| commit | 687b0ad2751ca8ea418396fa780e22571fba76a8 | [log] [tgz] |
|---|---|---|
| author | Kent Overstreet <kmo@daterainc.com> | Mon Jan 06 13:13:26 2014 -0800 |
| committer | Tejun Heo <tj@kernel.org> | Tue Jan 21 04:40:56 2014 -0500 |
| tree | 5603037cfd39eef273ec61186e37f9df000fce6f | |
| parent | 6ce4eac1f600b34f2f7f58f9cd8f0503d79e42ae [diff] |
percpu-refcount: Add a WARN() for ref going negative AIO had a missing get, which led to an ioctx leak - after percpu_ref_kill() the ref was 0 so percpu_ref_put() never saw it hit 0. This wasn't noticed at the time because it all happened completely silently, this adds a WARN() which would've caught the aio bug. tj: Used WARN_ONCE() instead of WARN(). Signed-off-by: Kent Overstreet <kmo@daterainc.com> Signed-off-by: Tejun Heo <tj@kernel.org>