From: keith.busch@intel.com (Keith Busch)
Subject: [PATCH v2 2/5] block: add support for REQ_OP_WRITE_ZEROES
Date: Fri, 18 Nov 2016 10:41:29 -0500 [thread overview]
Message-ID: <20161118154129.GE12377@localhost.localdomain> (raw)
In-Reply-To: <1479421031-6060-1-git-send-email-ckulkarnilinux@gmail.com>
On Thu, Nov 17, 2016@02:17:11PM -0800, Chaitanya Kulkarni wrote:
> From: Chaitanya Kulkarni <chaitanya.kulkarni at hgst.com>
>
> This adds a new block layer operation to zero out a range of
> LBAs. This allows to implement zeroing for devices that don't use
> either discard with a predictable zero pattern or WRITE SAME of zeroes.
> The prominent example of that is NVMe with the Write Zeroes command,
> but in the future this should also help with improving the way
> zeroing discards work.
>
> Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni at hgst.com>
> ---
I think we also to assign queue_limits for stacked devices in
blk_stack_limits. Otherwise, looks good.
next prev parent reply other threads:[~2016-11-18 15:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-17 22:17 [PATCH v2 2/5] block: add support for REQ_OP_WRITE_ZEROES Chaitanya Kulkarni
2016-11-18 2:22 ` Martin K. Petersen
2016-11-18 7:46 ` Christoph Hellwig
2016-11-18 8:25 ` chaitany kulkarni
2016-11-18 15:41 ` Keith Busch [this message]
-- strict thread matches above, loose matches on Subject: below --
2016-11-30 20:28 [PATCH V2 1/5] block: add async variant of blkdev_issue_zeroout Chaitanya Kulkarni
2016-11-30 20:28 ` [PATCH V2 2/5] block: add support for REQ_OP_WRITE_ZEROES Chaitanya Kulkarni
2016-12-01 10:00 ` Christoph Hellwig
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