The patch titled
debug cgroup: remove unneeded cgroup_lock
has been removed from the -mm tree. Its filename was
debug-cgroup-remove-unneeded-cgroup_lock.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: debug cgroup: remove unneeded cgroup_lock
From: Li Zefan <lizf@xxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxx>
Acked-by: Paul Menage <menage@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/cgroup_debug.c | 2 --
1 file changed, 2 deletions(-)
diff -puN kernel/cgroup_debug.c~debug-cgroup-remove-unneeded-cgroup_lock kernel/cgroup_debug.c
--- a/kernel/cgroup_debug.c~debug-cgroup-remove-unneeded-cgroup_lock
+++ a/kernel/cgroup_debug.c
@@ -40,9 +40,7 @@ static u64 taskcount_read(struct cgroup
{
u64 count;
- cgroup_lock();
count = cgroup_task_count(cont);
- cgroup_unlock();
return count;
}
_
Patches currently in -mm which might be from lizf@xxxxxxxxxxxxxx are
origin.patch
linux-next.patch
cls_cgroup-remove-unneeded-cgroup_lock.patch
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