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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: [PATCH 09/25] block: stop using blkdev_issue_write_same for zeroing
Date: Fri, 31 Mar 2017 18:32:57 +0200	[thread overview]
Message-ID: <20170331163313.31821-10-hch@lst.de> (raw)
In-Reply-To: <20170331163313.31821-1-hch@lst.de>

We'll always use the WRITE ZEROES code for zeroing now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 block/blk-lib.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/block/blk-lib.c b/block/blk-lib.c
index e5b853f2b8a2..2a8d638544a7 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -364,10 +364,6 @@ int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
 			return 0;
 	}
 
-	if (!blkdev_issue_write_same(bdev, sector, nr_sects, gfp_mask,
-			ZERO_PAGE(0)))
-		return 0;
-
 	blk_start_plug(&plug);
 	ret = __blkdev_issue_zeroout(bdev, sector, nr_sects, gfp_mask,
 			&bio, discard);
-- 
2.11.0

  parent reply	other threads:[~2017-03-31 16:32 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-31 16:32 always use REQ_OP_WRITE_ZEROES for zeroing offload Christoph Hellwig
2017-03-31 16:32 ` [PATCH 01/25] ѕd: split sd_setup_discard_cmnd Christoph Hellwig
2017-04-05 11:42   ` Martin K. Petersen
2017-03-31 16:32 ` [PATCH 02/25] block: renumber REQ_OP_WRITE_ZEROES Christoph Hellwig
2017-04-05 11:43   ` Martin K. Petersen
2017-03-31 16:32 ` [PATCH 03/25] block: implement splitting of REQ_OP_WRITE_ZEROES bios Christoph Hellwig
     [not found]   ` <20170331163313.31821-4-hch-jcswGhMUV9g@public.gmane.org>
2017-04-05 11:43     ` Martin K. Petersen
2017-04-05 11:43       ` Martin K. Petersen
2017-03-31 16:32 ` [PATCH 04/25] sd: implement REQ_OP_WRITE_ZEROES Christoph Hellwig
     [not found]   ` <20170331163313.31821-5-hch-jcswGhMUV9g@public.gmane.org>
2017-04-05 11:44     ` Martin K. Petersen
2017-04-05 11:44       ` Martin K. Petersen
2017-03-31 16:32 ` [PATCH 05/25] md: support REQ_OP_WRITE_ZEROES Christoph Hellwig
2017-03-31 16:32 ` [PATCH 06/25] dm io: discards don't take a payload Christoph Hellwig
2017-03-31 16:32 ` [PATCH 07/25] dm: support REQ_OP_WRITE_ZEROES Christoph Hellwig
2017-03-31 16:32 ` [PATCH 08/25] dm kcopyd: switch to use REQ_OP_WRITE_ZEROES Christoph Hellwig
2017-03-31 16:32 ` Christoph Hellwig [this message]
     [not found]   ` <20170331163313.31821-10-hch-jcswGhMUV9g@public.gmane.org>
2017-04-05 11:45     ` [PATCH 09/25] block: stop using blkdev_issue_write_same for zeroing Martin K. Petersen
2017-04-05 11:45       ` Martin K. Petersen
2017-03-31 16:32 ` [PATCH 10/25] block: add a flags argument to (__)blkdev_issue_zeroout Christoph Hellwig
     [not found]   ` <20170331163313.31821-11-hch-jcswGhMUV9g@public.gmane.org>
2017-04-05 11:46     ` Martin K. Petersen
2017-04-05 11:46       ` Martin K. Petersen
2017-03-31 16:32 ` [PATCH 11/25] block: add a REQ_UNMAP flag for REQ_OP_WRITE_ZEROES Christoph Hellwig
     [not found]   ` <20170331163313.31821-12-hch-jcswGhMUV9g@public.gmane.org>
2017-04-05 11:46     ` Martin K. Petersen
2017-04-05 11:46       ` Martin K. Petersen
2017-03-31 16:33 ` [PATCH 12/25] block: add a new BLKDEV_ZERO_NOFALLBACK flag Christoph Hellwig
     [not found]   ` <20170331163313.31821-13-hch-jcswGhMUV9g@public.gmane.org>
2017-04-05 11:47     ` Martin K. Petersen
2017-04-05 11:47       ` Martin K. Petersen
2017-03-31 16:33 ` [PATCH 13/25] block_dev: use blkdev_issue_zerout for hole punches Christoph Hellwig
     [not found]   ` <20170331163313.31821-14-hch-jcswGhMUV9g@public.gmane.org>
2017-04-05 11:48     ` Martin K. Petersen
2017-04-05 11:48       ` Martin K. Petersen
2017-03-31 16:33 ` [PATCH 14/25] sd: implement unmapping Write Zeroes Christoph Hellwig
     [not found]   ` <20170331163313.31821-15-hch-jcswGhMUV9g@public.gmane.org>
2017-04-05 11:48     ` Martin K. Petersen
2017-04-05 11:48       ` Martin K. Petersen
2017-03-31 16:33 ` [PATCH 15/25] nvme: implement REQ_OP_WRITE_ZEROES Christoph Hellwig
     [not found]   ` <20170331163313.31821-16-hch-jcswGhMUV9g@public.gmane.org>
2017-04-05 11:49     ` Martin K. Petersen
2017-04-05 11:49       ` Martin K. Petersen
2017-03-31 16:33 ` [PATCH 16/25] zram: " Christoph Hellwig
2017-03-31 16:33 ` [PATCH 17/25] loop: " Christoph Hellwig
2017-03-31 16:33 ` [PATCH 18/25] brd: remove discard support Christoph Hellwig
2017-03-31 16:33 ` [PATCH 19/25] rbd: remove the discard_zeroes_data flag Christoph Hellwig
2017-03-31 16:33 ` [PATCH 20/25] rsxx: " Christoph Hellwig
2017-03-31 16:33 ` [PATCH 21/25] mmc: " Christoph Hellwig
2017-03-31 16:33 ` [PATCH 22/25] block: stop using discards for zeroing Christoph Hellwig
     [not found]   ` <20170331163313.31821-23-hch-jcswGhMUV9g@public.gmane.org>
2017-04-05 11:55     ` Martin K. Petersen
2017-04-05 11:55       ` Martin K. Petersen
2017-03-31 16:33 ` [PATCH 23/25] drbd: make intelligent use of blkdev_issue_zeroout Christoph Hellwig
2017-03-31 16:33 ` [PATCH 24/25] drbd: implement REQ_OP_WRITE_ZEROES Christoph Hellwig
2017-03-31 16:33 ` [PATCH 25/25] block: remove the discard_zeroes_data flag Christoph Hellwig
     [not found]   ` <20170331163313.31821-26-hch-jcswGhMUV9g@public.gmane.org>
2017-04-05 11:56     ` Martin K. Petersen
2017-04-05 11:56       ` Martin K. Petersen
2017-04-03  6:06 ` always use REQ_OP_WRITE_ZEROES for zeroing offload Hannes Reinecke
2017-04-03  6:06   ` Hannes Reinecke
     [not found] ` <20170331163313.31821-1-hch-jcswGhMUV9g@public.gmane.org>
2017-04-05 11:40   ` Martin K. Petersen
2017-04-05 11:40     ` Martin K. Petersen
     [not found]     ` <yq1vaqjt74b.fsf-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2017-04-05 12:08       ` Christoph Hellwig
2017-04-05 12:08         ` Christoph Hellwig

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