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From: Keith Busch <kbusch@kernel.org>
To: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Cc: hch@lst.de, linux-nvme@lists.infradead.org, sagi@grimberg.me
Subject: Re: [PATCH] nvmet: allow block device to use buffered I/O
Date: Wed, 30 Oct 2019 15:36:09 +0900	[thread overview]
Message-ID: <20191030063609.GB16863@redsun51.ssa.fujisawa.hgst.com> (raw)
In-Reply-To: <1572409583-3109-1-git-send-email-chaitanya.kulkarni@wdc.com>

On Tue, Oct 29, 2019 at 09:26:23PM -0700, Chaitanya Kulkarni wrote:
> NVMeOF target already has a support to execute requests in the
> buffered I/O mode with file backend. This patch allows block devices
> to be used with file backend code so that buffered I/O parameter can
> be set for a block device backed namespace when newly introduce
> configfs parameter use_vfs=1.

Is the fs overhead so bad that we can't just remove the bio based nvme
target? It seems low enough that having a single path to optimize is
worth considering.

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  reply	other threads:[~2019-10-30  6:36 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-30  4:26 [PATCH] nvmet: allow block device to use buffered I/O Chaitanya Kulkarni
2019-10-30  6:36 ` Keith Busch [this message]
2019-10-31 14:42   ` Christoph Hellwig
2019-10-31 14:45 ` Christoph Hellwig
2019-11-01  6:35   ` Chaitanya Kulkarni
2019-10-31 16:30 ` Sagi Grimberg

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