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authorThomas Gleixner <tglx@linutronix.de>2017-06-20 22:08:32 +0200
committerThomas Gleixner <tglx@linutronix.de>2017-06-20 22:08:32 +0200
commitb50fb7c99217922ea36d6e38bae34d84c0587cad (patch)
tree5f46167ac7fe5cd87bbed8ca8644f32befc5bbae /kernel/cgroup/cgroup.c
parent04c848d398797a626608ff48804d809ae6687163 (diff)
parent41f1830f5a7af77cf5c86359aba3cbd706687e52 (diff)
Merge branch 'linus' into irq/core
Get upstream changes so pending patches won't conflict.
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.