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Groups > linux.kernel > #1414183

[PATCH 17/45] xfs: use bio op accessors

From mchristi@redhat.com
Newsgroups linux.kernel
Subject [PATCH 17/45] xfs: use bio op accessors
Date 2016-06-05 21:50 +0200
Message-ID <rGMdB-2xU-49@gated-at.bofh.it> (permalink)
References <rGM3T-2uj-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Mike Christie <mchristi@redhat.com>

Separate the op from the rq_flag_bits and have xfs
set/get the bio using bio_set_op_attrs/bio_op.

Signed-off-by: Mike Christie <mchristi@redhat.com>
---

v8:
1. Handled changes due to rebase and dropped signed offs due to
upstream changes since last review.

 fs/xfs/xfs_aops.c | 12 ++++--------
 fs/xfs/xfs_buf.c  | 26 ++++++++++++++------------
 2 files changed, 18 insertions(+), 20 deletions(-)

diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 0cd1603..87d2b21 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -438,10 +438,8 @@ xfs_submit_ioend(
 
 	ioend->io_bio->bi_private = ioend;
 	ioend->io_bio->bi_end_io = xfs_end_bio;
-	if (wbc->sync_mode == WB_SYNC_ALL)
-		ioend->io_bio->bi_rw = WRITE_SYNC;
-	else
-		ioend->io_bio->bi_rw = WRITE;
+	bio_set_op_attrs(ioend->io_bio, REQ_OP_WRITE,
+			 (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : 0);
 	/*
 	 * If we are failing the IO now, just mark the ioend with an
 	 * error and finish it. This will run IO completion immediately
@@ -512,10 +510,8 @@ xfs_chain_bio(
 
 	bio_chain(ioend->io_bio, new);
 	bio_get(ioend->io_bio);		/* for xfs_destroy_ioend */
-	if (wbc->sync_mode == WB_SYNC_ALL)
-		ioend->io_bio->bi_rw = WRITE_SYNC;
-	else
-		ioend->io_bio->bi_rw = WRITE;
+	bio_set_op_attrs(ioend->io_bio, REQ_OP_WRITE,
+			  (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : 0);
 	submit_bio(ioend->io_bio);
 	ioend->io_bio = new;
 }
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 0777c67..d8acd37 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1127,7 +1127,8 @@ xfs_buf_ioapply_map(
 	int		map,
 	int		*buf_offset,
 	int		*count,
-	int		rw)
+	int		op,
+	int		op_flags)
 {
 	int		page_index;
 	int		total_nr_pages = bp->b_page_count;
@@ -1166,7 +1167,7 @@ next_chunk:
 	bio->bi_iter.bi_sector = sector;
 	bio->bi_end_io = xfs_buf_bio_end_io;
 	bio->bi_private = bp;
-	bio->bi_rw = rw;
+	bio_set_op_attrs(bio, op, op_flags);
 
 	for (; size && nr_pages; nr_pages--, page_index++) {
 		int	rbytes, nbytes = PAGE_SIZE - offset;
@@ -1210,7 +1211,8 @@ _xfs_buf_ioapply(
 	struct xfs_buf	*bp)
 {
 	struct blk_plug	plug;
-	int		rw;
+	int		op;
+	int		op_flags = 0;
 	int		offset;
 	int		size;
 	int		i;
@@ -1229,14 +1231,13 @@ _xfs_buf_ioapply(
 		bp->b_ioend_wq = bp->b_target->bt_mount->m_buf_workqueue;
 
 	if (bp->b_flags & XBF_WRITE) {
+		op = REQ_OP_WRITE;
 		if (bp->b_flags & XBF_SYNCIO)
-			rw = WRITE_SYNC;
-		else
-			rw = WRITE;
+			op_flags = WRITE_SYNC;
 		if (bp->b_flags & XBF_FUA)
-			rw |= REQ_FUA;
+			op_flags |= REQ_FUA;
 		if (bp->b_flags & XBF_FLUSH)
-			rw |= REQ_FLUSH;
+			op_flags |= REQ_FLUSH;
 
 		/*
 		 * Run the write verifier callback function if it exists. If
@@ -1266,13 +1267,14 @@ _xfs_buf_ioapply(
 			}
 		}
 	} else if (bp->b_flags & XBF_READ_AHEAD) {
-		rw = READA;
+		op = REQ_OP_READ;
+		op_flags = REQ_RAHEAD;
 	} else {
-		rw = READ;
+		op = REQ_OP_READ;
 	}
 
 	/* we only use the buffer cache for meta-data */
-	rw |= REQ_META;
+	op_flags |= REQ_META;
 
 	/*
 	 * Walk all the vectors issuing IO on them. Set up the initial offset
@@ -1284,7 +1286,7 @@ _xfs_buf_ioapply(
 	size = BBTOB(bp->b_io_length);
 	blk_start_plug(&plug);
 	for (i = 0; i < bp->b_map_count; i++) {
-		xfs_buf_ioapply_map(bp, i, &offset, &size, rw);
+		xfs_buf_ioapply_map(bp, i, &offset, &size, op, op_flags);
 		if (bp->b_error)
 			break;
 		if (size <= 0)
-- 
2.7.2

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Thread

[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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