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-raid@vger.kernel.org,
dm-devel@redhat.com, linux-scsi@vger.kernel.org,
drbd-dev@lists.linbit.com
Subject: [Drbd-dev] [PATCH 02/27] block: renumber REQ_OP_WRITE_ZEROES
Date: Wed, 5 Apr 2017 19:21:00 +0200 [thread overview]
Message-ID: <20170405172125.22600-3-hch@lst.de> (raw)
In-Reply-To: <20170405172125.22600-1-hch@lst.de>
Make life easy for implementations that needs to send a data buffer
to the device (e.g. SCSI) by numbering it as a data out command.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
---
include/linux/blk_types.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 67bcf8a5326e..4eae30bfbfca 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -168,7 +168,7 @@ enum req_opf {
/* write the same sector many times */
REQ_OP_WRITE_SAME = 7,
/* write the zero filled sector many times */
- REQ_OP_WRITE_ZEROES = 8,
+ REQ_OP_WRITE_ZEROES = 9,
/* SCSI passthrough using struct scsi_request */
REQ_OP_SCSI_IN = 32,
--
2.11.0
next prev parent reply other threads:[~2017-04-05 17:21 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-05 17:20 [Drbd-dev] always use REQ_OP_WRITE_ZEROES for zeroing offload V2 Christoph Hellwig
2017-04-05 17:20 ` [Drbd-dev] [PATCH 01/27] sd: split sd_setup_discard_cmnd Christoph Hellwig
2017-04-05 17:21 ` Christoph Hellwig [this message]
2017-04-05 17:21 ` [Drbd-dev] [PATCH 03/27] block: implement splitting of REQ_OP_WRITE_ZEROES bios Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 04/27] sd: implement REQ_OP_WRITE_ZEROES Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 05/27] md: support REQ_OP_WRITE_ZEROES Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 06/27] dm io: discards don't take a payload Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 08/27] dm kcopyd: switch to use REQ_OP_WRITE_ZEROES Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 09/27] block: stop using blkdev_issue_write_same for zeroing Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 10/27] block: add a flags argument to (__)blkdev_issue_zeroout Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 11/27] block: add a REQ_NOUNMAP flag for REQ_OP_WRITE_ZEROES Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 12/27] block: add a new BLKDEV_ZERO_NOFALLBACK flag Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 13/27] block_dev: use blkdev_issue_zerout for hole punches Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 14/27] sd: implement unmapping Write Zeroes Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 15/27] nvme: implement REQ_OP_WRITE_ZEROES Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 16/27] zram: " Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 17/27] loop: " Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 18/27] brd: remove discard support Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 19/27] rbd: remove the discard_zeroes_data flag Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 20/27] rsxx: " Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 21/27] mmc: " Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 22/27] block: stop using discards for zeroing Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 23/27] drbd: make intelligent use of blkdev_issue_zeroout Christoph Hellwig
2018-01-13 0:46 ` Eric Wheeler
2018-01-15 12:46 ` Lars Ellenberg
2018-01-15 15:07 ` Mike Snitzer
2018-01-16 8:55 ` Lars Ellenberg
2017-04-05 17:21 ` [Drbd-dev] [PATCH 24/27] drbd: implement REQ_OP_WRITE_ZEROES Christoph Hellwig
2017-04-05 17:21 ` [Drbd-dev] [PATCH 25/27] block: remove the discard_zeroes_data flag Christoph Hellwig
2017-05-01 20:45 ` Bart Van Assche
2017-05-02 6:43 ` Nicholas A. Bellinger
2017-05-02 7:16 ` Nicholas A. Bellinger
2017-05-02 7:23 ` hch
2017-05-03 3:33 ` Nicholas A. Bellinger
2017-05-03 14:33 ` Mike Snitzer
2017-05-05 3:10 ` Nicholas A. Bellinger
2017-05-07 9:22 ` hch
2017-05-09 6:46 ` Nicholas A. Bellinger
2017-05-10 14:06 ` hch
2017-05-11 4:50 ` Nicholas A. Bellinger
2017-05-11 6:26 ` hch
2017-05-11 6:36 ` Nicholas A. Bellinger
2017-04-05 17:21 ` [Drbd-dev] [PATCH 26/27] scsi: sd: Separate zeroout and discard command choices Christoph Hellwig
[not found] ` <58c3d6a6-924e-cc86-1907-a9fd02a39c0e@redhat.com>
2017-04-20 1:34 ` Martin K. Petersen
2017-04-05 17:21 ` [Drbd-dev] [PATCH 27/27] scsi: sd: Remove LBPRZ dependency for discards Christoph Hellwig
2017-04-08 17:26 ` [Drbd-dev] always use REQ_OP_WRITE_ZEROES for zeroing offload V2 Jens Axboe
-- strict thread matches above, loose matches on Subject: below --
2017-04-05 14:21 Christoph Hellwig
2017-04-05 14:21 ` [Drbd-dev] [PATCH 02/27] block: renumber REQ_OP_WRITE_ZEROES Christoph Hellwig
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