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(parent: e2b0989) | patch
blkcg: change blkg reference counting to use percpu_ref
authorDennis Zhou (Facebook) <dennisszhou@gmail.com>
Tue, 11 Sep 2018 18:41:36 +0000 (14:41 -0400)
committerJens Axboe <axboe@kernel.dk>
Sat, 22 Sep 2018 02:29:18 +0000 (20:29 -0600)
commitb3b9f24f5fcc099c41f7dc1d02350635830888e5
treef5d5e1a689c0e7ae5d99625a75fd5235c2f21fe8tree | snapshot
parente2b0989954ae7c80609f77e7ce203bea6d2c54e1commit | diff
blkcg: change blkg reference counting to use percpu_ref

Now that every bio is associated with a blkg, this puts the use of
blkg_get, blkg_try_get, and blkg_put on the hot path. This switches over
the refcnt in blkg to use percpu_ref.

Signed-off-by: Dennis Zhou <dennisszhou@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-cgroup.c diff | blob | history
include/linux/blk-cgroup.h diff | blob | history
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