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authorMike Snitzer <snitzer@kernel.org>2022-03-24 23:35:25 +0300
committerJens Axboe <axboe@kernel.dk>2022-04-18 01:49:40 +0300
commitb53f3dcd705e52a07bd0311870dbfb6842e88c91 (patch)
tree0178a6d8ffcda464a458ae3f6ba7a21b337c01f2 /block/bio.c
parent0df71650c051ab106c921de257f4b38e9e3dd251 (diff)
downloadlinux-b53f3dcd705e52a07bd0311870dbfb6842e88c91.tar.xz
block: allow use of per-cpu bio alloc cache by block drivers
Refine per-cpu bio alloc cache interfaces so that DM and other block drivers can properly create and use the cache: DM uses bioset_init_from_src() to do its final bioset initialization, so must update bioset_init_from_src() to set BIOSET_PERCPU_CACHE if %src bioset has a cache. Also move bio_clear_polled() to include/linux/bio.h to allow users outside of block core. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20220324203526.62306-3-snitzer@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bio.c')
-rw-r--r--block/bio.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/block/bio.c b/block/bio.c
index c67f47c6cc8c..643a3a052c7e 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1767,6 +1767,8 @@ int bioset_init_from_src(struct bio_set *bs, struct bio_set *src)
flags |= BIOSET_NEED_BVECS;
if (src->rescue_workqueue)
flags |= BIOSET_NEED_RESCUER;
+ if (src->cache)
+ flags |= BIOSET_PERCPU_CACHE;
return bioset_init(bs, src->bio_pool.min_nr, src->front_pad, flags);
}