tree 9ce764ee1fe3d95126fbe5c7b634381bedaedbf4
parent 469dbc9d909dd583a1762064f7f9f54eee6f6f01
author Al Viro <viro@zeniv.linux.org.uk> 1445948072 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> 1445949223 -0700

vfs: umount_tree() might be called on subtree that had never made it

__mnt_make_shortterm() in there undoes the effect of __mnt_make_longterm()
we'd done back when we set ->mnt_ns non-NULL; it should not be done to
vfsmounts that had never gone through commit_tree() and friends.  Kudos to
lczerner for catching that one...

CR's-Fixed: 914867
Change-Id: I6022d463213413d3849e75f57f552b4cff0a6c57
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Git-commit: 63d37a84ab6004c235314ffd7a76c5eb28c2fae0
Git-repo: https://android.googlesource.com/kernel/common/
Signed-off-by: Swetha Chikkaboraiah <schikk@codeaurora.org>