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From: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
To: Linux Fbdev development list
	<linux-fbdev-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Cc: Jan Kasprzak <kas-0hYGf3jDe+XrBKCeMvbIDA@public.gmane.org>,
	Paul Mackerras <paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>,
	jt-yAE0UhLNZJawPNPzzlOzwdBPR1lH4CV8@public.gmane.org,
	javier-UOFnMJzu7Pp1eVVWpSVkNqxOck334EZe@public.gmane.org,
	acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
	linux1394-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
	roland-nF87da4h5whBDgjK7y7TUQ@public.gmane.org,
	Linux Kernel list
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [Linux-fbdev-devel] Re: inappropriate use of in_atomic()
Date: Fri, 11 Mar 2005 23:26:13 +1100	[thread overview]
Message-ID: <1110543974.5809.98.camel@gaston> (raw)
In-Reply-To: <20050311014601.166ae43d.akpm-3NddpPZAyC0@public.gmane.org>

On Fri, 2005-03-11 at 01:46 -0800, Andrew Morton wrote:
> Jan Kasprzak <kas-0hYGf3jDe+XrBKCeMvbIDA@public.gmane.org> wrote:
> >
> > This may be the cause of 
> > 
> >  http://bugme.osdl.org/show_bug.cgi?id=4150
> 
> Looks that way, yes.

Note that it would be interesting to fix that (I mean the reliability of
is_atomic() or an alternative). I agree it's quite bad to rely on that
in practice, but there are a few corner cases where it's useful (like
oops handling in fbdev's etc...)

Ben.




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  parent reply	other threads:[~2005-03-11 12:26 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-11  4:40 inappropriate use of in_atomic() Andrew Morton
2005-03-11  6:25 ` Stephen Rothwell
     [not found] ` <20050310204006.48286d17.akpm-3NddpPZAyC0@public.gmane.org>
2005-03-11  9:11   ` Jan Kasprzak
2005-03-11  9:46     ` [ACPI] " Andrew Morton
     [not found]       ` <20050311014601.166ae43d.akpm-3NddpPZAyC0@public.gmane.org>
2005-03-11 12:26         ` Benjamin Herrenschmidt [this message]
2005-03-12  0:13           ` [Linux-fbdev-devel] " Andrew Morton
2005-03-12  0:22             ` Benjamin Herrenschmidt

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