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(parent: 3c96cb3) | patch
blkcg: shoot down blkgs if all policies are deactivated
authorTejun Heo <tj@kernel.org>
Fri, 13 Apr 2012 20:11:35 +0000 (13:11 -0700)
committerJens Axboe <axboe@kernel.dk>
Fri, 20 Apr 2012 08:06:06 +0000 (10:06 +0200)
commit6d18b008daf46bcd82b8ae250aae0785f9714096
treee70e66ce74220d5a0c7382acd20efbd4835c8f77tree | snapshot (tar.gz zip)
parent3c96cb32d318f323c1bf972a4c66821f8499e34dcommit | diff
blkcg: shoot down blkgs if all policies are deactivated

There's no reason to keep blkgs around if no policy is activated for
the queue.  This patch moves queue locking out of blkg_destroy_all()
and call it from blkg_deactivate_policy() on deactivation of the last
policy on the queue.

This change was suggested by Vivek.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-cgroup.c diff | blob | blame | history