linux-kernel - Re: [PATCH 2/5] Subject: [PATCH] pata_efar: add locking for parallel scanning

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Message-ID: <4B8C1F9E.8040703@garzik.org>
Date:	Mon, 01 Mar 2010 15:12:14 -0500
From:	Jeff Garzik <jeff@...zik.org>
To:	Alan Cox <alan@...ux.intel.com>
CC:	jeff@...zik.org.com, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org
Subject: Re: [PATCH 2/5] Subject: [PATCH] pata_efar: add locking for parallel
 scanning

On 02/17/2010 08:16 AM, Alan Cox wrote:
> From: Bartlomiej Zolnierkiewicz<bzolnier@...il.com>
>
> Add clearing of UDMA enable bit also for PIO modes and then add
> an extra locking for parallel scanning.
>
> This is similar change as commit 60c3be3 for ata_piix host driver
> and while pata_efar doesn't enable parallel scan yet the race could
> probably also be triggered by requesting re-scanning of both ports
> at the same time using SCSI sysfs interface.
>
> [Ported to current kernel without other patch dependancies by
>   Alan Cox]
>
> Original is
> Signed-off-by: Bartlomiej Zolnierkiewicz<bzolnier@...il.com>
>
> This one is
> Signed-off-by: Alan Cox<alan@...ux.intel.com>
> ---
>
>   drivers/ata/pata_efar.c |   15 +++++++++++++++
>   1 files changed, 15 insertions(+), 0 deletions(-)

applied 2-5


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