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Date: Thu, 3 Apr 2008 11:30:00 -0700 From: "Paul Menage" <menage@...gle.com> To: "Dave Hansen" <dave@...ux.vnet.ibm.com> Cc: "Balbir Singh" <balbir@...ux.vnet.ibm.com>, "Pavel Emelianov" <xemul@...nvz.org>, "Hugh Dickins" <hugh@...itas.com>, "Sudhir Kumar" <skumar@...ux.vnet.ibm.com>, "YAMAMOTO Takashi" <yamamoto@...inux.co.jp>, lizf@...fujitsu.com, linux-kernel@...r.kernel.org, taka@...inux.co.jp, linux-mm@...ck.org, "David Rientjes" <rientjes@...gle.com>, "Andrew Morton" <akpm@...ux-foundation.org>, "KAMEZAWA Hiroyuki" <kamezawa.hiroyu@...fujitsu.com> Subject: Re: [-mm] Add an owner to the mm_struct (v7) On Thu, Apr 3, 2008 at 11:25 AM, Dave Hansen <dave@...ux.vnet.ibm.com> wrote: > > + /* > > + * Search through everything else. We should not get > > + * here often > > + */ > > + do_each_thread(g, c) { > > + if (c->mm == mm) > > + goto assign_new_owner; > > + } while_each_thread(g, c); > > What is the case in which we get here? Threading that's two deep where > none of the immeidate siblings or children is still alive? Probably the most likely case of this would be a LinuxThreads process where the manager thread exits, and then the main thread, while other threads still exist. Paul -- 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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