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authorChristoph Hellwig <hch@infradead.org>2011-08-23 14:50:29 +0200
committerJens Axboe <jaxboe@fusionio.com>2011-08-23 14:50:29 +0200
commit65299a3b788bd274bed92f9fa3232082c9f3ea70 (patch)
tree191c0afe31c15ac4c1bab96e0a07fddb097d0de8 /fs/gfs2/log.c
parent5dc06c5a70b79a323152bec7e55783e705767e63 (diff)
block: separate priority boosting from REQ_META
Add a new REQ_PRIO to let requests preempt others in the cfq I/O schedule, and lave REQ_META purely for marking requests as metadata in blktrace. All existing callers of REQ_META except for XFS are updated to also set REQ_PRIO for now. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'fs/gfs2/log.c')
-rw-r--r--fs/gfs2/log.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 85c62923ee2..59864643436 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -624,9 +624,9 @@ static void log_write_header(struct gfs2_sbd *sdp, u32 flags, int pull)
bh->b_end_io = end_buffer_write_sync;
get_bh(bh);
if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags))
- submit_bh(WRITE_SYNC | REQ_META, bh);
+ submit_bh(WRITE_SYNC | REQ_META | REQ_PRIO, bh);
else
- submit_bh(WRITE_FLUSH_FUA | REQ_META, bh);
+ submit_bh(WRITE_FLUSH_FUA | REQ_META | REQ_PRIO, bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh))