linux-kernel - Re: Asynchronous scsi scanning

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Message-ID: <a781481a0705171204o5b25fafdm36d5970acf9119cd@mail.gmail.com>
Date:	Fri, 18 May 2007 00:34:40 +0530
From:	"Satyam Sharma" <satyam.sharma@...il.com>
To:	"Christoph Hellwig" <hch@...radead.org>,
	"Benjamin LaHaise" <bcrl@...ck.org>,
	"Matthew Wilcox" <matthew@....cx>,
	"Simon Arlott" <simon@...e.lp0.eu>,
	"James Bottomley" <james.bottomley@...eleye.com>,
	"Dave Jones" <davej@...hat.com>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	linux-scsi@...r.kernel.org, kernel-packagers@...r.kernel.org,
	"Robert P. J. Day" <rpjday@...dspring.com>
Subject: Re: Asynchronous scsi scanning

On 5/18/07, Christoph Hellwig <hch@...radead.org> wrote:
> On Fri, May 18, 2007 at 12:17:40AM +0530, Satyam Sharma wrote:
> > However, Ben does have a point that we shouldn't force those
> > using SCSI (and wishing to use the new async scanning
> > feature) to depend on and use sysfs too
>
> yes, we do.  an no, procfs is a much worse filesystem to depend
> on for drivers.

By depend on I meant being forced to build and run it. /proc is
clearly more-or-less standard that almost everybody uses, otoh
users that do not run sysfs are more common.

> if people don't want sysfs they can either do the synchronous scan
> or do their own scan in userspace.

Hmmm, actually those other users could easily write and maintain
a 20-line patch that does the wait for async scans thing for them
using /proc/scsi/scsi in any case.
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