From mboxrd@z Thu Jan  1 00:00:00 1970
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From: Christoph Hellwig <hch@lst.de>
To: axboe@kernel.dk,
	martin.petersen@oracle.com,
	agk@redhat.com,
	snitzer@redhat.com,
	shli@kernel.org,
	philipp.reisner@linbit.com,
	lars.ellenberg@linbit.com
Cc: linux-block@vger.kernel.org,
	linux-scsi@vger.kernel.org,
	drbd-dev@lists.linbit.com,
	dm-devel@redhat.com,
	linux-raid@vger.kernel.org
Subject: always use REQ_OP_WRITE_ZEROES for zeroing offload
Date: Fri, 31 Mar 2017 18:32:48 +0200
Message-Id: <20170331163313.31821-1-hch@lst.de>
List-ID: <linux-block@vger.kernel.org>

This series makes REQ_OP_WRITE_ZEROES the only zeroing offload
supported by the block layer, and switches existing implementations
of REQ_OP_DISCARD that correctly set discard_zeroes_data to it,
removes incorrect discard_zeroes_data, and also switches WRITE SAME
based zeroing in SCSI to this new method.

The series is against the block for-next tree.

A git tree is also avaiable at:

    git://git.infradead.org/users/hch/block.git discard-rework

Gitweb:

    http://git.infradead.org/users/hch/block.git/shortlog/refs/heads/discard-rework