tree 9786e45e2262a1c38da7e331fb415ec5a1ea06ea
parent 01306a5219e9326650946b4429d4fb7d8012da51
author Al Viro <viro@zeniv.linux.org.uk> 1432868959 -0400
committer chrmhoffmann <chrmhoffmann@gmail.com> 1532289010 +0200

d_walk() might skip too much

commit 2159184ea01e4ae7d15f2017e296d4bc82d5aeb0 upstream.

when we find that a child has died while we'd been trying to ascend,
we should go into the first live sibling itself, rather than its sibling.

Off-by-one in question had been introduced in "deal with deadlock in
d_walk()" and the fix needs to be backported to all branches this one
has been backported to.

Change-Id: Iec3eb9845fed3b62d11ce2cca3c090c6f46fc4e2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Zefan Li <lizefan@huawei.com>