linux-kernel - Re: [PATCH v2] MMC: fix all hangs related to mmc/sd card insert/removal during suspend/resume.

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Date:	Sun, 13 Jun 2010 14:27:29 +0300
From:	Maxim Levitsky <maximlevitsky@...il.com>
To:	linux-mmc <linux-mmc@...r.kernel.org>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	linux-pm <linux-pm@...ts.linux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Philip Langdale <philipl@...rt.org>
Subject: Re: [PATCH v2] MMC: fix all hangs related to mmc/sd card
 insert/removal during suspend/resume.

On Fri, 2010-06-11 at 22:19 +0300, Maxim Levitsky wrote: 
> If you don't use CONFIG_MMC_UNSAFE_RESUME, card will now be removed
> in pm notified while userspace is still running.
> Thus it will be possible to sync it propely.
> 
> Card detect workqueue is now freezeable, therefore a card insert/removal event will
> wait till userspace is unfrozen.
> 
> Tested with and without CONFIG_MMC_UNSAFE_RESUME with suspend and hibernate.
And I say it is now well tested.
All attempts to hang the system failed.

Best regards,
Maxim Levitsky

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