GIT: unionfs2-2.6.18.y: Changes to branch 'master'

[Erez_Zadok]

 Documentation/filesystems/unionfs/concepts.txt |   61 ++++++++++++++
 drivers/md/dm-emc.c                            |   10 +-
 drivers/md/dm-hw-handler.h                     |    2 +-
 drivers/md/dm-mpath.c                          |    6 +-
 drivers/md/dm-mpath.h                          |    4 +-
 drivers/md/dm-path-selector.h                  |   12 ++--
 drivers/md/dm-round-robin.c                    |   12 ++--
 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 +++++++++++++++---------
 18 files changed, 240 insertions(+), 130 deletions(-)

New commits:
commit 77200b694a5094ef9701d825a007cdb830865f93
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Tue Mar 25 20:00:15 2008 -0400

    patch unionfs-version-update2.patch

commit dd277c68155a6066eb28dc095a74be0435981f2c
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Tue Mar 25 19:54:47 2008 -0400

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

commit a354ae7de1575eddf49af31543a6a21fbe9ed688
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Mon Mar 24 20:25:25 2008 -0400

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

commit 71ed0ef15038ced7d4463b29a99d959bb9ae0ec5
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Mon Mar 24 18:34:23 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 6c418f3c2590f595ed719ba88c02b72bda2a7f2f
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:48:16 2008 -0400

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

commit cd1497f71e44517e6bf62f404f6efbb54fb81a6e
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:48:16 2008 -0400

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

commit f322ba87e7ff9df1a89c9de92c89228481646e3e
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:48:16 2008 -0400

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

commit a9aab5d543552c4eeef8b48becd99704909cb118
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:48:16 2008 -0400

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

commit bfa29c62fd5597f31ce4e5f401ffa08cfced769b
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:48:16 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 7695cec4970b04e21e91c1223cda881b22121261
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:48:16 2008 -0400

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

commit c829375c93fd4c24719e0c538b4670e5c5b3b544
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:48:16 2008 -0400

    MD: rename struct path to struct dm_path
    
    Avoid conflict with the VFS's struct path, which was back-ported in Unionfs
    from later kernels.  This renaming to dm_path was done in 2.6.20 and later
    kernels.
    
    Signed-off-by: Erez Zadok <ezk at cs.sunysb.edu>