diff options
| author | Dan Schatzberg <schatzberg.dan@gmail.com> | 2021-06-28 19:38:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-29 10:53:50 -0700 |
| commit | c74d40e8b5e2ac5eee1ca45b12d3e174915f1d88 (patch) | |
| tree | 08727901d2124b15bc22b56335ce191f498808c3 /drivers/block/loop.h | |
| parent | 04f94e3fbe1afcb815d7c7ace78c6779772aa837 (diff) | |
loop: charge i/o to mem and blk cg
The current code only associates with the existing blkcg when aio is used
to access the backing file. This patch covers all types of i/o to the
backing file and also associates the memcg so if the backing file is on
tmpfs, memory is charged appropriately.
This patch also exports cgroup_get_e_css and int_active_memcg so it can be
used by the loop module.
Link: https://lkml.kernel.org/r/20210610173944.1203706-4-schatzberg.dan@gmail.com
Signed-off-by: Dan Schatzberg <schatzberg.dan@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Cc: Chris Down <chris@chrisdown.name>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/block/loop.h')
| -rw-r--r-- | drivers/block/loop.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/block/loop.h b/drivers/block/loop.h index f81c01bde5c0..1988899db63a 100644 --- a/drivers/block/loop.h +++ b/drivers/block/loop.h @@ -77,7 +77,8 @@ struct loop_cmd { long ret; struct kiocb iocb; struct bio_vec *bvec; - struct cgroup_subsys_state *css; + struct cgroup_subsys_state *blkcg_css; + struct cgroup_subsys_state *memcg_css; }; /* Support for loadable transfer modules */ |