From: hch@lst.de (Christoph Hellwig)
Subject: [PATCH] nvme-pci: Add Write Zero support to Intel 660p
Date: Thu, 1 Nov 2018 06:27:49 +0100 [thread overview]
Message-ID: <20181101052749.GA4349@lst.de> (raw)
In-Reply-To: <20181029152401.GA16336@localhost.localdomain>
On Mon, Oct 29, 2018@09:24:01AM -0600, Keith Busch wrote:
> > The 'Deallocate Logical Block Features' bits 0 and 1 only tell what
> > is read back from deallocated logic blocks, but it does not guarantee
> > that all blocks a DSM deallocate is called on are actually deallocated.
>
> Sure, but whether the requested blocks are deallocated or not is
> irrelevant. We're only using this feature here for its deterministic
> read behavior.
I can't parse this.
next prev parent reply other threads:[~2018-11-01 5:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-26 22:41 [PATCH] nvme-pci: Add Write Zero support to Intel 660p Gwendal Grignou
2018-10-26 22:58 ` Keith Busch
2018-10-27 7:44 ` Christoph Hellwig
2018-10-27 9:19 ` Chaitanya Kulkarni
2018-10-29 15:24 ` Keith Busch
2018-11-01 5:27 ` Christoph Hellwig [this message]
2018-11-01 14:38 ` Keith Busch
2018-11-02 6:08 ` Christoph Hellwig
2018-11-02 14:21 ` Keith Busch
2018-11-03 8:21 ` Christoph Hellwig
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