Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753152Ab0DMPZZ (ORCPT ); Tue, 13 Apr 2010 11:25:25 -0400 Received: from mail-ww0-f46.google.com ([74.125.82.46]:44602 "EHLO mail-ww0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752731Ab0DMPZX (ORCPT ); Tue, 13 Apr 2010 11:25:23 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer; b=tKiOKb6i9GLo9ZTq27RjpO7aC3dYqmm42fdVwsy8x+OO0siAosUwE6pJ0ZNdJ86dYZ XCQ3HZXlzxghQcvz+Z/eToLU9Y/HyywutF/SFPqD+tKC/Yo9dSTtTswZYhf/MiiWNr9q lWuLC8/sgP823XJwp+El1S3eHxlnCcPbVanXk= From: Minchan Kim To: Andrew Morton Cc: Mel Gorman , KAMEZAWA Hiroyuki , Bob Liu , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Minchan Kim Subject: [PATCH 1/6] Remove node's validity check in alloc_pages Date: Wed, 14 Apr 2010 00:24:58 +0900 Message-Id: <9918f566ab0259356cded31fd1dd80da6cae0c2b.1271171877.git.minchan.kim@gmail.com> X-Mailer: git-send-email 1.7.0.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1260 Lines: 34 alloc_pages calls alloc_pages_node with numa_node_id(). alloc_pages_node can't see nid < 0. So we can use alloc_pages_exact_node instead of alloc_pages_node. It could avoid comparison and branch as 6484eb3e2a81807722 tried. Cc: Mel Gorman Cc: KAMEZAWA Hiroyuki Signed-off-by: Minchan Kim --- include/linux/gfp.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 4c6d413..b65f003 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -308,7 +308,7 @@ extern struct page *alloc_page_vma(gfp_t gfp_mask, struct vm_area_struct *vma, unsigned long addr); #else #define alloc_pages(gfp_mask, order) \ - alloc_pages_node(numa_node_id(), gfp_mask, order) + alloc_pages_exact_node(numa_node_id(), gfp_mask, order) #define alloc_page_vma(gfp_mask, vma, addr) alloc_pages(gfp_mask, 0) #endif #define alloc_page(gfp_mask) alloc_pages(gfp_mask, 0) -- 1.7.0.5 -- 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/