linux-kernel - Re: [PATCH] bsg : Add support for io vectors in bsg

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Message-Id: <20080111144249H.fujita.tomonori@lab.ntt.co.jp>
Date:	Fri, 11 Jan 2008 14:42:49 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	pw@....edu
Cc:	James.Bottomley@...senPartnership.com,
	fujita.tomonori@....ntt.co.jp, tomof@....org, deepakrc@...il.com,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bsg : Add support for io vectors in bsg

On Thu, 10 Jan 2008 16:46:05 -0500
Pete Wyckoff <pw@....edu> wrote:

> Is there another async I/O mechanism?  Userspace builds the CDBs,
> just needs some way to drop them in SCSI ML.  BSG is almost perfect
> for this, but doesn't do iovec, leading to lots of memcpy.

syslets?
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