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Date: Mon, 26 Feb 2007 15:00:43 +0300 From: Oleg Nesterov <oleg@...sign.ru> To: "Rafael J. Wysocki" <rjw@...k.pl> Cc: LKML <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...l.org>, Pavel Machek <pavel@....cz>, Srivatsa Vaddagiri <vatsa@...ibm.com>, Aneesh Kumar <aneesh.kumar@...il.com>, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, Gautham R Shenoy <ego@...ibm.com> Subject: Re: [RFC][PATCH 1/3] Freezer: Fix vfork problem On 02/26, Rafael J. Wysocki wrote: > > The changelog explains it pretty well, I hope, but I have one more comment to > start with. Namely, in this version of the patch I've added > > + if (is_user_space(current)) > + try_to_freeze(); > > to freezer_count() instead of just try_to_freeze(). This way kernel threads > can avoid being frozen where they don't want to. In that case we should also modify ____call_usermodehelper(), otherwise we have the same "deadlock" if it is frozen. But this is not so easy to do as I thought before. Oleg. - 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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