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author	Christoph Hellwig <hch@lst.de>
	Wed, 5 Apr 2017 17:21:22 +0000 (19:21 +0200)
committer	Jens Axboe <axboe@fb.com>
	Sat, 8 Apr 2017 17:25:38 +0000 (11:25 -0600)
commit	45c21793a6601b29926d67f7a07fe4077a45072e
tree	e4ece67aa634a002b696697d904f5340b13fe970	tree \| snapshot
parent	0dbed96a3cc9786bc4814dab98a7218753bde934	commit \| diff

drbd: implement REQ_OP_WRITE_ZEROES

It seems like DRBD assumes its on the wire TRIM request always zeroes data.
Use that fact to implement REQ_OP_WRITE_ZEROES.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

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drivers/block/drbd/drbd_main.c		diff \| blob \| blame \| history
drivers/block/drbd/drbd_nl.c		diff \| blob \| blame \| history
drivers/block/drbd/drbd_receiver.c		diff \| blob \| blame \| history
drivers/block/drbd/drbd_req.c		diff \| blob \| blame \| history
drivers/block/drbd/drbd_worker.c		diff \| blob \| blame \| history