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Date: Wed, 8 Feb 2012 17:46:15 -0800 (PST) From: David Rientjes <rientjes@...gle.com> To: Anton Vorontsov <anton.vorontsov@...aro.org> cc: Oleg Nesterov <oleg@...hat.com>, Greg KH <gregkh@...uxfoundation.org>, KOSAKI Motohiro <kosaki.motohiro@...il.com>, "Eric W. Biederman" <ebiederm@...ssion.com>, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, Paul Mundt <lethal@...ux-sh.org>, Russell King <linux@....linux.org.uk>, Mike Frysinger <vapier@...too.org>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Richard Weinberger <richard@....at>, linux-kernel@...r.kernel.org Subject: Re: [PATCH 2/8] sysrq: Properly check for kernel threads On Tue, 7 Feb 2012, Anton Vorontsov wrote: > There's a real possibility of killing kernel threads that might > have issued use_mm(), so kthread's mm might become non-NULL. > > This patch fixes the issue by checking for PF_KTHREAD (just as > get_task_mm()). > > Suggested-by: Oleg Nesterov <oleg@...hat.com> > Signed-off-by: Anton Vorontsov <anton.vorontsov@...aro.org> Acked-by: David Rientjes <rientjes@...gle.com> Definitely needed. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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