[13/35] xfs: set bi_op to REQ_OP

Commit Message

Mike Christie Jan. 5, 2016, 8:53 p.m. UTC

From: Mike Christie <[e-mail]>

This patch has xfs set the bio bi_op to a REQ_OP, and
rq_flag_bits to bi_rw.

Note:
I have run xfs tests on these btrfs patches. There were some failures
with and without the patches. I have not had time to track down why
xfstest fails without the patches.

Signed-off-by: Mike Christie <[e-mail]>
---
 fs/xfs/xfs_aops.c |  3 ++-
 fs/xfs/xfs_buf.c  | 27 +++++++++++++++------------
 2 files changed, 17 insertions(+), 13 deletions(-)

Comments

Dave Chinner Jan. 7, 2016, 3:11 a.m. UTC | #1

On Tue, Jan 05, 2016 at 02:53:16PM -0600, [e-mail] wrote:
> From: Mike Christie <[e-mail]>
> 
> This patch has xfs set the bio bi_op to a REQ_OP, and
> rq_flag_bits to bi_rw.
> 
> Note:
> I have run xfs tests on these btrfs patches. There were some failures
> with and without the patches. I have not had time to track down why
> xfstest fails without the patches.
> 
> Signed-off-by: Mike Christie <[e-mail]>
> ---
>  fs/xfs/xfs_aops.c |  3 ++-
>  fs/xfs/xfs_buf.c  | 27 +++++++++++++++------------
>  2 files changed, 17 insertions(+), 13 deletions(-)

Not sure which patches your note is refering to here.

The XFS change here looks fine.

Acked-by: Dave Chinner <[e-mail]>

-Dave.

Patch

diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index a1052d2..3a00935 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -382,7 +382,8 @@  xfs_submit_ioend_bio(
 	atomic_inc(&ioend->io_remaining);
 	bio->bi_private = ioend;
 	bio->bi_end_io = xfs_end_bio;
-	bio->bi_rw |= (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : WRITE);
+	bio->bi_op = REQ_OP_WRITE;
+	bio->bi_rw |= WB_SYNC_ALL ? WRITE_SYNC : 0;
 	submit_bio(bio);
 }
 
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 644e676..4cfba72 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1124,7 +1124,8 @@  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;
@@ -1163,7 +1164,8 @@  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->bi_op = op;
+	bio->bi_rw |= op_flags;
 
 	for (; size && nr_pages; nr_pages--, page_index++) {
 		int	rbytes, nbytes = PAGE_SIZE - offset;
@@ -1207,7 +1209,8 @@  _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;
@@ -1226,14 +1229,13 @@  _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
@@ -1263,13 +1265,14 @@  _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
@@ -1281,7 +1284,7 @@  _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)