[Ocfs2-commits] branch, master, updated. ocfs2-1.4.0-143-g2d561d3

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- Log -----------------------------------------------------------------
commit 2d561d3636c80af24063a74ae8c817661c574d78
Author: Mark Fasheh <mfasheh at suse.com>
Date:   Thu Dec 3 16:57:39 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>

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

Summary of changes:
 fs/ocfs2/file.c |   11 +++++------
 1 files changed, 5 insertions(+), 6 deletions(-)


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