GIT: unionfs2-2.6.21.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 a0e22d09abd368e15f05f5b6ebaa9d58f403dc71
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Tue Mar 25 20:00:14 2008 -0400

    patch unionfs-version-update2.patch

commit ec1541a29fff5cfabc3560a1b4a3ab4014912ddb
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Tue Mar 25 19:54:35 2008 -0400

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

commit 0bf2a62c6aef6a85c679c4c50e92530743391883
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Mon Mar 24 20:25:13 2008 -0400

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

commit b41c70726081d23eb36558cc9efed8d7890666ae
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 b53b9bfb0f365365d99f297d64203335cb0de8b6
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:40:16 2008 -0400

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

commit 4f73410f29b2d7870eb860232825088e10a3465a
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:40:16 2008 -0400

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

commit 60ba0de9ccec7826a229434513e7c1501d02244f
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:40:16 2008 -0400

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

commit 84e258d66a8de0bb891ea65c2eb9722553b6c3fd
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:40:16 2008 -0400

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

commit 8294924c78410c0420a5caaaa6e2106a4a5eda7d
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:40:16 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 57a05388c6668cf4afa1cca52156d821b47514e2
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:40:16 2008 -0400

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