linux-kernel - Re: [PATCH 1/3] nbd: support FLUSH requests

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Message-ID: <CAECXXi48FL94m=hUZYRWgS=5Z3R1J5oZsOjX65X6utfZdBafnA@mail.gmail.com>
Date:	Tue, 12 Feb 2013 17:07:41 -0500
From:	Paul Clements <paul.clements@...sios.com>
To:	Paolo Bonzini <pbonzini@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Alex Bligh <alex@...x.org.uk>,
	nbd-general@...ts.sf.net, Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 1/3] nbd: support FLUSH requests

On Tue, Feb 12, 2013 at 11:06 AM, Paolo Bonzini <pbonzini@...hat.com> wrote:
> From: Alex Bligh <alex@...x.org.uk>
>
> The NBD device does not support writeback caching, thus it is not safe
> against power losses unless the client opens the target with O_DSYNC or
> O_SYNC.
>
> Add support for a new flag that the server can pass.  If the flag is
> enabled, we translate REQ_FLUSH requests into the NBD_CMD_FLUSH
> command.
>
> Cc: <nbd-general@...ts.sf.net>
> Cc: Paul Clements <Paul.Clements@...eleye.com>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Signed-off-by: Alex Bligh <alex@...x.org.uk>

Looks good.

Acked-by: Paul.Clements@...eleye.com
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