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Groups > linux.kernel > #1414195
| From | mchristi@redhat.com |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 13/45] btrfs: update __btrfs_map_block for REQ_OP transition |
| Date | 2016-06-05 22:00 +0200 |
| Message-ID | <rGMnf-2Bz-13@gated-at.bofh.it> (permalink) |
| References | <rGM3T-2uj-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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>
Reviewed-by: Hannes Reinecke <hare@suse.com>
---
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 a400951..70af591 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2043,7 +2043,7 @@ 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 b07e1d9..1575944 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1838,7 +1838,7 @@ 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_op(bio), logical,
&map_length, NULL, 0);
/* Will always return 0 with map_multi == NULL */
BUG_ON(ret < 0);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 4dc2249..345b183 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -5248,7 +5248,7 @@ 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)
@@ -5334,7 +5334,7 @@ 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;
@@ -5347,7 +5347,7 @@ 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 {
@@ -5372,8 +5372,8 @@ 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
@@ -5460,15 +5460,17 @@ 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;
@@ -5481,7 +5483,8 @@ 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;
@@ -5495,9 +5498,9 @@ 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);
@@ -5515,7 +5518,7 @@ 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,
@@ -5543,8 +5546,8 @@ 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 {
@@ -5567,9 +5570,9 @@ 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;
}
@@ -5584,7 +5587,8 @@ 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;
@@ -5609,7 +5613,7 @@ 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;
@@ -5689,14 +5693,15 @@ 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;
@@ -5731,7 +5736,7 @@ 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;
@@ -5806,21 +5811,21 @@ 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 0ac90f8..3b78700 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -375,10 +375,10 @@ 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
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[PATCH 00/45] v8: separate operations from flags in the bio/request structs mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 37/45] drivers: use req op accessor mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 35/45] block: convert merge/insert code to check for REQ_OPs. mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 43/45] block, drivers: add REQ_OP_FLUSH operation mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 36/45] block: convert is_sync helpers to use REQ_OPs. mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 14/45] btrfs: use bio fields for op and flags mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 05/45] block, drivers, cgroup: use op_is_write helper instead of checking for REQ_WRITE mchristi@redhat.com - 2016-06-05 21:40 +0200
Re: [PATCH 05/45] block, drivers, cgroup: use op_is_write helper instead of checking for REQ_WRITE Hannes Reinecke <hare@suse.de> - 2016-06-06 08:20 +0200
[PATCH 40/45] block: move bio io prio to a new field mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 23/45] dm: pass dm stats data dir instead of bi_rw mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 41/45] block, drivers, fs: shrink bi_rw from long to int mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 45/45] block, drivers, fs: rename REQ_FLUSH to REQ_PREFLUSH mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 44/45] block: do not use REQ_FLUSH for tracking flush support mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 38/45] blktrace: use op accessors mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 42/45] block, fs, drivers: remove REQ_OP compat defs and related code mchristi@redhat.com - 2016-06-05 21:40 +0200
Re: [PATCH 42/45] block, fs, drivers: remove REQ_OP compat defs and related code kbuild test robot <lkp@intel.com> - 2016-06-05 23:00 +0200
Re: [PATCH 42/45] block, fs, drivers: remove REQ_OP compat defs and related code kbuild test robot <lkp@intel.com> - 2016-06-05 23:40 +0200
Re: [PATCH 42/45] block, fs, drivers: remove REQ_OP compat defs and related code kbuild test robot <lkp@intel.com> - 2016-06-06 00:10 +0200
[PATCH 21/45] ocfs2: use bio op accessors mchristi@redhat.com - 2016-06-05 21:40 +0200
[PATCH 28/45] target: use bio op accessors mchristi@redhat.com - 2016-06-05 21:40 +0200
Re: [PATCH 28/45] target: use bio op accessors Hannes Reinecke <hare@suse.de> - 2016-06-06 08:50 +0200
Re: [PATCH 28/45] target: use bio op accessors Hannes Reinecke <hare@suse.de> - 2016-06-06 17:50 +0200
Re: [PATCH 28/45] target: use bio op accessors Mike Christie <mchristi@redhat.com> - 2016-06-06 17:50 +0200
[PATCH 15/45] f2fs: use bio op accessors mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 02/45] block: add REQ_OP definitions and helpers mchristi@redhat.com - 2016-06-05 21:50 +0200
Re: [PATCH 02/45] block: add REQ_OP definitions and helpers Hannes Reinecke <hare@suse.de> - 2016-06-06 08:20 +0200
[PATCH 22/45] pm: use bio op accessors mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 33/45] block: prepare elevator to use REQ_OPs. mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 18/45] hfsplus: use bio op accessors mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 20/45] nilfs: use bio op accessors mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 06/45] dm: use op_is_write instead of checking for REQ_WRITE mchristi@redhat.com - 2016-06-05 21:50 +0200
Re: [PATCH 06/45] dm: use op_is_write instead of checking for REQ_WRITE Hannes Reinecke <hare@suse.de> - 2016-06-06 08:20 +0200
[PATCH 19/45] mpage: use bio op accessors mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 16/45] gfs2: use bio op accessors mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 26/45] drbd: use bio op accessors mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 32/45] block: prepare mq request creation to use REQ_OPs mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 27/45] md: use bio op accessors mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 34/45] blkg_rwstat: separate op from flags mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 17/45] xfs: use bio op accessors mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 07/45] bcache: use op_is_write instead of checking for REQ_WRITE mchristi@redhat.com - 2016-06-05 21:50 +0200
Re: [PATCH 07/45] bcache: use op_is_write instead of checking for REQ_WRITE Hannes Reinecke <hare@suse.de> - 2016-06-06 08:20 +0200
[PATCH 31/45] block: prepare request creation/destruction code to use REQ_OPs mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 29/45] xen: use bio op accessors mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 30/45] block: copy bio op to request op mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 25/45] bcache: use bio op accessors mchristi@redhat.com - 2016-06-05 21:50 +0200
Re: [PATCH 25/45] bcache: use bio op accessors Hannes Reinecke <hare@suse.de> - 2016-06-06 08:50 +0200
[PATCH 24/45] dm: use bio op accessors mchristi@redhat.com - 2016-06-05 21:50 +0200
Re: [PATCH 24/45] dm: use bio op accessors Hannes Reinecke <hare@suse.de> - 2016-06-06 08:50 +0200
[PATCH 04/45] fs: have ll_rw_block users pass in op and flags separately mchristi@redhat.com - 2016-06-05 21:50 +0200
[PATCH 11/45] btrfs: have submit_one_bio users use bio op accessors mchristi@redhat.com - 2016-06-05 22:00 +0200
[PATCH 08/45] block, fs, mm, drivers: use bio set/get op accessors mchristi@redhat.com - 2016-06-05 22:00 +0200
Re: [PATCH 08/45] block, fs, mm, drivers: use bio set/get op accessors Hannes Reinecke <hare@suse.de> - 2016-06-06 08:30 +0200
[PATCH 09/45] block discard: use bio set op accessor mchristi@redhat.com - 2016-06-05 22:00 +0200
[PATCH 13/45] btrfs: update __btrfs_map_block for REQ_OP transition mchristi@redhat.com - 2016-06-05 22:00 +0200
[PATCH 12/45] btrfs: use bio op accessors mchristi@redhat.com - 2016-06-05 22:00 +0200
[PATCH 10/45] direct-io: use bio set/get op accessors mchristi@redhat.com - 2016-06-05 22:00 +0200
[PATCH 03/45] fs: have submit_bh users pass in op and flags separately mchristi@redhat.com - 2016-06-05 22:00 +0200
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