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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	SCSI Mailing List <linux-scsi@vger.kernel.org>,
	"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
	James Bottomley <James.Bottomley@SteelEye.com>,
	Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>,
	Dave Jones <davej@redhat.com>, Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH] fix ide-scsi EH locking
Date: Sat, 28 May 2005 00:09:02 +0100	[thread overview]
Message-ID: <1117235334.29624.251.camel@localhost.localdomain> (raw)
In-Reply-To: <42978EF1.5000703@pobox.com>

On Gwe, 2005-05-27 at 22:19, Jeff Garzik wrote:
> Patch untested, but at least the code isn't obviously wrong now...

The abort code check of cmd->serial_number is the only thing I can see
that needs care and that looks safe by the time we hit eh_abort because
the mid level has quiesced the request queue.

eh_reset is whacking on requests but they are the IDE layer requests so
I suspect you want to simply drop the scsi locks for the eh functions
much earlier and use spin_lock_irqsave/restore on the ide lock ?


      reply	other threads:[~2005-05-27 23:11 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-27 21:19 [PATCH] fix ide-scsi EH locking Jeff Garzik
2005-05-27 23:09 ` Alan Cox [this message]

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