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From: Holger Macht <hmacht@suse.de>
To: Tejun Heo <htejun@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>,
	IDE/ATA development list <linux-ide@vger.kernel.org>
Subject: Re: [PATCH libata-dev#upstream-fixes] libata-acpi: improve dock event handling
Date: Thu, 13 Mar 2008 19:19:46 +0100	[thread overview]
Message-ID: <20080313181946.GD26183@homac.suse.de> (raw)
In-Reply-To: <47D7691B.3080107@gmail.com>

On Wed 12. Mar - 14:24:43, Tejun Heo wrote:
> Improve ACPI hotplug handling such that dock event is handled properly.
> 
> * Register handlers for dock events.
> 
> * Directly detach device on EJECT_REQUEST instead of signaling hotplug
>   event.  This prevents libata from accessing severed controller
>   and/or device.
> 
> * While at it, use named constants for ACPI events and move uevent
>   signaling inside host lock.
> 
> Original patch and testing by Holger Macht.

Grrrr, unfortunately, the patch still seems to be not perfect:
  http://marc.info/?l=linux-acpi&m=120543202908662&w=2

Are you sure access to the device (/dev/srX) is locked before
ata_acpi_dev_notify() returns?

Regards,
	Holger

  reply	other threads:[~2008-03-13 18:18 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-12  5:24 [PATCH libata-dev#upstream-fixes] libata-acpi: improve dock event handling Tejun Heo
2008-03-13 18:19 ` Holger Macht [this message]
2008-03-19  6:44   ` Tejun Heo
2008-03-17 12:27 ` Jeff Garzik

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