Keith Busch a4afe76b2b dm: inherit QUEUE_FLAG_SG_GAPS flags from underlying queues ...

A DM device must inherit the QUEUE_FLAG_SG_GAPS flags from its
underlying block devices' request queues.

This fixes problems when submitting cloned requests to multipathed
devices requiring virtually contiguous buffers.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

2015-02-11 10:25:46 -05:00

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