Commit 3ec762ad authored by Li Zefan's avatar Li Zefan Committed by Nick Piggin
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cgroups: Fix a lockdep warning at cgroup removal 



Commit 2fd6b7f5 ("fs: dcache scale subdirs") forgot to annotate a dentry
lock, which caused a lockdep warning.

Reported-by: default avatarValdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: default avatarLi Zefan <lizf@cn.fujitsu.com>
parent 7b9337aa

kernel/cgroup.c

+1 −1
Original line number Diff line number Diff line
@@ -912,7 +912,7 @@ static void cgroup_d_remove_dir(struct dentry *dentry) 


	parent = dentry->d_parent;

	spin_lock(&parent->d_lock);

	spin_lock(&dentry->d_lock);

	spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);

	list_del_init(&dentry->d_u.d_child);

	spin_unlock(&dentry->d_lock);

	spin_unlock(&parent->d_lock);