diff options
| author | Christoph Hellwig <hch@infradead.org> | 2011-08-23 08:50:29 -0400 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-08-23 08:50:29 -0400 |
| commit | 65299a3b788bd274bed92f9fa3232082c9f3ea70 (patch) | |
| tree | 191c0afe31c15ac4c1bab96e0a07fddb097d0de8 /fs/gfs2/log.c | |
| parent | 5dc06c5a70b79a323152bec7e55783e705767e63 (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.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c index 85c62923ee29..598646434362 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) | |||
| 624 | bh->b_end_io = end_buffer_write_sync; | 624 | bh->b_end_io = end_buffer_write_sync; |
| 625 | get_bh(bh); | 625 | get_bh(bh); |
| 626 | if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags)) | 626 | if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags)) |
| 627 | submit_bh(WRITE_SYNC | REQ_META, bh); | 627 | submit_bh(WRITE_SYNC | REQ_META | REQ_PRIO, bh); |
| 628 | else | 628 | else |
| 629 | submit_bh(WRITE_FLUSH_FUA | REQ_META, bh); | 629 | submit_bh(WRITE_FLUSH_FUA | REQ_META | REQ_PRIO, bh); |
| 630 | wait_on_buffer(bh); | 630 | wait_on_buffer(bh); |
| 631 | 631 | ||
| 632 | if (!buffer_uptodate(bh)) | 632 | if (!buffer_uptodate(bh)) |