| commit | a38eb630fa224d6fba8c14a4063174bc5e0f63bb | [log] [tgz] |
|---|---|---|
| author | Vivek Goyal <vgoyal@redhat.com> | Tue Oct 25 15:48:12 2011 +0200 |
| committer | Jens Axboe <axboe@kernel.dk> | Tue Oct 25 15:48:12 2011 +0200 |
| tree | b86cb5b0aaa4b6d45d798b5155ed2089177f8206 | |
| parent | e060f00beee23568fe2c4faf1e88ff22edefd7b2 [diff] |
blk-throttle: Take blkcg->lock while traversing blkcg->policy_list blkcg->policy_list is protected by blkcg->lock. Its not rcu protected list. So even for readers, they need to take blkcg->lock. There are few functions which were reading the list without taking lock. Fix it. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>