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authorDave Chinner <dchinner@redhat.com>2015-02-23 13:44:19 +0300
committerDave Chinner <david@fromorbit.com>2015-02-23 13:44:19 +0300
commitde0e8c20ba3a65b0f15040aabbefdc1999876e6b (patch)
tree1b727063b3d8c6a41e2ccb6a16f5f8134c566f09 /Documentation/smsc_ece1099.txt
parent653c60b633a9019a54a80d64b5ed33ecb214823c (diff)
downloadlinux-de0e8c20ba3a65b0f15040aabbefdc1999876e6b.tar.xz
xfs: use i_mmaplock on read faults
Take the i_mmaplock over read page faults. These come through the ->fault callout, so we need to wrap the generic implementation with the i_mmaplock. While there, add tracepoints for the read fault as it passes through XFS. This gives us a lock order of mmap_sem -> i_mmaplock -> page_lock -> i_lock. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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