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net, cgroup: cgroup_sk_updat_lock was missing initializer

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bd1060a1d6 ("sock, cgroup: add sock->sk_cgroup") added global
spinlock cgroup_sk_update_lock but erroneously skipped initializer
leading to uninitialized spinlock warning.  Fix it by using
DEFINE_SPINLOCK().

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Dexuan Cui <decui@microsoft.com>
Fixes: bd1060a1d6 ("sock, cgroup: add sock->sk_cgroup")
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tejun Heo 2015-12-14 11:24:06 -05:00 committed by David S. Miller
parent cb4396edd8
commit 3fa4cc9c2d
1 changed files with 1 additions and 1 deletions
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kernel/cgroup.c
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@ -5790,7 +5790,7 @@ EXPORT_SYMBOL_GPL(cgroup_get_from_path);
#if defined(CONFIG_CGROUP_NET_PRIO) || defined(CONFIG_CGROUP_NET_CLASSID)
spinlock_t cgroup_sk_update_lock;
DEFINE_SPINLOCK(cgroup_sk_update_lock);
static bool cgroup_sk_alloc_disabled __read_mostly;
void cgroup_sk_alloc_disable(void)