Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752477AbZIZL6y (ORCPT ); Sat, 26 Sep 2009 07:58:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752198AbZIZL6y (ORCPT ); Sat, 26 Sep 2009 07:58:54 -0400 Received: from mk-filter-4-a-1.mail.uk.tiscali.com ([212.74.100.55]:35935 "EHLO mk-filter-4-a-1.mail.uk.tiscali.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752191AbZIZL6x (ORCPT ); Sat, 26 Sep 2009 07:58:53 -0400 X-Trace: 262877299/mk-filter-4.mail.uk.tiscali.com/B2C/$b2c-THROTTLED-DYNAMIC/b2c-CUSTOMER-DYNAMIC-IP/79.69.103.91/None/hugh.dickins@tiscali.co.uk X-SBRS: None X-RemoteIP: 79.69.103.91 X-IP-MAIL-FROM: hugh.dickins@tiscali.co.uk X-SMTP-AUTH: X-MUA: X-IP-BHB: Once X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Au4EAKeevUpPRWdb/2dsb2JhbACBUNQZhB4F X-IronPort-AV: E=Sophos;i="4.44,456,1249254000"; d="scan'208";a="262877299" Date: Sat, 26 Sep 2009 12:58:53 +0100 (BST) From: Hugh Dickins X-X-Sender: hugh@sister.anvils To: Wu Fengguang cc: Andrew Morton , Nick Piggin , Andi Kleen , "linux-mm@kvack.org" , LKML Subject: Re: [RFC][PATCH] HWPOISON: remove the unsafe __set_page_locked() In-Reply-To: <20090926114806.GA12419@localhost> Message-ID: References: <20090926031537.GA10176@localhost> <20090926114806.GA12419@localhost> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 701 Lines: 16 On Sat, 26 Sep 2009, Wu Fengguang wrote: > > However we may well end up to accept the fact that "we just cannot do > hwpoison 100% correct", and settle with a simple and 99% correct code. I thought we already accepted that: you cannot do hwpoison 100% correct (or not without a radical rewrite of the OS); you're just looking to get it right almost all the time on those systems which have almost all their pages in pagecache or userspace or free. Hugh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/