xfs: xfs_filemap_pmd_fault treats read faults as write faults

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The code initially committed didn't have the same checks for write
faults as the dax_pmd_fault code and hence treats all faults as
write faults. We can get read faults through this path because they
is no pmd_mkwrite path for write faults similar to the normal page
fault path. Hence we need to ensure that we only do c/mtime updates
on write faults, and freeze protection is unnecessary for read
faults.

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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Dave Chinner 2015-11-03 12:37:02 +11:00 • committed by Dave Chinner

parent 3af4928585

commit 13ad4fe3e0

1 changed files with 16 additions and 4 deletions

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fs/xfs/xfs_file.c

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