xfs: improve mapping type check in xfs_vm_writepage

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Currently we only refuse a "read-only" mapping for writing out
unwritten and delayed buffers, and refuse any other for overwrites.
Improve the checks to require delalloc mappings for delayed buffers,
and unwritten extent mappings for unwritten extents.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>

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Christoph Hellwig 2010-12-10 08:42:16 +00:00 • committed by Alex Elder

parent c9f71f5fc4

commit 85da94c6b4

1 changed files with 12 additions and 9 deletions

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fs/xfs/linux-2.6/xfs_aops.c

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