From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with ESMTP id B55986B01BC for ; Thu, 14 May 2009 09:56:56 -0400 (EDT) Date: Thu, 14 May 2009 09:57:47 -0400 From: Christoph Hellwig Subject: Re: [PATCH] x86: Extend test_and_set_bit() test_and_clean_bit() to 64 bits in X86_64 Message-ID: <20090514135747.GA7926@infradead.org> References: <1242202647-32446-1-git-send-email-sheng@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1242202647-32446-1-git-send-email-sheng@linux.intel.com> Sender: owner-linux-mm@kvack.org To: Sheng Yang Cc: linux-kernel@vger.kernel.org, linux-mm , Ingo Molnar , "H. Peter Anvin" List-ID: On Wed, May 13, 2009 at 04:17:27PM +0800, Sheng Yang wrote: > This fix 44/45 bit width memory can't boot up issue. The reason is > free_bootmem_node()->mark_bootmem_node()->__free() use test_and_clean_bit() to > clean node_bootmem_map, but for 44bits width address, the idx set bit 31 (43 - > 12), which consider as a nagetive value for bts. Should we really have different prototypes for these helpers on different architectures? -- 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