linux-kernel - Re: Asynchronous scsi scanning

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Message-ID: <a781481a0705151649p4cc61bceqd61d778a67776c7f@mail.gmail.com>
Date:	Wed, 16 May 2007 05:19:40 +0530
From:	"Satyam Sharma" <satyam.sharma@...il.com>
To:	"Arjan van de Ven" <arjan@...ux.intel.com>
Cc:	"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 5/16/07, Arjan van de Ven <arjan@...ux.intel.com> wrote:
> Satyam Sharma wrote:
> >> > >semantics of it (read-only?  read-write?  write-only?
> >
> > Well, it _has_ to be write, don't really care if it's read-write or
> > write-only. I would still prefer read-write, but we can go ahead with
> > write-only too. It doesn't really matter, does it?
>
> just to be devils advocate...
> it should be a read that returns when done,

Heh, yeah. We just need to trigger that scsi_complete_async_scans()
after all ... might as well abuse all intuition on the user's behalf :-)

> and that can be polled

Gaah! :-)

But seriously, though, this sysfs attribute can be implemented
_any which way_. Better for us if we do it the simplest way (and which
taxes the user's intuition the least). Just that Matthew asked so many
questions so I thought I might as well answer them :-)
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