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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-12 08:18:10 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-12 08:18:10 +0200
commit069a0f32c9ca75ec7f02146711ec1f5840a68cbf (patch)
tree0ee4fe0bdd706333192b26a0c43dda1481862bae /kernel/cgroup/cgroup.c
parentaca4e68acf3a08561f2a413322cbb232edad8764 (diff)
parent32c1431eea4881a6b17bd7c639315010aeefa452 (diff)
Merge 4.12-rc5 into char-misc-next
We want the char/misc driver fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/cgroup/cgroup.c')
-rw-r--r--kernel/cgroup/cgroup.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index c3c9a0e1b3c9..8d4e85eae42c 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -4265,6 +4265,11 @@ static void kill_css(struct cgroup_subsys_state *css)
{
lockdep_assert_held(&cgroup_mutex);
+ if (css->flags & CSS_DYING)
+ return;
+
+ css->flags |= CSS_DYING;
+
/*
* This must happen before css is disassociated with its cgroup.
* See seq_css() for details.