linux-kernel - Re: [linux-pm] Freezer: Don't count threads waiting for frozen filesystems.

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Message-Id: <E1KvKql-0000dC-3M@pomaz-ex.szeredi.hu>
Date:	Thu, 30 Oct 2008 00:53:19 +0100
From:	Miklos Szeredi <miklos@...redi.hu>
To:	rjw@...k.pl
CC:	ncunningham@...a.org.au, stern@...land.harvard.edu,
	linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
	miklos@...redi.hu
Subject: Re: [linux-pm] Freezer: Don't count threads waiting for frozen filesystems.

On Wed, 29 Oct 2008, Rafael J. Wysocki wrote:
> In any case, the freezing of user space seems to be much simpler
> than modifying all drivers to add suspend synchronization.

As I mentioned, we don't _have_ to modify all drivers.  It could start
out by just modifying syscalls that result in calls to drivers.  That
would be a 10-liner patch.

Miklos
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