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authorMichal Hocko <mhocko@suse.cz>2011-07-08 16:39:41 +0400
committerJiri Kosina <jkosina@suse.cz>2011-07-09 00:21:58 +0400
commitd8bf4ca9ca9576548628344c9725edd3786e90b1 (patch)
treedf338f50a5af6bc3651bd863b79fa91e6b1e9e20 /include/linux/cgroup.h
parenteb032b9837a958e21ca000358a5bde5e17192ddb (diff)
downloadlinux-d8bf4ca9ca9576548628344c9725edd3786e90b1.tar.xz
rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check
Since ca5ecddf (rcu: define __rcu address space modifier for sparse) rcu_dereference_check use rcu_read_lock_held as a part of condition automatically so callers do not have to do that as well. Signed-off-by: Michal Hocko <mhocko@suse.cz> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'include/linux/cgroup.h')
-rw-r--r--include/linux/cgroup.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index ab4ac0ccb857..da7e4bc34e8c 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -539,7 +539,6 @@ static inline struct cgroup_subsys_state *cgroup_subsys_state(
*/
#define task_subsys_state_check(task, subsys_id, __c) \
rcu_dereference_check(task->cgroups->subsys[subsys_id], \
- rcu_read_lock_held() || \
lockdep_is_held(&task->alloc_lock) || \
cgroup_lock_is_held() || (__c))