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(parent: ad0eab9) | patch
vfs: fix reference leak in d_prune_aliases()
authorYan, Zheng <zyan@redhat.com>
Wed, 19 Nov 2014 07:50:34 +0000 (15:50 +0800)
committerAl Viro <viro@zeniv.linux.org.uk>
Wed, 19 Nov 2014 18:07:20 +0000 (13:07 -0500)
commit4a7795d35e252f38298980530e01e21867f8f856
tree1ed969cdba05031ff6410a14f32225744b351022tree | snapshot (tar.gz zip)
parentad0eab9293485d1c06237e9249f6d4dfa3d93d4dcommit | diff
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>
fs/dcache.c diff | blob | blame | history