Messages in this thread Patch in this message | | | Date | Thu, 12 Mar 2009 09:47:35 +0800 | From | Li Zefan <> | Subject | [PATCH] debug cgroup: remove unneeded cgroup_lock |
| |
Since we are in cgroup write handler, so the cgrp is valid, so we don't have to hold cgroup_mutex when calling cgroup_task_count(). One similar example is in cgroup_tasks_open().
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> --- kernel/cgroup_debug.c | 2 -- 1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/kernel/cgroup_debug.c b/kernel/cgroup_debug.c index daca620..0c92d79 100644 --- a/kernel/cgroup_debug.c +++ b/kernel/cgroup_debug.c @@ -40,9 +40,7 @@ static u64 taskcount_read(struct cgroup *cont, struct cftype *cft) { u64 count; - cgroup_lock(); count = cgroup_task_count(cont); - cgroup_unlock(); return count; } -- 1.5.4.rc3
| |