cc2256..d999fdf 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8401,14 +8401,14 @@ out_err:
return 0;
}
-static void btrfs_submit_direct(int rw, struct bio *dio_bio,
- struct inode *inode, loff_t file_offset)
+static void btrfs_submit_direct(struct bio *dio_bio, struct inode *inode,
+ loff_t file_offset)
{
struct btrfs_dio_private *dip = NULL;
struct bio *io_bio = NULL;
struct btrfs_io_bio *btrfs_bio;
int skip_sum;
- int write = rw & REQ_WRITE;
+ bool write = (dio_bio->bi_op == REQ_OP_WRITE);
int ret = 0;
skip_sum = BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM;
@@ -8459,7 +8459,8 @@ static void btrfs_submit_direct(int rw, struct bio *dio_bio,
dio_data->unsubmitted_oe_range_end;
}
- ret = btrfs_submit_direct_hook(rw, dip, skip_sum);
+ ret = btrfs_submit_direct_hook(dio_bio->bi_op | dio_bio->bi_rw, dip,
+ skip_sum);
if (!ret)
return;
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 1890ad2..64bfab0 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -108,7 +108,8 @@ struct dio_submit {
/* dio_state communicated between submission path and end_io */
struct dio {
int flags; /* doesn't change */
- int rw;
+ int op;
+ int op_flags;
blk_qc_t bio_cookie;
struct block_device *bio_bdev;
struct inode *inode;
@@ -163,7 +164,7 @@ static inline int dio_refill_pages(struct dio *dio, struct dio_submit *sdio)
ret = iov_iter_get_pages(sdio->iter, dio->pages, LONG_MAX, DIO_PAGES,
&sdio->from);
- if (ret < 0 && sdio->blocks_available && (dio->rw & WRITE)) {
+ if (ret < 0 && sdio->blocks_available && (dio->op == REQ_OP_WRITE)) {
struct page *page = ZERO_PAGE(0);
/*
* A memory fault, but the filesystem has some outstanding
@@ -242,7 +243,8 @@ static ssize_t dio_complete(struct dio *dio, loff_t offset, ssize_t ret,
transferred = dio->result;
/* Check for short read case */
- if ((dio->rw == READ) && ((offset + transferred) > dio->i_size))
+ if ((dio->op == REQ_OP_READ) &&
+ ((offset + transferred) > dio->i_size))
transferred = dio->i_size - offset;
}
@@ -265,7 +267,7 @@ static ssize_t dio_complete(struct dio *dio, loff_t offset, ssize_t ret,
inode_dio_end(dio->inode);
if (is_async) {
- if (dio->rw & WRITE) {
+ if (dio->op == REQ_OP_WRITE) {
int err;
err = generic_write_sync(dio->iocb->ki_filp, offset,
@@ -374,7 +376,8 @@ dio_bio_alloc(struct dio *dio, struct dio_submit *sdio,
bio->bi_bdev = bdev;
bio->bi_iter.bi_sector = first_sector;
- bio->bi_rw = dio->rw;
+ bio->bi_op = dio->op;
+ bio->bi_rw = dio->op_flags;
if (dio->is_async)
bio->bi_end_io = dio_bio_end_aio;
else
@@ -402,14 +405,13 @@ static inline void dio_bio_submit(struct dio *dio, struct dio_submit *sdio)
dio->refcount++;
spin_unlock_irqrestore(&dio->bio_lock, flags);
- if (dio->is_async && dio->rw == READ && dio->should_dirty)
+ if (dio->is_async && dio->op == REQ_OP_READ && dio->should_dirty)
bio_set_pages_dirty(bio);
dio->bio_bdev = bio->bi_bdev;
if (sdio->submit_io) {
- sdio->submit_io(dio->rw, bio, dio->inode,
- sdio->logical_offset_in_bio);
+ sdio->submit_io(bio, dio->inode, sdio->logical_offset_in_bio);
dio->bio_cookie = BLK_QC_T_NONE;
} else
dio->bio_cookie = submit_bio(bio);
@@ -478,14 +480,14 @@ static int dio_bio_complete(struct dio *dio, struct bio *bio)
if (bio->bi_error)
dio->io_error = -EIO;
- if (dio->is_async && dio->rw == READ && dio->should_dirty) {
+ if (dio->is_async && dio->op == REQ_OP_READ && dio->should_dirty) {
err = bio->bi_error;
bio_check_pages_dirty(bio); /* transfers ownership */
} else {
bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
- if (dio->rw == READ && !PageCompound(page) &&
+ if (dio->op == REQ_OP_READ && !PageCompound(page) &&
dio->should_dirty)
set_page_dirty_lock(page);
put_page(page);
@@ -638,7 +640,7 @@ static int get_more_blocks(struct dio *dio, struct dio_submit *sdio,
* which may decide to handle it or also return an unmapped
* buffer head.
*/
- create = dio->rw & WRITE;
+ create = dio->op == REQ_OP_WRITE;
if (dio->flags & DIO_SKIP_HOLES) {
if (sdio->block_in_file < (i_size_read(dio->inode) >>
sdio->blkbits))
@@ -788,7 +790,7 @@ submit_page_section(struct dio *dio, struct dio_submit *sdio, struct page *page,
{
int ret = 0;
- if (dio->rw & WRITE) {
+ if (dio->op == REQ_OP_WRITE) {
/*
* Read accounting is performed in submit_bio()
*/
@@ -988,7 +990,7 @@ do_holes:
loff_t i_size_aligned;
/* AKPM: eargh, -ENOTBLK is a hack */
- if (dio->rw & WRITE) {
+ if (dio->op == REQ_OP_WRITE) {
put_page(page);
return -ENOTBLK;
}
@@ -1201,7 +1203,12 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
dio->is_async = true;
dio->inode = inode;
- dio->rw = iov_iter_rw(iter) == WRITE ? WRITE_ODIRECT : READ;
+ if (iov_iter_rw(iter) == WRITE) {
+ dio->op = REQ_OP_WRITE;
+ dio->op_flags = WRITE_ODIRECT;
+ } else {
+ dio->op = REQ_OP_READ;
+ }
/*
* For AIO O_(D)SYNC writes we need to defer completions to a workqueue
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 96ace0f..f3f2f66 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2792,7 +2792,7 @@ extern int generic_file_open(struct inode * inode, struct file * filp);
extern int nonseekable_open(struct inode * inode, struct file * filp);
#ifdef CONFIG_BLOCK
-typedef void (dio_submit_t)(int rw, struct bio *bio, struct inode *inode,
+typedef void (dio_submit_t)(struct bio *bio, struct inode *inode,
loff_t file_offset);
enum {
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:10 +0200 |
| Subject | [PATCH 02/42] block: add REQ_OP definitions and bi_op/op fields |
| Message-ID | <rnzgS-6Pc-15@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
The following patches separate the operation (write, read, discard,
etc) from the rq_flag_bits flags. This patch adds definitions for
request/bio operations, adds fields to the request/bio to set them, and
some temporary compat code so the kernel/modules can use either one. In
the final patches this compat code will be removed when everything is converted.
In this patch the REQ_OPs match the REQ rq_flag_bits ones
for compat reasons while all the code is converted in this set. In the
last patches that will abe removed and the bi_op field will be
shrunk.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
block/blk-core.c | 19 ++++++++++++++++---
include/linux/blk_types.h | 15 ++++++++++++++-
include/linux/blkdev.h | 1 +
include/linux/fs.h | 37 +++++++++++++++++++++++++++++++++++--
4 files changed, 66 insertions(+), 6 deletions(-)
diff --git a/block/blk-core.c b/block/blk-core.c
index f3895c1..6bcc22e 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1698,7 +1698,8 @@ void init_request_from_bio(struct request *req, struct bio *bio)
{
req->cmd_type = REQ_TYPE_FS;
- req->cmd_flags |= bio->bi_rw & REQ_COMMON_MASK;
+ /* tmp compat. Allow users to set bi_op or bi_rw */
+ req->cmd_flags |= (bio->bi_rw | bio->bi_op) & REQ_COMMON_MASK;
if (bio->bi_rw & REQ_RAHEAD)
req->cmd_flags |= REQ_FAILFAST_MASK;
@@ -2033,6 +2034,12 @@ blk_qc_t generic_make_request(struct bio *bio)
struct bio_list bio_list_on_stack;
blk_qc_t ret = BLK_QC_T_NONE;
+ /* tmp compat. Allow users to set either one or both.
+ * This will be removed when we have converted
+ * everyone in the next patches.
+ */
+ bio->bi_rw |= bio->bi_op;
+
if (!generic_make_request_checks(bio))
goto out;
@@ -2102,6 +2109,12 @@ EXPORT_SYMBOL(generic_make_request);
*/
blk_qc_t submit_bio(struct bio *bio)
{
+ /* tmp compat. Allow users to set either one or both.
+ * This will be removed when we have converted
+ * everyone in the next patches.
+ */
+ bio->bi_rw |= bio->bi_op;
+
/*
* If it's a regular read/write or a barrier with data attached,
* go through the normal accounting stuff before submission.
@@ -2975,8 +2988,8 @@ EXPORT_SYMBOL_GPL(__blk_end_request_err);
void blk_rq_bio_prep(struct request_queue *q, struct request *rq,
struct bio *bio)
{
- /* Bit 0 (R/W) is identical in rq->cmd_flags and bio->bi_rw */
- rq->cmd_flags |= bio->bi_rw & REQ_WRITE;
+ /* tmp compat. Allow users to set bi_op or bi_rw */
+ rq->cmd_flags |= bio_data_dir(bio);
if (bio_has_data(bio))
rq->nr_phys_segments = bio_phys_segments(q, bio);
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 86a38ea..6e49c91 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -48,9 +48,15 @@ struct bio {
struct block_device *bi_bdev;
unsigned int bi_flags; /* status, command, etc */
int bi_error;
- unsigned long bi_rw; /* bottom bits READ/WRITE,
+ unsigned long bi_rw; /* bottom bits rq_flags_bits
* top bits priority
*/
+ /*
+ * this will be a u8 in the next patches and bi_rw can be shrunk to
+ * a u32. For compat in these transistional patches op is a int here.
+ */
+ int bi_op; /* REQ_OP */
+
struct bvec_iter bi_iter;
@@ -242,6 +248,13 @@ enum rq_flag_bits {
#define REQ_HASHED (1ULL << __REQ_HASHED)
#define REQ_MQ_INFLIGHT (1ULL << __REQ_MQ_INFLIGHT)
+enum req_op {
+ REQ_OP_READ,
+ REQ_OP_WRITE = REQ_WRITE,
+ REQ_OP_DISCARD = REQ_DISCARD,
+ REQ_OP_WRITE_SAME = REQ_WRITE_SAME,
+};
+
typedef unsigned int blk_qc_t;
#define BLK_QC_T_NONE -1U
#define BLK_QC_T_SHIFT 16
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index f3f232f..e2b2881 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -96,6 +96,7 @@ struct request {
struct request_queue *q;
struct blk_mq_ctx *mq_ctx;
+ int op;
u64 cmd_flags;
unsigned cmd_type;
unsigned long atomic_flags;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 69bdd03..96ace0f 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2452,15 +2452,48 @@ extern void make_bad_inode(struct inode *);
extern bool is_bad_inode(struct inode *);
#ifdef CONFIG_BLOCK
+
+static inline bool op_is_write(int op)
+{
+ switch (op) {
+ case REQ_OP_WRITE:
+ case REQ_OP_WRITE_SAME:
+ case REQ_OP_DISCARD:
+ return true;
+ default:
+ return false;
+ }
+}
+
/*
* return READ, READA, or WRITE
*/
-#define bio_rw(bio) ((bio)->bi_rw & (RW_MASK | RWA_MASK))
+static inline int bio_rw(struct bio *bio)
+{
+ /*
+ * tmp cpmpat. Allow users to set either op or rw, until
+ * all code is converted in the next patches.
+ */
+ if (op_is_write(bio->bi_op))
+ return WRITE;
+
+ return bio->bi_rw & (RW_MASK | RWA_MASK);
+}
/*
* return data direction, READ or WRITE
*/
-#define bio_data_dir(bio) ((bio)->bi_rw & 1)
+static inline int bio_data_dir(struct bio *bio)
+{
+ /*
+ * tmp cpmpat. Allow users to set either op or rw, until
+ * all code is converted in the next patches.
+ */
+ if (op_is_write(bio->bi_op))
+ return WRITE;
+
+ return bio->bi_rw & 1;
+}
extern void check_disk_size_change(struct gendisk *disk,
struct block_device *bdev);
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:10 +0200 |
| Subject | [PATCH 05/42] fs: have ll_rw_block users pass in op and flags separately |
| Message-ID | <rnzgT-6Pc-31@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This has ll_rw_block users pass in the operation and flags separately,
so ll_rw_block can setup bio->bi_op and bio-bi_rw on the bio that
is submitted.
v2:
1. Fix for kbuild error in ll_rw_block comments.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/buffer.c | 19 ++++++++++---------
fs/ext4/inode.c | 6 +++---
fs/ext4/namei.c | 3 ++-
fs/ext4/super.c | 2 +-
fs/gfs2/bmap.c | 2 +-
fs/gfs2/meta_io.c | 4 ++--
fs/gfs2/quota.c | 2 +-
fs/isofs/compress.c | 2 +-
fs/jbd2/journal.c | 2 +-
fs/jbd2/recovery.c | 4 ++--
fs/ocfs2/aops.c | 2 +-
fs/ocfs2/super.c | 2 +-
fs/reiserfs/journal.c | 8 ++++----
fs/reiserfs/stree.c | 4 ++--
fs/reiserfs/super.c | 2 +-
fs/squashfs/block.c | 4 ++--
fs/udf/dir.c | 2 +-
fs/udf/directory.c | 2 +-
fs/udf/inode.c | 2 +-
fs/ufs/balloc.c | 2 +-
include/linux/buffer_head.h | 2 +-
21 files changed, 40 insertions(+), 38 deletions(-)
diff --git a/fs/buffer.c b/fs/buffer.c
index 1e1a474..68c8f27 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -588,7 +588,7 @@ void write_boundary_block(struct block_device *bdev,
struct buffer_head *bh = __find_get_block(bdev, bblock + 1, blocksize);
if (bh) {
if (buffer_dirty(bh))
- ll_rw_block(WRITE, 1, &bh);
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
put_bh(bh);
}
}
@@ -1395,7 +1395,7 @@ void __breadahead(struct block_device *bdev, sector_t block, unsigned size)
{
struct buffer_head *bh = __getblk(bdev, block, size);
if (likely(bh)) {
- ll_rw_block(READA, 1, &bh);
+ ll_rw_block(REQ_OP_READ, READA, 1, &bh);
brelse(bh);
}
}
@@ -1955,7 +1955,7 @@ int __block_write_begin(struct page *page, loff_t pos, unsigned len,
if (!buffer_uptodate(bh) && !buffer_delay(bh) &&
!buffer_unwritten(bh) &&
(block_start < from || block_end > to)) {
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
*wait_bh++=bh;
}
}
@@ -2852,7 +2852,7 @@ int block_truncate_page(struct address_space *mapping,
if (!buffer_uptodate(bh) && !buffer_delay(bh) && !buffer_unwritten(bh)) {
err = -EIO;
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
/* Uhhuh. Read error. Complain and punt. */
if (!buffer_uptodate(bh))
@@ -3052,7 +3052,8 @@ EXPORT_SYMBOL(submit_bh);
/**
* ll_rw_block: low-level access to block devices (DEPRECATED)
- * @rw: whether to %READ or %WRITE or maybe %READA (readahead)
+ * @op: whether to %READ or %WRITE
+ * @op_flags: rq_flag_bits or %READA (readahead)
* @nr: number of &struct buffer_heads in the array
* @bhs: array of pointers to &struct buffer_head
*
@@ -3075,7 +3076,7 @@ EXPORT_SYMBOL(submit_bh);
* All of the buffers must be for the same device, and must also be a
* multiple of the current approved size for the device.
*/
-void ll_rw_block(int rw, int nr, struct buffer_head *bhs[])
+void ll_rw_block(int op, int op_flags, int nr, struct buffer_head *bhs[])
{
int i;
@@ -3084,18 +3085,18 @@ void ll_rw_block(int rw, int nr, struct buffer_head *bhs[])
if (!trylock_buffer(bh))
continue;
- if (rw == WRITE) {
+ if (op == WRITE) {
if (test_clear_buffer_dirty(bh)) {
bh->b_end_io = end_buffer_write_sync;
get_bh(bh);
- submit_bh(rw, 0, bh);
+ submit_bh(op, op_flags, bh);
continue;
}
} else {
if (!buffer_uptodate(bh)) {
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
- submit_bh(rw, 0, bh);
+ submit_bh(op, op_flags, bh);
continue;
}
}
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index d15d92e..fe96d2e 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -963,7 +963,7 @@ struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode,
return bh;
if (!bh || buffer_uptodate(bh))
return bh;
- ll_rw_block(READ | REQ_META | REQ_PRIO, 1, &bh);
+ ll_rw_block(REQ_OP_READ, REQ_META | REQ_PRIO, 1, &bh);
wait_on_buffer(bh);
if (buffer_uptodate(bh))
return bh;
@@ -1117,7 +1117,7 @@ static int ext4_block_write_begin(struct page *page, loff_t pos, unsigned len,
if (!buffer_uptodate(bh) && !buffer_delay(bh) &&
!buffer_unwritten(bh) &&
(block_start < from || block_end > to)) {
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
*wait_bh++ = bh;
decrypt = ext4_encrypted_inode(inode) &&
S_ISREG(inode->i_mode);
@@ -3603,7 +3603,7 @@ static int __ext4_block_zero_page_range(handle_t *handle,
if (!buffer_uptodate(bh)) {
err = -EIO;
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
/* Uhhuh. Read error. Complain and punt. */
if (!buffer_uptodate(bh))
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 9cab638..c3cc775 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1447,7 +1447,8 @@ restart:
}
bh_use[ra_max] = bh;
if (bh)
- ll_rw_block(READ | REQ_META | REQ_PRIO,
+ ll_rw_block(REQ_OP_READ,
+ REQ_META | REQ_PRIO,
1, &bh);
}
}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 80ee248..1a3e586 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4281,7 +4281,7 @@ static journal_t *ext4_get_dev_journal(struct super_block *sb,
goto out_bdev;
}
journal->j_private = sb;
- ll_rw_block(READ | REQ_META | REQ_PRIO, 1, &journal->j_sb_buffer);
+ ll_rw_block(REQ_OP_READ, REQ_META | REQ_PRIO, 1, &journal->j_sb_buffer);
wait_on_buffer(journal->j_sb_buffer);
if (!buffer_uptodate(journal->j_sb_buffer)) {
ext4_msg(sb, KERN_ERR, "I/O error on journal device");
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 06d79aa..fd6389c 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -974,7 +974,7 @@ static int gfs2_block_truncate_page(struct address_space *mapping, loff_t from)
if (!buffer_uptodate(bh)) {
err = -EIO;
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
/* Uhhuh. Read error. Complain and punt. */
if (!buffer_uptodate(bh))
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c
index 3c63087..f56f3ca 100644
--- a/fs/gfs2/meta_io.c
+++ b/fs/gfs2/meta_io.c
@@ -448,7 +448,7 @@ struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen)
if (buffer_uptodate(first_bh))
goto out;
if (!buffer_locked(first_bh))
- ll_rw_block(READ_SYNC | REQ_META, 1, &first_bh);
+ ll_rw_block(REQ_OP_READ, READ_SYNC | REQ_META, 1, &first_bh);
dblock++;
extlen--;
@@ -457,7 +457,7 @@ struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen)
bh = gfs2_getbuf(gl, dblock, CREATE);
if (!buffer_uptodate(bh) && !buffer_locked(bh))
- ll_rw_block(READA | REQ_META, 1, &bh);
+ ll_rw_block(REQ_OP_READ, READA | REQ_META, 1, &bh);
brelse(bh);
dblock++;
extlen--;
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index ce7d69a..62a6823 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -730,7 +730,7 @@ static int gfs2_write_buf_to_page(struct gfs2_inode *ip, unsigned long index,
if (PageUptodate(page))
set_buffer_uptodate(bh);
if (!buffer_uptodate(bh)) {
- ll_rw_block(READ | REQ_META, 1, &bh);
+ ll_rw_block(REQ_OP_READ, REQ_META, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh))
goto unlock_out;
diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c
index 2e4e834..2ce5b75 100644
--- a/fs/isofs/compress.c
+++ b/fs/isofs/compress.c
@@ -81,7 +81,7 @@ static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start,
blocknum = block_start >> bufshift;
memset(bhs, 0, (needblocks + 1) * sizeof(struct buffer_head *));
haveblocks = isofs_get_blocks(inode, blocknum, bhs, needblocks);
- ll_rw_block(READ, haveblocks, bhs);
+ ll_rw_block(REQ_OP_READ, 0, haveblocks, bhs);
curbh = 0;
curpage = 0;
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 6d7e33a..3675b8e 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1497,7 +1497,7 @@ static int journal_get_superblock(journal_t *journal)
J_ASSERT(bh != NULL);
if (!buffer_uptodate(bh)) {
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
printk(KERN_ERR
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index 08a456b..6daf0c9 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -104,7 +104,7 @@ static int do_readahead(journal_t *journal, unsigned int start)
if (!buffer_uptodate(bh) && !buffer_locked(bh)) {
bufs[nbufs++] = bh;
if (nbufs == MAXBUF) {
- ll_rw_block(READ, nbufs, bufs);
+ ll_rw_block(REQ_OP_READ, 0, nbufs, bufs);
journal_brelse_array(bufs, nbufs);
nbufs = 0;
}
@@ -113,7 +113,7 @@ static int do_readahead(journal_t *journal, unsigned int start)
}
if (nbufs)
- ll_rw_block(READ, nbufs, bufs);
+ ll_rw_block(REQ_OP_READ, 0, nbufs, bufs);
err = 0;
failed:
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index ad15773..8f0c138 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -640,7 +640,7 @@ int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno,
!buffer_new(bh) &&
ocfs2_should_read_blk(inode, page, block_start) &&
(block_start < from || block_end > to)) {
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
*wait_bh++=bh;
}
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index d7cae33..3971146 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1819,7 +1819,7 @@ static int ocfs2_get_sector(struct super_block *sb,
if (!buffer_dirty(*bh))
clear_buffer_uptodate(*bh);
unlock_buffer(*bh);
- ll_rw_block(READ, 1, bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, bh);
wait_on_buffer(*bh);
if (!buffer_uptodate(*bh)) {
mlog_errno(-EIO);
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 6945e71..bc2dde2 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -870,7 +870,7 @@ loop_next:
*/
if (buffer_dirty(bh) && unlikely(bh->b_page->mapping == NULL)) {
spin_unlock(lock);
- ll_rw_block(WRITE, 1, &bh);
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
spin_lock(lock);
}
put_bh(bh);
@@ -1057,7 +1057,7 @@ static int flush_commit_list(struct super_block *s,
if (tbh) {
if (buffer_dirty(tbh)) {
depth = reiserfs_write_unlock_nested(s);
- ll_rw_block(WRITE, 1, &tbh);
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &tbh);
reiserfs_write_lock_nested(s, depth);
}
put_bh(tbh) ;
@@ -2244,7 +2244,7 @@ abort_replay:
}
}
/* read in the log blocks, memcpy to the corresponding real block */
- ll_rw_block(READ, get_desc_trans_len(desc), log_blocks);
+ ll_rw_block(REQ_OP_READ, 0, get_desc_trans_len(desc), log_blocks);
for (i = 0; i < get_desc_trans_len(desc); i++) {
wait_on_buffer(log_blocks[i]);
@@ -2346,7 +2346,7 @@ static struct buffer_head *reiserfs_breada(struct block_device *dev,
} else
bhlist[j++] = bh;
}
- ll_rw_block(READ, j, bhlist);
+ ll_rw_block(REQ_OP_READ, 0, j, bhlist);
for (i = 1; i < j; i++)
brelse(bhlist[i]);
bh = bhlist[0];
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index 5feacd6..64b29b5 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -551,7 +551,7 @@ static int search_by_key_reada(struct super_block *s,
if (!buffer_uptodate(bh[j])) {
if (depth == -1)
depth = reiserfs_write_unlock_nested(s);
- ll_rw_block(READA, 1, bh + j);
+ ll_rw_block(REQ_OP_READ, READA, 1, bh + j);
}
brelse(bh[j]);
}
@@ -660,7 +660,7 @@ int search_by_key(struct super_block *sb, const struct cpu_key *key,
if (!buffer_uptodate(bh) && depth == -1)
depth = reiserfs_write_unlock_nested(sb);
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
if (depth != -1)
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index b8f2d1e..9938a51 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1661,7 +1661,7 @@ static int read_super_block(struct super_block *s, int offset)
/* after journal replay, reread all bitmap and super blocks */
static int reread_meta_blocks(struct super_block *s)
{
- ll_rw_block(READ, 1, &SB_BUFFER_WITH_SB(s));
+ ll_rw_block(REQ_OP_READ, 0, 1, &SB_BUFFER_WITH_SB(s));
wait_on_buffer(SB_BUFFER_WITH_SB(s));
if (!buffer_uptodate(SB_BUFFER_WITH_SB(s))) {
reiserfs_warning(s, "reiserfs-2504", "error reading the super");
diff --git a/fs/squashfs/block.c b/fs/squashfs/block.c
index 2c26184..ce62a38 100644
--- a/fs/squashfs/block.c
+++ b/fs/squashfs/block.c
@@ -124,7 +124,7 @@ int squashfs_read_data(struct super_block *sb, u64 index, int length,
goto block_release;
bytes += msblk->devblksize;
}
- ll_rw_block(READ, b, bh);
+ ll_rw_block(REQ_OP_READ, 0, b, bh);
} else {
/*
* Metadata block.
@@ -156,7 +156,7 @@ int squashfs_read_data(struct super_block *sb, u64 index, int length,
goto block_release;
bytes += msblk->devblksize;
}
- ll_rw_block(READ, b - 1, bh + 1);
+ ll_rw_block(REQ_OP_READ, 0, b - 1, bh + 1);
}
for (i = 0; i < b; i++) {
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index b51b371..cfadce0 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -113,7 +113,7 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
brelse(tmp);
}
if (num) {
- ll_rw_block(READA, num, bha);
+ ll_rw_block(REQ_OP_READ, READA, num, bha);
for (i = 0; i < num; i++)
brelse(bha[i]);
}
diff --git a/fs/udf/directory.c b/fs/udf/directory.c
index c763fda..71f3e0b 100644
--- a/fs/udf/directory.c
+++ b/fs/udf/directory.c
@@ -87,7 +87,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
brelse(tmp);
}
if (num) {
- ll_rw_block(READA, num, bha);
+ ll_rw_block(REQ_OP_READ, READA, num, bha);
for (i = 0; i < num; i++)
brelse(bha[i]);
}
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 2dc461e..a401bdbe 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1200,7 +1200,7 @@ struct buffer_head *udf_bread(struct inode *inode, int block,
if (buffer_uptodate(bh))
return bh;
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
if (buffer_uptodate(bh))
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index 0447b94..67e085d 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -292,7 +292,7 @@ static void ufs_change_blocknr(struct inode *inode, sector_t beg,
if (!buffer_mapped(bh))
map_bh(bh, inode->i_sb, oldb + pos);
if (!buffer_uptodate(bh)) {
- ll_rw_block(READ, 1, &bh);
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
ufs_error(inode->i_sb, __func__,
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index bc9a45d..d1dd293 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -187,7 +187,7 @@ struct buffer_head *alloc_buffer_head(gfp_t gfp_flags);
void free_buffer_head(struct buffer_head * bh);
void unlock_buffer(struct buffer_head *bh);
void __lock_buffer(struct buffer_head *bh);
-void ll_rw_block(int, int, struct buffer_head * bh[]);
+void ll_rw_block(int, int, int, struct buffer_head * bh[]);
int sync_dirty_buffer(struct buffer_head *bh);
int __sync_dirty_buffer(struct buffer_head *bh, int op_flags);
void write_dirty_buffer(struct buffer_head *bh, int op_flags);
--
2.7.2
[toc] | [prev] | [next] | [standalone]
| From | mchristi@redhat.com |
|---|---|
| Date | 2016-04-13 22:10 +0200 |
| Subject | [PATCH 04/42] fs: have submit_bh users pass in op and flags separately |
| Message-ID | <rnzgS-6Pc-21@gated-at.bofh.it> |
| In reply to | #1378203 |
From: Mike Christie <mchristi@redhat.com>
This has submit_bh users pass in the operation and flags separately,
so submit_bh_wbc can setup bio->bi_op and bio-bi_rw on the bio that
is submitted.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
drivers/md/bitmap.c | 4 ++--
fs/btrfs/check-integrity.c | 24 ++++++++++----------
fs/btrfs/check-integrity.h | 2 +-
fs/btrfs/disk-io.c | 4 ++--
fs/buffer.c | 54 +++++++++++++++++++++++----------------------
fs/ext4/balloc.c | 2 +-
fs/ext4/ialloc.c | 2 +-
fs/ext4/inode.c | 2 +-
fs/ext4/mmp.c | 4 ++--
fs/fat/misc.c | 2 +-
fs/gfs2/bmap.c | 2 +-
fs/gfs2/dir.c | 2 +-
fs/gfs2/meta_io.c | 6 ++---
fs/jbd2/commit.c | 6 ++---
fs/jbd2/journal.c | 8 +++----
fs/nilfs2/btnode.c | 6 ++---
fs/nilfs2/btnode.h | 2 +-
fs/nilfs2/btree.c | 6 +++--
fs/nilfs2/gcinode.c | 5 +++--
fs/nilfs2/mdt.c | 11 ++++-----
fs/ntfs/aops.c | 6 ++---
fs/ntfs/compress.c | 2 +-
fs/ntfs/file.c | 2 +-
fs/ntfs/logfile.c | 2 +-
fs/ntfs/mft.c | 4 ++--
fs/ocfs2/buffer_head_io.c | 8 +++----
fs/reiserfs/inode.c | 4 ++--
fs/reiserfs/journal.c | 6 ++---
fs/ufs/util.c | 2 +-
include/linux/buffer_head.h | 9 ++++----
30 files changed, 103 insertions(+), 96 deletions(-)
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 3fe86b5..8b2e16f 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -294,7 +294,7 @@ static void write_page(struct bitmap *bitmap, struct page *page, int wait)
atomic_inc(&bitmap->pending_writes);
set_buffer_locked(bh);
set_buffer_mapped(bh);
- submit_bh(WRITE | REQ_SYNC, bh);
+ submit_bh(REQ_OP_WRITE, REQ_SYNC, bh);
bh = bh->b_this_page;
}
@@ -389,7 +389,7 @@ static int read_page(struct file *file, unsigned long index,
atomic_inc(&bitmap->pending_writes);
set_buffer_locked(bh);
set_buffer_mapped(bh);
- submit_bh(READ, bh);
+ submit_bh(REQ_OP_READ, 0, bh);
}
block++;
bh = bh->b_this_page;
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 9400acd..f82190f 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -2856,12 +2856,12 @@ static struct btrfsic_dev_state *btrfsic_dev_state_lookup(
return ds;
}
-int btrfsic_submit_bh(int rw, struct buffer_head *bh)
+int btrfsic_submit_bh(int op, int op_flags, struct buffer_head *bh)
{
struct btrfsic_dev_state *dev_state;
if (!btrfsic_is_initialized)
- return submit_bh(rw, bh);
+ return submit_bh(op, op_flags, bh);
mutex_lock(&btrfsic_mutex);
/* since btrfsic_submit_bh() might also be called before
@@ -2870,26 +2870,26 @@ int btrfsic_submit_bh(int rw, struct buffer_head *bh)
/* Only called to write the superblock (incl. FLUSH/FUA) */
if (NULL != dev_state &&
- (rw & WRITE) && bh->b_size > 0) {
+ (op == REQ_OP_WRITE) && bh->b_size > 0) {
u64 dev_bytenr;
dev_bytenr = 4096 * bh->b_blocknr;
if (dev_state->state->print_mask &
BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
printk(KERN_INFO
- "submit_bh(rw=0x%x, blocknr=%llu (bytenr %llu),"
- " size=%zu, data=%p, bdev=%p)\n",
- rw, (unsigned long long)bh->b_blocknr,
+ "submit_bh(op=0x%x,0x%x, blocknr=%llu "
+ "(bytenr %llu), size=%zu, data=%p, bdev=%p)\n",
+ op, op_flags, (unsigned long long)bh->b_blocknr,
dev_bytenr, bh->b_size, bh->b_data, bh->b_bdev);
btrfsic_process_written_block(dev_state, dev_bytenr,
&bh->b_data, 1, NULL,
- NULL, bh, rw);
- } else if (NULL != dev_state && (rw & REQ_FLUSH)) {
+ NULL, bh, op_flags);
+ } else if (NULL != dev_state && (op_flags & REQ_FLUSH)) {
if (dev_state->state->print_mask &
BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
printk(KERN_INFO
- "submit_bh(rw=0x%x FLUSH, bdev=%p)\n",
- rw, bh->b_bdev);
+ "submit_bh(op=0x%x,0x%x FLUSH, bdev=%p)\n",
+ op, op_flags, bh->b_bdev);
if (!dev_state->dummy_block_for_bio_bh_flush.is_iodone) {
if ((dev_state->state->print_mask &
(BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH |
@@ -2907,7 +2907,7 @@ int btrfsic_submit_bh(int rw, struct buffer_head *bh)
block->never_written = 0;
block->iodone_w_error = 0;
block->flush_gen = dev_state->last_flush_gen + 1;
- block->submit_bio_bh_rw = rw;
+ block->submit_bio_bh_rw = op_flags;
block->orig_bio_bh_private = bh->b_private;
block->orig_bio_bh_end_io.bh = bh->b_end_io;
block->next_in_same_bio = NULL;
@@ -2916,7 +2916,7 @@ int btrfsic_submit_bh(int rw, struct buffer_head *bh)
}
}
mutex_unlock(&btrfsic_mutex);
- return submit_bh(rw, bh);
+ return submit_bh(op, op_flags, bh);
}
static void __btrfsic_submit_bio(struct bio *bio)
diff --git a/fs/btrfs/check-integrity.h b/fs/btrfs/check-integrity.h
index c04e249..f78dff1 100644
--- a/fs/btrfs/check-integrity.h
+++ b/fs/btrfs/check-integrity.h
@@ -20,7 +20,7 @@
#define __BTRFS_CHECK_INTEGRITY__
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
-int btrfsic_submit_bh(int rw, struct buffer_head *bh);
+int btrfsic_submit_bh(int op, int op_flags, struct buffer_head *bh);
void btrfsic_submit_bio(struct bio *bio);
int btrfsic_submit_bio_wait(struct bio *bio);
#else
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 0bd25e4..9a13c85 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3410,9 +3410,9 @@ static int write_dev_supers(struct btrfs_device *device,
* to go down lazy.
*/
if (i == 0)
- ret = btrfsic_submit_bh(WRITE_FUA, bh);
+ ret = btrfsic_submit_bh(REQ_OP_WRITE, WRITE_FUA, bh);
else
- ret = btrfsic_submit_bh(WRITE_SYNC, bh);
+ ret = btrfsic_submit_bh(REQ_OP_WRITE, WRITE_SYNC, bh);
if (ret)
errors++;
}
diff --git a/fs/buffer.c b/fs/buffer.c
index 7ed7869..1e1a474 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -45,7 +45,7 @@
#include <trace/events/block.h>
static int fsync_buffers_list(spinlock_t *lock, struct list_head *list);
-static int submit_bh_wbc(int rw, struct buffer_head *bh,
+static int submit_bh_wbc(int op, int op_flags, struct buffer_head *bh,
unsigned long bio_flags,
struct writeback_control *wbc);
@@ -1225,7 +1225,7 @@ static struct buffer_head *__bread_slow(struct buffer_head *bh)
} else {
get_bh(bh);
bh->b_end_io = end_buffer_read_sync;
- submit_bh(READ, bh);
+ submit_bh(REQ_OP_READ, 0, bh);
wait_on_buffer(bh);
if (buffer_uptodate(bh))
return bh;
@@ -1697,7 +1697,7 @@ static int __block_write_full_page(struct inode *inode, struct page *page,
struct buffer_head *bh, *head;
unsigned int blocksize, bbits;
int nr_underway = 0;
- int write_op = (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : WRITE);
+ int write_flags = (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : 0);
head = create_page_buffers(page, inode,
(1 << BH_Dirty)|(1 << BH_Uptodate));
@@ -1786,7 +1786,7 @@ static int __block_write_full_page(struct inode *inode, struct page *page,
do {
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
- submit_bh_wbc(write_op, bh, 0, wbc);
+ submit_bh_wbc(REQ_OP_WRITE, write_flags, bh, 0, wbc);
nr_underway++;
}
bh = next;
@@ -1840,7 +1840,7 @@ recover:
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
clear_buffer_dirty(bh);
- submit_bh_wbc(write_op, bh, 0, wbc);
+ submit_bh_wbc(REQ_OP_WRITE, write_flags, bh, 0, wbc);
nr_underway++;
}
bh = next;
@@ -2248,7 +2248,7 @@ int block_read_full_page(struct page *page, get_block_t *get_block)
if (buffer_uptodate(bh))
end_buffer_async_read(bh, 1);
else
- submit_bh(READ, bh);
+ submit_bh(REQ_OP_READ, 0, bh);
}
return 0;
}
@@ -2582,7 +2582,7 @@ int nobh_write_begin(struct address_space *mapping,
if (block_start < from || block_end > to) {
lock_buffer(bh);
bh->b_end_io = end_buffer_read_nobh;
- submit_bh(READ, bh);
+ submit_bh(REQ_OP_READ, 0, bh);
nr_reads++;
}
}
@@ -2949,7 +2949,7 @@ static void end_bio_bh_io_sync(struct bio *bio)
* errors, this only handles the "we need to be able to
* do IO at the final sector" case.
*/
-void guard_bio_eod(int rw, struct bio *bio)
+void guard_bio_eod(int op, struct bio *bio)
{
sector_t maxsector;
struct bio_vec *bvec = &bio->bi_io_vec[bio->bi_vcnt - 1];
@@ -2979,13 +2979,13 @@ void guard_bio_eod(int rw, struct bio *bio)
bvec->bv_len -= truncated_bytes;
/* ..and clear the end of the buffer for reads */
- if ((rw & RW_MASK) == READ) {
+ if (op == REQ_OP_READ) {
zero_user(bvec->bv_page, bvec->bv_offset + bvec->bv_len,
truncated_bytes);
}
}
-static int submit_bh_wbc(int rw, struct buffer_head *bh,
+static int submit_bh_wbc(int op, int op_flags, struct buffer_head *bh,
unsigned long bio_flags, struct writeback_control *wbc)
{
struct bio *bio;
@@ -2999,7 +2999,7 @@ static int submit_bh_wbc(int rw, struct buffer_head *bh,
/*
* Only clear out a write error when rewriting
*/
- if (test_set_buffer_req(bh) && (rw & WRITE))
+ if (test_set_buffer_req(bh) && (op == REQ_OP_WRITE))
clear_buffer_write_io_error(bh);
/*
@@ -3022,29 +3022,31 @@ static int submit_bh_wbc(int rw, struct buffer_head *bh,
bio->bi_end_io = end_bio_bh_io_sync;
bio->bi_private = bh;
bio->bi_flags |= bio_flags;
+ bio->bi_op = op;
/* Take care of bh's that straddle the end of the device */
- guard_bio_eod(rw, bio);
+ guard_bio_eod(op, bio);
if (buffer_meta(bh))
- rw |= REQ_META;
+ op_flags |= REQ_META;
if (buffer_prio(bh))
- rw |= REQ_PRIO;
- bio->bi_rw = rw;
+ op_flags |= REQ_PRIO;
+ bio->bi_rw = op_flags;
submit_bio(bio);
return 0;
}
-int _submit_bh(int rw, struct buffer_head *bh, unsigned long bio_flags)
+int _submit_bh(int op, int op_flags, struct buffer_head *bh,
+ unsigned long bio_flags)
{
- return submit_bh_wbc(rw, bh, bio_flags, NULL);
+ return submit_bh_wbc(op, op_flags, bh, bio_flags, NULL);
}
EXPORT_SYMBOL_GPL(_submit_bh);
-int submit_bh(int rw, struct buffer_head *bh)
+int submit_bh(int op, int op_flags, struct buffer_head *bh)
{
- return submit_bh_wbc(rw, bh, 0, NULL);
+ return submit_bh_wbc(op, op_flags, bh, 0, NULL);
}
EXPORT_SYMBOL(submit_bh);
@@ -3086,14 +3088,14 @@ void ll_rw_block(int rw, int nr, struct buffer_head *bhs[])
if (test_clear_buffer_dirty(bh)) {
bh->b_end_io = end_buffer_write_sync;
get_bh(bh);
- submit_bh(WRITE, bh);
+ submit_bh(rw, 0, bh);
continue;
}
} else {
if (!buffer_uptodate(bh)) {
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
- submit_bh(rw, bh);
+ submit_bh(rw, 0, bh);
continue;
}
}
@@ -3102,7 +3104,7 @@ void ll_rw_block(int rw, int nr, struct buffer_head *bhs[])
}
EXPORT_SYMBOL(ll_rw_block);
-void write_dirty_buffer(struct buffer_head *bh, int rw)
+void write_dirty_buffer(struct buffer_head *bh, int op_flags)
{
lock_buffer(bh);
if (!test_clear_buffer_dirty(bh)) {
@@ -3111,7 +3113,7 @@ void write_dirty_buffer(struct buffer_head *bh, int rw)
}
bh->b_end_io = end_buffer_write_sync;
get_bh(bh);
- submit_bh(rw, bh);
+ submit_bh(REQ_OP_WRITE, op_flags, bh);
}
EXPORT_SYMBOL(write_dirty_buffer);
@@ -3120,7 +3122,7 @@ EXPORT_SYMBOL(write_dirty_buffer);
* and then start new I/O and then wait upon it. The caller must have a ref on
* the buffer_head.
*/
-int __sync_dirty_buffer(struct buffer_head *bh, int rw)
+int __sync_dirty_buffer(struct buffer_head *bh, int op_flags)
{
int ret = 0;
@@ -3129,7 +3131,7 @@ int __sync_dirty_buffer(struct buffer_head *bh, int rw)
if (test_clear_buffer_dirty(bh)) {
get_bh(bh);
bh->b_end_io = end_buffer_write_sync;
- ret = submit_bh(rw, bh);
+ ret = submit_bh(REQ_OP_WRITE, op_flags, bh);
wait_on_buffer(bh);
if (!ret && !buffer_uptodate(bh))
ret = -EIO;
@@ -3392,7 +3394,7 @@ int bh_submit_read(struct buffer_head *bh)
get_bh(bh);
bh->b_end_io = end_buffer_read_sync;
- submit_bh(READ, bh);
+ submit_bh(REQ_OP_READ, 0, bh);
wait_on_buffer(bh);
if (buffer_uptodate(bh))
return 0;
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index fe1f50f..d06823b 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -470,7 +470,7 @@ ext4_read_block_bitmap_nowait(struct super_block *sb, ext4_group_t block_group)
trace_ext4_read_block_bitmap_load(sb, block_group);
bh->b_end_io = ext4_end_bitmap_read;
get_bh(bh);
- submit_bh(READ | REQ_META | REQ_PRIO, bh);
+ submit_bh(REQ_OP_READ, REQ_META | REQ_PRIO, bh);
return bh;
verify:
err = ext4_validate_block_bitmap(sb, desc, block_group, bh);
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 69bb343..337ad70 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -214,7 +214,7 @@ ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group)
trace_ext4_load_inode_bitmap(sb, block_group);
bh->b_end_io = ext4_end_bitmap_read;
get_bh(bh);
- submit_bh(READ | REQ_META | REQ_PRIO, bh);
+ submit_bh(REQ_OP_READ, REQ_META | REQ_PRIO, bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
put_bh(bh);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 8f44605..d15d92e 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4186,7 +4186,7 @@ make_io:
trace_ext4_load_inode(inode);
get_bh(bh);
bh->b_end_io = end_buffer_read_sync;
- submit_bh(READ | REQ_META | REQ_PRIO, bh);
+ submit_bh(REQ_OP_READ, REQ_META | REQ_PRIO, bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
EXT4_ERROR_INODE_BLOCK(inode, block,
diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
index 2444527..cef1db4 100644
--- a/fs/ext4/mmp.c
+++ b/fs/ext4/mmp.c
@@ -52,7 +52,7 @@ static int write_mmp_block(struct super_block *sb, struct buffer_head *bh)
lock_buffer(bh);
bh->b_end_io = end_buffer_write_sync;
get_bh(bh);
- submit_bh(WRITE_SYNC | REQ_META | REQ_PRIO, bh);
+ submit_bh(REQ_OP_WRITE, WRITE_SYNC | REQ_META | REQ_PRIO, bh);
wait_on_buffer(bh);
sb_end_write(sb);
if (unlikely(!buffer_uptodate(bh)))
@@ -88,7 +88,7 @@ static int read_mmp_block(struct super_block *sb, struct buffer_head **bh,
get_bh(*bh);
lock_buffer(*bh);
(*bh)->b_end_io = end_buffer_read_sync;
- submit_bh(READ_SYNC | REQ_META | REQ_PRIO, *bh);
+ submit_bh(REQ_OP_READ, READ_SYNC | REQ_META | REQ_PRIO, *bh);
wait_on_buffer(*bh);
if (!buffer_uptodate(*bh)) {
ret = -EIO;
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
index c4589e9..8a86981 100644
--- a/fs/fat/misc.c
+++ b/fs/fat/misc.c
@@ -267,7 +267,7 @@ int fat_sync_bhs(struct buffer_head **bhs, int nr_bhs)
int i, err = 0;
for (i = 0; i < nr_bhs; i++)
- write_dirty_buffer(bhs[i], WRITE);
+ write_dirty_buffer(bhs[i], 0);
for (i = 0; i < nr_bhs; i++) {
wait_on_buffer(bhs[i]);
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 24ce1cd..06d79aa 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -285,7 +285,7 @@ static void gfs2_metapath_ra(struct gfs2_glock *gl,
if (trylock_buffer(rabh)) {
if (!buffer_uptodate(rabh)) {
rabh->b_end_io = end_buffer_read_sync;
- submit_bh(READA | REQ_META, rabh);
+ submit_bh(REQ_OP_READ, READA | REQ_META, rabh);
continue;
}
unlock_buffer(rabh);
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 4a01f30..97a7d47 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -1510,7 +1510,7 @@ static void gfs2_dir_readahead(struct inode *inode, unsigned hsize, u32 index,
continue;
}
bh->b_end_io = end_buffer_read_sync;
- submit_bh(READA | REQ_META, bh);
+ submit_bh(REQ_OP_READ, READA | REQ_META, bh);
continue;
}
brelse(bh);
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c
index f8d33e8..3c63087 100644
--- a/fs/gfs2/meta_io.c
+++ b/fs/gfs2/meta_io.c
@@ -37,8 +37,8 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
{
struct buffer_head *bh, *head;
int nr_underway = 0;
- int write_op = REQ_META | REQ_PRIO |
- (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : WRITE);
+ int write_flags = REQ_META | REQ_PRIO |
+ (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : 0);
BUG_ON(!PageLocked(page));
BUG_ON(!page_has_buffers(page));
@@ -79,7 +79,7 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
do {
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
- submit_bh(write_op, bh);
+ submit_bh(REQ_OP_WRITE, write_flags, bh);
nr_underway++;
}
bh = next;
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 2ad98d6..956bcf0 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -155,9 +155,9 @@ static int journal_submit_commit_record(journal_t *journal,
if (journal->j_flags & JBD2_BARRIER &&
!jbd2_has_feature_async_commit(journal))
- ret = submit_bh(WRITE_SYNC | WRITE_FLUSH_FUA, bh);
+ ret = submit_bh(REQ_OP_WRITE, WRITE_SYNC | WRITE_FLUSH_FUA, bh);
else
- ret = submit_bh(WRITE_SYNC, bh);
+ ret = submit_bh(REQ_OP_WRITE, WRITE_SYNC, bh);
*cbh = bh;
return ret;
@@ -714,7 +714,7 @@ start_journal_io:
clear_buffer_dirty(bh);
set_buffer_uptodate(bh);
bh->b_end_io = journal_end_buffer_io_sync;
- submit_bh(WRITE_SYNC, bh);
+ submit_bh(REQ_OP_WRITE, WRITE_SYNC, bh);
}
cond_resched();
stats.run.rs_blocks_logged += bufs;
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 435f0b2..6d7e33a 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1345,15 +1345,15 @@ static int journal_reset(journal_t *journal)
return jbd2_journal_start_thread(journal);
}
-static int jbd2_write_superblock(journal_t *journal, int write_op)
+static int jbd2_write_superblock(journal_t *journal, int write_flags)
{
struct buffer_head *bh = journal->j_sb_buffer;
journal_superblock_t *sb = journal->j_superblock;
int ret;
- trace_jbd2_write_superblock(journal, write_op);
+ trace_jbd2_write_superblock(journal, write_flags);
if (!(journal->j_flags & JBD2_BARRIER))
- write_op &= ~(REQ_FUA | REQ_FLUSH);
+ write_flags &= ~(REQ_FUA | REQ_FLUSH);
lock_buffer(bh);
if (buffer_write_io_error(bh)) {
/*
@@ -1373,7 +1373,7 @@ static int jbd2_write_superblock(journal_t *journal, int write_op)
jbd2_superblock_csum_set(journal, sb);
get_bh(bh);
bh->b_end_io = end_buffer_write_sync;
- ret = submit_bh(write_op, bh);
+ ret = submit_bh(REQ_OP_WRITE, write_flags, bh);
wait_on_buffer(bh);
if (buffer_write_io_error(bh)) {
clear_buffer_write_io_error(bh);
diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c
index e0c9daf..87baf87 100644
--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -67,7 +67,7 @@ nilfs_btnode_create_block(struct address_space *btnc, __u64 blocknr)
}
int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
- sector_t pblocknr, int mode,
+ sector_t pblocknr, int mode, int mode_flags,
struct buffer_head **pbh, sector_t *submit_ptr)
{
struct buffer_head *bh;
@@ -100,7 +100,7 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
}
}
- if (mode == READA) {
+ if (mode_flags & REQ_RAHEAD) {
if (pblocknr != *submit_ptr + 1 || !trylock_buffer(bh)) {
err = -EBUSY; /* internal code */
brelse(bh);
@@ -119,7 +119,7 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
bh->b_blocknr = pblocknr; /* set block address for read */
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
- submit_bh(mode, bh);
+ submit_bh(mode, mode_flags, bh);
bh->b_blocknr = blocknr; /* set back to the given block address */
*submit_ptr = pblocknr;
err = 0;
diff --git a/fs/nilfs2/btnode.h b/fs/nilfs2/btnode.h
index d876b56..3f93197 100644
--- a/fs/nilfs2/btnode.h
+++ b/fs/nilfs2/btnode.h
@@ -47,7 +47,7 @@ void nilfs_btnode_cache_clear(struct address_space *);
struct buffer_head *nilfs_btnode_create_block(struct address_space *btnc,
__u64 blocknr);
int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t, int,
- struct buffer_head **, sector_t *);
+ int, struct buffer_head **, sector_t *);
void nilfs_btnode_delete(struct buffer_head *);
int nilfs_btnode_prepare_change_key(struct address_space *,
struct nilfs_btnode_chkey_ctxt *);
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index 3a3821b..5d6a2c6 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -480,7 +480,8 @@ static int __nilfs_btree_get_block(const struct nilfs_bmap *btree, __u64 ptr,
sector_t submit_ptr = 0;
int ret;
- ret = nilfs_btnode_submit_block(btnc, ptr, 0, READ, &bh, &submit_ptr);
+ ret = nilfs_btnode_submit_block(btnc, ptr, 0, REQ_OP_READ, 0, &bh,
+ &submit_ptr);
if (ret) {
if (ret != -EEXIST)
return ret;
@@ -496,7 +497,8 @@ static int __nilfs_btree_get_block(const struct nilfs_bmap *btree, __u64 ptr,
n > 0 && i < ra->ncmax; n--, i++) {
ptr2 = nilfs_btree_node_get_ptr(ra->node, i, ra->ncmax);
- ret = nilfs_btnode_submit_block(btnc, ptr2, 0, READA,
+ ret = nilfs_btnode_submit_block(btnc, ptr2, 0,
+ REQ_OP_READ, REQ_RAHEAD,
&ra_bh, &submit_ptr);
if (likely(!ret || ret == -EEXIST))
brelse(ra_bh);
diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c
index 0224b78..90be270 100644
--- a/fs/nilfs2/gcinode.c
+++ b/fs/nilfs2/gcinode.c
@@ -106,7 +106,7 @@ int nilfs_gccache_submit_read_data(struct inode *inode, sector_t blkoff,
bh->b_blocknr = pbn;
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
- submit_bh(READ, bh);
+ submit_bh(REQ_OP_READ, 0, bh);
if (vbn)
bh->b_blocknr = vbn;
out:
@@ -143,7 +143,8 @@ int nilfs_gccache_submit_read_node(struct inode *inode, sector_t pbn,
int ret;
ret = nilfs_btnode_submit_block(&NILFS_I(inode)->i_btnode_cache,
- vbn ? : pbn, pbn, READ, out_bh, &pbn);
+ vbn ? : pbn, pbn, REQ_OP_READ, 0,
+ out_bh, &pbn);
if (ret == -EEXIST) /* internal code (cache hit) */
ret = 0;
return ret;
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index f6982b9..27aee74 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -124,7 +124,7 @@ static int nilfs_mdt_create_block(struct inode *inode, unsigned long block,
static int
nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff,
- int mode, struct buffer_head **out_bh)
+ int mode, int mode_flags, struct buffer_head **out_bh)
{
struct buffer_head *bh;
__u64 blknum = 0;
@@ -138,7 +138,7 @@ nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff,
if (buffer_uptodate(bh))
goto out;
- if (mode == READA) {
+ if (mode_flags & REQ_RAHEAD) {
if (!trylock_buffer(bh)) {
ret = -EBUSY;
goto failed_bh;
@@ -160,7 +160,7 @@ nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff,
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);
- submit_bh(mode, bh);
+ submit_bh(mode, mode_flags, bh);
ret = 0;
trace_nilfs2_mdt_submit_block(inode, inode->i_ino, blkoff, mode);
@@ -184,7 +184,7 @@ static int nilfs_mdt_read_block(struct inode *inode, unsigned long block,
int i, nr_ra_blocks = NILFS_MDT_MAX_RA_BLOCKS;
int err;
- err = nilfs_mdt_submit_block(inode, block, READ, &first_bh);
+ err = nilfs_mdt_submit_block(inode, block, REQ_OP_READ, 0, &first_bh);
if (err == -EEXIST) /* internal code */
goto out;
@@ -194,7 +194,8 @@ static int nilfs_mdt_read_block(struct inode *inode, unsigned long block,
if (readahead) {
blkoff = block + 1;
for (i = 0; i < nr_ra_blocks; i++, blkoff++) {
- err = nilfs_mdt_submit_block(inode, blkoff, READA, &bh);
+ err = nilfs_mdt_submit_block(inode, blkoff, REQ_OP_READ,
+ REQ_RAHEAD, &bh);
if (likely(!err || err == -EEXIST))
brelse(bh);
else if (err != -EBUSY)
diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
index 97768a1..fe251f1 100644
--- a/fs/ntfs/aops.c
+++ b/fs/ntfs/aops.c
@@ -362,7 +362,7 @@ handle_zblock:
for (i = 0; i < nr; i++) {
tbh = arr[i];
if (likely(!buffer_uptodate(tbh)))
- submit_bh(READ, tbh);
+ submit_bh(REQ_OP_READ, 0, tbh);
else
ntfs_end_buffer_async_read(tbh, 1);
}
@@ -877,7 +877,7 @@ lock_retry_remap:
do {
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
- submit_bh(WRITE, bh);
+ submit_bh(REQ_OP_WRITE, 0, bh);
need_end_writeback = false;
}
bh = next;
@@ -1202,7 +1202,7 @@ lock_retry_remap:
BUG_ON(!buffer_mapped(tbh));
get_bh(tbh);
tbh->b_end_io = end_buffer_write_sync;
- submit_bh(WRITE, tbh);
+ submit_bh(REQ_OP_WRITE, 0, tbh);
}
/* Synchronize the mft mirror now if not @sync. */
if (is_mft && !sync)
diff --git a/fs/ntfs/compress.c b/fs/ntfs/compress.c
index f2b5e74..f8eb043 100644
--- a/fs/ntfs/compress.c
+++ b/fs/ntfs/compress.c
@@ -670,7 +670,7 @@ lock_retry_remap:
}
get_bh(tbh);
tbh->b_end_io = end_buffer_read_sync;
- submit_bh(READ, tbh);
+ submit_bh(REQ_OP_READ, 0, tbh);
}
/* Wait for io completion on all buffer heads. */
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 91117ad..d96f0c1 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -553,7 +553,7 @@ static inline int ntfs_submit_bh_for_read(struct buffer_head *bh)
lock_buffer(bh);
get_bh(bh);
bh->b_end_io = end_buffer_read_sync;
- return submit_bh(READ, bh);
+ return submit_bh(REQ_OP_READ, 0, bh);
}
/**
diff --git a/fs/ntfs/logfile.c b/fs/ntfs/logfile.c
index 9d71213..761f12f 100644
--- a/fs/ntfs/logfile.c
+++ b/fs/ntfs/logfile.c
@@ -821,7 +821,7 @@ map_vcn:
* completed ignore errors afterwards as we can assume
* that if one buffer worked all of them will work.
*/
- submit_bh(WRITE, bh);
+ submit_bh(REQ_OP_WRITE, 0, bh);
if (should_wait) {
should_wait = false;
wait_on_buffer(bh);
diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c
index 37b2501..d15d492 100644
--- a/fs/ntfs/mft.c
+++ b/fs/ntfs/mft.c
@@ -592,7 +592,7 @@ int ntfs_sync_mft_mirror(ntfs_volume *vol, const unsigned long mft_no,
clear_buffer_dirty(tbh);
get_bh(tbh);
tbh->b_end_io = end_buffer_write_sync;
- submit_bh(WRITE, tbh);
+ submit_bh(REQ_OP_WRITE, 0, tbh);
}
/* Wait on i/o completion of buffers. */
for (i_bhs = 0; i_bhs < nr_bhs; i_bhs++) {
@@ -785,7 +785,7 @@ int write_mft_record_nolock(ntfs_inode *ni, MFT_RECORD *m, int sync)
clear_buffer_dirty(tbh);
get_bh(tbh);
tbh->b_end_io = end_buffer_write_sync;
- submit_bh(WRITE, tbh);
+ submit_bh(REQ_OP_WRITE, 0, tbh);
}
/* Synchronize the mft mirror now if not @sync. */
if (!sync && ni->mft_no < vol->mftmirr_size)
diff --git a/fs/ocfs2/buffer_head_io.c b/fs/ocfs2/buffer_head_io.c
index fe50ded..fb775c9 100644
--- a/fs/ocfs2/buffer_head_io.c
+++ b/fs/ocfs2/buffer_head_io.c
@@ -79,7 +79,7 @@ int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh,
get_bh(bh); /* for end_buffer_write_sync() */
bh->b_end_io = end_buffer_write_sync;
- submit_bh(WRITE, bh);
+ submit_bh(REQ_OP_WRITE, 0, bh);
wait_on_buffer(bh);
@@ -149,7 +149,7 @@ int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block,
clear_buffer_uptodate(bh);
get_bh(bh); /* for end_buffer_read_sync() */
bh->b_end_io = end_buffer_read_sync;
- submit_bh(READ, bh);
+ submit_bh(REQ_OP_READ, 0, bh);
}
for (i = nr; i > 0; i--) {
@@ -305,7 +305,7 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
if (validate)
set_buffer_needs_validate(bh);
bh->b_end_io = end_buffer_read_sync;
- submit_bh(READ, bh);
+ submit_bh(REQ_OP_READ, 0, bh);
continue;
}
}
@@ -419,7 +419,7 @@ int ocfs2_write_super_or_backup(struct ocfs2_super *osb,
get_bh(bh); /* for end_buffer_write_sync() */
bh->b_end_io = end_buffer_write_sync;
ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &di->i_check);
- submit_bh(WRITE, bh);
+ submit_bh(REQ_OP_WRITE, 0, bh);
wait_on_buffer(bh);
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index d5c2e9c..b72c23a 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -2668,7 +2668,7 @@ static int reiserfs_write_full_page(struct page *page,
do {
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
- submit_bh(WRITE, bh);
+ submit_bh(REQ_OP_WRITE, 0, bh);
nr++;
}
put_bh(bh);
@@ -2728,7 +2728,7 @@ fail:
struct buffer_head *next = bh->b_this_page;
if (buffer_async_write(bh)) {
clear_buffer_dirty(bh);
- submit_bh(WRITE, bh);
+ submit_bh(REQ_OP_WRITE, 0, bh);
nr++;
}
put_bh(bh);
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 2ace90e..6945e71 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -652,7 +652,7 @@ static void submit_logged_buffer(struct buffer_head *bh)
BUG();
if (!buffer_uptodate(bh))
BUG();
- submit_bh(WRITE, bh);
+ submit_bh(REQ_OP_WRITE, 0, bh);
}
static void submit_ordered_buffer(struct buffer_head *bh)
@@ -662,7 +662,7 @@ static void submit_ordered_buffer(struct buffer_head *bh)
clear_buffer_dirty(bh);
if (!buffer_uptodate(bh))
BUG();
- submit_bh(WRITE, bh);
+ submit_bh(REQ_OP_WRITE, 0, bh);
}
#define CHUNK_SIZE 32
@@ -2269,7 +2269,7 @@ abort_replay:
/* flush out the real blocks */
for (i = 0; i < get_desc_trans_len(desc); i++) {
set_buffer_dirty(real_blocks[i]);
- write_dirty_buffer(real_blocks[i], WRITE);
+ write_dirty_buffer(real_blocks[i], 0);
}
for (i = 0; i < get_desc_trans_len(desc); i++) {
wait_on_buffer(real_blocks[i]);
diff --git a/fs/ufs/util.c b/fs/ufs/util.c
index a409e3e7..f41ad0a 100644
--- a/fs/ufs/util.c
+++ b/fs/ufs/util.c
@@ -118,7 +118,7 @@ void ubh_sync_block(struct ufs_buffer_head *ubh)
unsigned i;
for (i = 0; i < ubh->count; i++)
- write_dirty_buffer(ubh->bh[i], WRITE);
+ write_dirty_buffer(ubh->bh[i], 0);
for (i = 0; i < ubh->count; i++)
wait_on_buffer(ubh->bh[i]);
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index d48daa3..bc9a45d 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -189,10 +189,11 @@ void unlock_buffer(struct buffer_head *bh);
void __lock_buffer(struct buffer_head *bh);
void ll_rw_block(int, int, struct buffer_head * bh[]);
int sync_dirty_buffer(struct buffer_head *bh);
-int __sync_dirty_buffer(struct buffer_head *bh, int rw);
-void write_dirty_buffer(struct buffer_head *bh, int rw);
-int _submit_bh(int rw, struct buffer_head *bh, unsigned long bio_flags);
-int submit_bh(int, struct buffer_head *);
+int __sync_dirty_buffer(struct buffer_head *bh, int op_flags);
+void write_dirty_buffer(struct buffer_head *bh, int op_flags);
+int _submit_bh(int op, int op_flags, struct buffer_head *bh,
+ unsigned long bio_flags);
+int submit_bh(int, int, struct buffer_head *);
void write_boundary_block(struct block_device *bdev,
sector_t bblock, unsigned blocksize);
int bh_uptodate_or_lock(struct buffer_head *bh);
--
2.7.2
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| From | Hannes Reinecke <hare@suse.de> |
|---|---|
| Date | 2016-04-14 08:10 +0200 |
| Subject | Re: [PATCH 00/42] v5: separate operations from flags in the bio/request structs |
| Message-ID | <rnIDw-5In-5@gated-at.bofh.it> |
| In reply to | #1378203 |
On 04/13/2016 09:35 PM, mchristi@redhat.com wrote: > The following patches begin to cleanup the request->cmd_flags and > bio->bi_rw mess. We currently use cmd_flags to specify the operation, > attributes and state of the request. For bi_rw we use it for similar > info and also the priority but then also have another bi_flags field > for state. At some point, we abused them so much we just made cmd_flags > 64 bits, so we could add more. > > The following patches seperate the operation (read, write discard, > flush, etc) from cmd_flags/bi_rw. > > This patchset was made against linux-next from today April 13 > (git tag next-20160413). > > I put a git tree here: > https://github.com/mikechristie/linux-kernel.git > The patches are in the op branch. > A round of applause for you. For the entire series: Reviewed-by: Hannes Reinecke <hare@suse.com> Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking hare@suse.de +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg)
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