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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/ext3/namei.c
parent5dc06c5a70b79a323152bec7e55783e705767e63 (diff)
downloadop-kernel-dev-65299a3b788bd274bed92f9fa3232082c9f3ea70.zip
op-kernel-dev-65299a3b788bd274bed92f9fa3232082c9f3ea70.tar.gz
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/ext3/namei.c')
-rw-r--r--fs/ext3/namei.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index c7d4032..0629e09 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -922,7 +922,8 @@ restart:
bh = ext3_getblk(NULL, dir, b++, 0, &err);
bh_use[ra_max] = bh;
if (bh)
- ll_rw_block(READ | REQ_META, 1, &bh);
+ ll_rw_block(READ | REQ_META | REQ_PRIO,
+ 1, &bh);
}
}
if ((bh = bh_use[ra_ptr++]) == NULL)
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