From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: axboe@kernel.dk, linux-raid@vger.kernel.org,
martin.petersen@oracle.com, snitzer@redhat.com,
philipp.reisner@linbit.com, linux-block@vger.kernel.org,
dm-devel@redhat.com, linux-scsi@vger.kernel.org,
lars.ellenberg@linbit.com, shli@kernel.org,
Christoph Hellwig <hch@lst.de>,
agk@redhat.com, drbd-dev@lists.linbit.com
Subject: Re: [Drbd-dev] [PATCH 26/27] scsi: sd: Separate zeroout and discard command choices
Date: Wed, 19 Apr 2017 21:34:18 -0400 [thread overview]
Message-ID: <yq1a87bsvz9.fsf@oracle.com> (raw)
In-Reply-To: <58c3d6a6-924e-cc86-1907-a9fd02a39c0e@redhat.com> (Paolo Bonzini's message of "Wed, 19 Apr 2017 16:56:31 +0200")
Paolo,
> Should this be conditional on lbprz, lbpws, lbpws10 and max_ws_blocks?
It is intentional that things can be overridden from userland for
devices that report the "wrong" thing. We do the same for discard so
people can set up udev rules.
--
Martin K. Petersen Oracle Linux Engineering
next prev parent reply other threads:[~2017-04-20 1:34 UTC|newest]
Thread overview: 46+ 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 ` [Drbd-dev] [PATCH 02/27] block: renumber REQ_OP_WRITE_ZEROES Christoph Hellwig
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 [this message]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=yq1a87bsvz9.fsf@oracle.com \
--to=martin.petersen@oracle.com \
--cc=agk@redhat.com \
--cc=axboe@kernel.dk \
--cc=dm-devel@redhat.com \
--cc=drbd-dev@lists.linbit.com \
--cc=hch@lst.de \
--cc=lars.ellenberg@linbit.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-raid@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=pbonzini@redhat.com \
--cc=philipp.reisner@linbit.com \
--cc=shli@kernel.org \
--cc=snitzer@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox