Unionfs: fix d_revalidate for corner case
authorErez Zadok <ezk@cs.sunysb.edu>
Tue, 12 Aug 2014 01:51:17 +0000 (21:51 -0400)
committerErez Zadok <ezk@cs.sunysb.edu>
Tue, 12 Aug 2014 01:51:17 +0000 (21:51 -0400)
commitd0afc657e8264dc03a6929928351e6be0e2672a4
tree134c66e5c478b5d6e4ee928d4436d1b93b4fe7f8
parent680ab5f933bc23b3e3738514e1bb5140108cdccb
Unionfs: fix d_revalidate for corner case

In some cases, lower_dentry may goes to NULL.  Return 0 here to mark it
as invalid dentry.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Signed-off-by: Mengyang Li <li.mengyang@stonybrook.edu>
fs/unionfs/dentry.c