summaryrefslogtreecommitdiffstats
path: root/drivers/md/md.c
diff options
context:
space:
mode:
authorMing Lei <tom.leiming@gmail.com>2017-02-14 23:29:03 +0800
committerShaohua Li <shli@fb.com>2017-02-15 11:24:54 -0800
commitd7a1030839d35c04a620e841f406b9b2a8600041 (patch)
tree293b09d7b92528436daa8953c9202cf669702037 /drivers/md/md.c
parented7ef732ca9f7d6f42be8df6cc7bf4ace3534af3 (diff)
downloadlinux-d7a1030839d35c04a620e841f406b9b2a8600041.tar.bz2
md: fast clone bio in bio_clone_mddev()
Firstly bio_clone_mddev() is used in raid normal I/O and isn't in resync I/O path. Secondly all the direct access to bvec table in raid happens on resync I/O except for write behind of raid1, in which we still use bio_clone() for allocating new bvec table. So this patch replaces bio_clone() with bio_clone_fast() in bio_clone_mddev(). Also kill bio_clone_mddev() and call bio_clone_fast() directly, as suggested by Christoph Hellwig. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'drivers/md/md.c')
-rw-r--r--drivers/md/md.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 0e408bc67904..55e7e7a8714e 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -190,13 +190,6 @@ struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,
}
EXPORT_SYMBOL_GPL(bio_alloc_mddev);
-struct bio *bio_clone_mddev(struct bio *bio, gfp_t gfp_mask,
- struct mddev *mddev)
-{
- return bio_clone_bioset(bio, gfp_mask, mddev->bio_set);
-}
-EXPORT_SYMBOL_GPL(bio_clone_mddev);
-
/*
* We have a system wide 'event count' that is incremented
* on any 'interesting' event, and readers of /proc/mdstat