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From: Ed Schouten <ed@FreeBSD.org>
Date: Tue, 21 Sep 2010 07:01:00 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/sys/fs/tmpfs tmpfs.h tmpfs_subr.c tmpfs_vnops.c
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ed          2010-09-21 07:01:00 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    sys/fs/tmpfs         tmpfs.h tmpfs_subr.c tmpfs_vnops.c 
  Log:
  SVN rev 212953 on 2010-09-21 07:01:00Z by ed
  
  MFC r211598:
  
    Add support for whiteouts on tmpfs.
  
    Right now unionfs only allows filesystems to be mounted on top of
    another if it supports whiteouts. Even though I have sent a patch to
    daichi@ to let unionfs work without it, we'd better also add support for
    whiteouts to tmpfs.
  
    This patch implements .vop_whiteout and makes necessary changes to
    lookup() and readdir() to take them into account. We must also make sure
    that when adding or removing a file, we honour the componentname's
    DOWHITEOUT and ISWHITEOUT, to prevent duplicate filenames.
  
  Revision  Changes    Path
  1.17.2.2  +4 -1      src/sys/fs/tmpfs/tmpfs.h
  1.23.2.2  +71 -37    src/sys/fs/tmpfs/tmpfs_subr.c
  1.31.2.2  +41 -2     src/sys/fs/tmpfs/tmpfs_vnops.c