From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id D7F8D6B00B6 for ; Mon, 28 Sep 2009 13:17:21 -0400 (EDT) Date: Mon, 28 Sep 2009 03:19:43 +0200 From: Andi Kleen Subject: Re: [RFC][PATCH] HWPOISON: remove the unsafe __set_page_locked() Message-ID: <20090928011943.GB1656@one.firstfloor.org> References: <20090926031537.GA10176@localhost> <20090926190645.GB14368@wotan.suse.de> <20090926213204.GX30185@one.firstfloor.org> <20090927192251.GB6327@wotan.suse.de> <20090927230118.GH6327@wotan.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090927230118.GH6327@wotan.suse.de> Sender: owner-linux-mm@kvack.org To: Nick Piggin Cc: Hugh Dickins , Andi Kleen , Wu Fengguang , Andrew Morton , linux-mm@kvack.org, LKML List-ID: > There is no real rush AFAIKS to fix this one single pagecache site > while we have problems with slab allocators and all other unaudited > places that nonatomically modify page flags with an elevated hwpoison ignores slab pages. > page reference ... just mark HWPOISON as broken for the moment, or > cut it down to do something much simpler I guess? Erm no. These cases are *EXTREMLY* unlikely to hit. I'll look into exploiting the ordering of the mapping assignment. -Andi -- ak@linux.intel.com -- Speaking for myself only. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org