From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx123.postini.com [74.125.245.123]) by kanga.kvack.org (Postfix) with SMTP id 5865F6B004D for ; Mon, 23 Jul 2012 20:55:14 -0400 (EDT) Received: from /spool/local by e34.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 23 Jul 2012 18:55:11 -0600 Received: from d03relay02.boulder.ibm.com (d03relay02.boulder.ibm.com [9.17.195.227]) by d03dlp02.boulder.ibm.com (Postfix) with ESMTP id 0E0213E40039 for ; Tue, 24 Jul 2012 00:54:48 +0000 (WET) Received: from d03av03.boulder.ibm.com (d03av03.boulder.ibm.com [9.17.195.169]) by d03relay02.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id q6O0sm7X162302 for ; Mon, 23 Jul 2012 18:54:48 -0600 Received: from d03av03.boulder.ibm.com (loopback [127.0.0.1]) by d03av03.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id q6O0smCl026394 for ; Mon, 23 Jul 2012 18:54:48 -0600 Date: Tue, 24 Jul 2012 08:54:45 +0800 From: Gavin Shan Subject: Re: [PATCH RESEND v4 1/3] mm/sparse: optimize sparse_index_alloc Message-ID: <20120724005445.GA4393@shangw.(null)> Reply-To: Gavin Shan References: <1343010702-28720-1-git-send-email-shangw@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Cong Wang Cc: linux-mm@kvack.org On Mon, Jul 23, 2012 at 08:18:04AM +0000, Cong Wang wrote: >On Mon, 23 Jul 2012 at 02:31 GMT, Gavin Shan wrote: >> With CONFIG_SPARSEMEM_EXTREME, the two level of memory section >> descriptors are allocated from slab or bootmem. When allocating >> from slab, let slab/bootmem allocator to clear the memory chunk. >> We needn't clear that explicitly. >> >> Signed-off-by: Gavin Shan >> Reviewed-by: Michal Hocko >> Acked-by: David Rientjes > >Reviewed-by: Cong Wang > Thanks for your time, Cong :-) Thanks, Gavin > >-- >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 > -- 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