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| author | Takashi Iwai <tiwai@suse.de> | 2009-03-09 15:21:57 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-03-09 15:21:57 +0100 |
| commit | efdcd41b4e41560375bb34ad8b095bcaa1c3a93f (patch) | |
| tree | 57200ef68bae530776c0c2621c51e9464e1e72f9 /include/linux/cgroup.h | |
| parent | 33dbe6114047496a5b6fee0941c52dad41250043 (diff) | |
| parent | 79c7cdd5441f5d3900c1632adcc8cd2bee35c8da (diff) | |
Merge branch 'topic/vmaster-update' into topic/docbook-fix
Diffstat (limited to 'include/linux/cgroup.h')
| -rw-r--r-- | include/linux/cgroup.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index e267e62827bb..499900d0cee7 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -99,6 +99,7 @@ static inline bool css_tryget(struct cgroup_subsys_state *css) while (!atomic_inc_not_zero(&css->refcnt)) { if (test_bit(CSS_REMOVED, &css->flags)) return false; + cpu_relax(); } return true; } @@ -377,6 +378,7 @@ struct cgroup_subsys { * - initiating hotplug events */ struct mutex hierarchy_mutex; + struct lock_class_key subsys_key; /* * Link to parent, and list entry in parent's children. |