tree 1ed969cdba05031ff6410a14f32225744b351022
parent ad0eab9293485d1c06237e9249f6d4dfa3d93d4d
author Yan, Zheng <zyan@redhat.com> 1416383434 +0800
committer Al Viro <viro@zeniv.linux.org.uk> 1416420440 -0500

vfs: fix reference leak in d_prune_aliases()

In "d_prune_alias(): just lock the parent and call __dentry_kill()" the old
dget + d_drop + dput has been replaced with lock_parent + __dentry_kill;
unfortunately, dput() does more than just killing dentry - it also drops the
reference to parent.  New variant leaks that reference and needs dput(parent)
after killing the child off.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>