Unionfs: remove whiteout of opened but unlinked file from readonly branch
authorErez Zadok <ezk@cs.sunysb.edu>
Tue, 6 Sep 2011 01:20:35 +0000 (21:20 -0400)
committerErez Zadok <ezk@cs.sunysb.edu>
Tue, 6 Sep 2011 01:20:35 +0000 (21:20 -0400)
commit851b4792afc8c7f030b3f23e5b01636c40056f33
treee07ae429dfdd44906de39c971977b4863d24d26f
parentaa076da7279fe1137710827dc6ed736d3ef6927f
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