| commit | 63f43f55c9bbc14f76b582644019b8a07dc8219a | [log] [tgz] |
|---|---|---|
| author | Li Zefan <lizefan@huawei.com> | Fri Jan 25 16:08:01 2013 +0800 |
| committer | Tejun Heo <tj@kernel.org> | Mon Feb 18 09:08:15 2013 -0800 |
| tree | c9ab6bbf633b6d441c67c3735782b6011afc5b17 | |
| parent | 71b5707e119653039e6e95213f00479668c79b75 [diff] |
cpuset: fix cpuset_print_task_mems_allowed() vs rename() race rename() will change dentry->d_name. The result of this race can be worse than seeing partially rewritten name, but we might access a stale pointer because rename() will re-allocate memory to hold a longer name. It's safe in the protection of dentry->d_lock. v2: check NULL dentry before acquiring dentry lock. Signed-off-by: Li Zefan <lizefan@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org