GIT: unionfs2-2.6.20.y: Changes to branch 'master'

[Erez_Zadok]

 Documentation/filesystems/unionfs/concepts.txt |   61 ++++++++++++++
 fs/unionfs/Makefile                            |    2 +-
 fs/unionfs/commonfops.c                        |   32 +++-----
 fs/unionfs/dentry.c                            |    2 +-
 fs/unionfs/dirfops.c                           |   18 +++--
 fs/unionfs/file.c                              |   30 ++++---
 fs/unionfs/inode.c                             |    3 +-
 fs/unionfs/lookup.c                            |   10 +--
 fs/unionfs/main.c                              |    7 ++-
 fs/unionfs/super.c                             |   30 ++++---
 fs/unionfs/union.h                             |   22 +++--
 fs/unionfs/unlink.c                            |  107 +++++++++++++++---------
 12 files changed, 217 insertions(+), 107 deletions(-)

New commits:
commit 8af11db10bf0cba8b62c0ed34bb33e5335955497
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Tue Mar 25 20:00:14 2008 -0400

    patch unionfs-version-update2.patch

commit 1c1d49192125ccee9269b51c31ebf8edd7b10125
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Tue Mar 25 19:54:41 2008 -0400

    Unionfs: do not over-decrement lower superblock refs on remount
    
    Signed-off-by: Erez Zadok <ezk at cs.sunysb.edu>

commit 9f31fceb2496fb16e8764fba9996161d4c4a5c28
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Mon Mar 24 20:25:16 2008 -0400

    Unionfs: release 2.3
    
    Signed-off-by: Erez Zadok <ezk at cs.sunysb.edu>

commit d094b23a2ef3cf9fa2b0f9e890b2ad77ef560402
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Mon Mar 24 18:34:22 2008 -0400

    Unionfs: display mount point name along with generation number
    
    CC: Dave Miller <justdave at mozilla.com>
    
    Signed-off-by: Erez Zadok <ezk at cs.sunysb.edu>

commit 08d3f732f3a59f4f0c55a4d96fb7b84ea22f9afc
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:41:17 2008 -0400

    Unionfs: document reasons for opaque directories
    
    Signed-off-by: Erez Zadok <ezk at cs.sunysb.edu>

commit a65aa7a2fccabe986194edbc6b99148f2ca9a61e
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:41:17 2008 -0400

    Unionfs: use noinline_for_stack
    
    Signed-off-by: Erez Zadok <ezk at cs.sunysb.edu>

commit e4798d1edaa39c6a2fa791887708ba76d3fc0334
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:41:17 2008 -0400

    Unionfs: use __func__ instead of __FUNCTION__
    
    Signed-off-by: Erez Zadok <ezk at cs.sunysb.edu>

commit a35639a606cbe262de038ad78e13ad952e6d549b
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:41:17 2008 -0400

    Unionfs: don't copy parent inode times in setattr
    
    Signed-off-by: Erez Zadok <ezk at cs.sunysb.edu>

commit d6bca0d48771234eb22d333c9ce5f2c6a819594c
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:41:17 2008 -0400

    Unionfs: reduce number of whiteouts by deleting all instances of files
    
    Optimize the unlinking of non-dir objects in unionfs by deleting all
    possible lower inode objects from all writable lower branches.  This may
    consume a bit more processing, but on average reduces overall inode
    consumption and further saves a lot by reducing the total number of
    whiteouts needed.  We create a whiteout now only if we could not delete all
    lower objects, or if one of the lower branches was explicitly marked
    read-only.
    
    Signed-off-by: Himanshu Kanda <hkanda at cs.sunysb.edu>
    Signed-off-by: Erez Zadok <ezk at cs.sunysb.edu>

commit 0da8dfca91f22792a4c4d8978c30fc007ab69eab
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:41:17 2008 -0400

    Unionfs: lock our dentry in file operations
    
    Signed-off-by: Erez Zadok <ezk at cs.sunysb.edu>