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authorFrederic Weisbecker <fweisbec@gmail.com>2012-02-08 03:37:26 +0100
committerTejun Heo <tj@kernel.org>2012-02-21 09:46:43 -0800
commit9a4b430451bb6d8d6b7dcdfbee0e1330b7c475a6 (patch)
treeaa9a075b658a5045779e6d2463715126263f21dc /kernel/cgroup.c
parent761b3ef50e1c2649cffbfa67a4dcb2dcdb7982ed (diff)
cgroup: Remove wrong comment on cgroup_enable_task_cg_list()
Remove the stale comment about RCU protection. Many callers (all of them?) of cgroup_enable_task_cg_list() don't seem to be in an RCU read side critical section. Besides, RCU is not helpful to protect against while_each_thread(). Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Mandeep Singh Baines <msb@chromium.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/cgroup.c')
-rw-r--r--kernel/cgroup.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 865d89a580c..6e4eb431257 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2701,9 +2701,6 @@ static void cgroup_advance_iter(struct cgroup *cgrp,
* using their cgroups capability, we don't maintain the lists running
* through each css_set to its tasks until we see the list actually
* used - in other words after the first call to cgroup_iter_start().
- *
- * The tasklist_lock is not held here, as do_each_thread() and
- * while_each_thread() are protected by RCU.
*/
static void cgroup_enable_task_cg_lists(void)
{