xfs: disable map_sync for async flush

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Dont support 'MAP_SYNC' with non-DAX files and DAX files
with asynchronous dax_device. Virtio pmem provides
asynchronous host page cache flush mechanism. We don't
support 'MAP_SYNC' with virtio pmem and xfs.

Signed-off-by: Pankaj Gupta <pagupta@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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Pankaj Gupta 2019-07-05 19:33:28 +05:30 • committed by Dan Williams

parent e46bfc3f03

commit b21fec4140

1 changed files with 6 additions and 3 deletions

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fs/xfs/xfs_file.c

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