GIT: unionfs2-2.6.19.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 55f7f416b0c97024881558715e4de26aee48a2bd
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Tue Mar 25 20:00:14 2008 -0400

    patch unionfs-version-update2.patch

commit b06dfe391b2296c9e3e71e299b8a285fd61039df
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Tue Mar 25 19:54:45 2008 -0400

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

commit 2cd8a28942d32846481794faae480791fa50688c
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Mon Mar 24 20:25:19 2008 -0400

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

commit 6c52838c711214c87af2ec4a055b57802abe62c3
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 87fb0831ead81efaa00726f8bbff696bc31e1acc
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:45:31 2008 -0400

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

commit e856009e0c046fcae34919c4cc8689926b916506
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:45:31 2008 -0400

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

commit 0159ae3980d1d3e2220a7c728bcb4ebe40ba2499
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:45:31 2008 -0400

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

commit 73fdaf32df6706447145abf846095d719b9ac980
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:45:31 2008 -0400

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

commit 9dcaeabf6769b325db1072f122742a2b604cba07
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:45:31 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 b8d17895f578924cf1ae42e5170c3f36daefb837
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Sun Mar 23 02:45:31 2008 -0400

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

commit c8dc5563599615b5651534ca7a0ba71587c09787
Author: Erez Zadok <ezk at cs.sunysb.edu>
Date:   Wed Feb 20 17:21:08 2008 -0500

    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>