Unionfs: remove whiteout of opened but unlinked file from readonly branch
authorErez Zadok <ezk@cs.sunysb.edu>
Tue, 6 Sep 2011 01:20:36 +0000 (21:20 -0400)
committerErez Zadok <ezk@cs.sunysb.edu>
Tue, 6 Sep 2011 01:20:36 +0000 (21:20 -0400)
commit87176719bcd2d3218925e96cffd8ea842159810f
treebf89d52c36b7df0dba98fd0d65e4d50e3386a61d
parentf290f02717a9fe7803e64f4c4212a4bce741e25d
Unionfs: remove whiteout of opened but unlinked file from readonly branch

If we unlink an opened file in a readonly branch, then we create a whiteout.
But then if if ftruncate it, we copyup a zero-length file.  So we have to
delete the whiteout.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
fs/unionfs/inode.c