OpenAFS Master Repository branch, openafs-stable-1_4_x, updated. abdf72bc87ec942b1d6ec8f84a4d3ea18c1205a9

[Gerrit Code Review]

The following commit has been merged in the openafs-stable-1_4_x branch:
commit abdf72bc87ec942b1d6ec8f84a4d3ea18c1205a9
Author: Marc Dionne <marc.c.dionne@gmail.com>
Date:   Sun Nov 1 16:03:17 2009 -0500

    Linux: Avoid deadlock in readdir - release GLOCK for filldir
    
    The GLOCK is held while calling the filldir function in afs_linux_readdir().
    If this function causes a page fault, and in particular if this fault
    involves AFS, we're in trouble as we'll eventually deadlock in the
    readpage code.
    A simple test case for this is to call the getdents syscall on an
    AFS directory with a buffer that is part of an mmaped AFS file.
    
    This is already the case in the master branch; the change was part of
    the merge of the NFS translator code.
    
    FIXES 125555
    
    Change-Id: I829838e45f94921d22335154587216f7842e3955
    Reviewed-on: http://gerrit.openafs.org/760
    Tested-by: Marc Dionne <marc.c.dionne@gmail.com>
    Reviewed-by: Simon Wilkinson <sxw@inf.ed.ac.uk>
    Reviewed-by: Derrick Brashear <shadow@dementia.org>

 src/afs/LINUX/osi_vnodeops.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

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