Re: [PATCH] device_cgroup: don't grab mutex in rcu callback

2013-02-14 Thread Tejun Heo
(cc'ing Andrew) Andrew, can you please pick up this one? http://article.gmane.org/gmane.linux.kernel.cgroups/6158/raw Thank you. On Thu, Feb 14, 2013 at 09:46:03AM -0700, Jerry Snitselaar wrote: > commit 103a197 "security/device_cgroup: lock assert fails in > dev_exception_clean()" grabs devcg

[PATCH] device_cgroup: don't grab mutex in rcu callback

2013-02-14 Thread Jerry Snitselaar
commit 103a197 "security/device_cgroup: lock assert fails in dev_exception_clean()" grabs devcgroup_mutex to fix assert failure, but mutex can't be grabbed in rcu callback. Since there shouldn't be any other references when css_free is called, mutex isn't needed for list cleanup in devcgroup_css_fr

[PATCH] device_cgroup: don't grab mutex in rcu callback

2013-01-23 Thread Jerry Snitselaar
commit 103a197 "security/device_cgroup: lock assert fails in dev_exception_clean()" grabs devcgroup_mutex to fix assert failure, but mutex can't be grabbed in rcu callback. Since there shouldn't be any other references when css_free is called, mutex isn't needed for list cleanup in devcgroup_css_fr