[Ocfs2-commits] branch, master, updated. bc522391f10346db5abd813c17b8f0c46a9375f6

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- Log -----------------------------------------------------------------
commit bc522391f10346db5abd813c17b8f0c46a9375f6
Author: Sunil Mushran <sunil.mushran at oracle.com>
Date:   Sat Dec 5 15:34:28 2009 -0800

    ocfs2: Enable NFS support
    
    Mainline commits 6e91ea2bb0b6a3ddf6d4faeb54a9c20d4e20bc42 and
    2596110a3994593f6aa3e2bb76345ad4791b1a14 changed the exportfs api.
    
    This patch adds support for the old exportfs api by enabling export_ops.decode_fh()
    and export_ops.get_dentry().
    
    Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com>
    Acked-by: Joel Becker <joel.becker at oracle.com>

commit dd3c2ca0955f3da3d92c17d05819cdbffd1847a5
Author: Sunil Mushran <sunil.mushran at oracle.com>
Date:   Sat Dec 5 15:34:38 2009 -0800

    ocfs2: Reverse patch that disabled NFS
    
    This patch reverses commit 73359af38a74b691d30e889c707266bf436476cb.
    
    Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com>
    Acked-by: Joel Becker <joel.becker at oracle.com>

commit 786e99927271e037c876f3e9f096fc684dc3d5df
Author: Mark Fasheh <mfasheh at suse.com>
Date:   Sat Dec 5 15:34:22 2009 -0800

    ocfs2: fix sendfile locking
    
    ocfs2_sendfile() was duplicating locking which happens later on in
    ocfs2_readpage(). The double locking would sometimes cause a lockup in nfsd,
    which uses ->sendfile() for fast read support. An easy way to see this is to
    mount an exported ocfs2 fs on a client and initiate two parallel read/write
    dd commands to the same file when there is low memory on the server.
    
    Fix ocfs2_sendfile() so that it only takes and immediately drops the cluster
    lock. This is consistent with the locking in ocfs2_file_splice_read().
    
    Signed-off-by: Mark Fasheh <mfasheh at suse.com>
    Acked-by: Sunil Mushran <sunil.mushran at oracle.com>
    Acked-by: Joel Becker <joel.becker at oracle.com>

-----------------------------------------------------------------------

Summary of changes:
 Config.make.in    |    2 +-
 configure.in      |    7 ++++-
 fs/ocfs2/Makefile |    4 +-
 fs/ocfs2/export.c |   64 +++++++++++++++++++++++++++++++++++++++++++++++++---
 fs/ocfs2/export.h |    5 +--
 fs/ocfs2/file.c   |   11 ++++-----
 fs/ocfs2/super.c  |    2 -
 7 files changed, 75 insertions(+), 20 deletions(-)


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