From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932690Ab3ECABq (ORCPT ); Thu, 2 May 2013 20:01:46 -0400 Received: from e9.ny.us.ibm.com ([32.97.182.139]:54756 "EHLO e9.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762056Ab3ECABT (ORCPT ); Thu, 2 May 2013 20:01:19 -0400 From: Cody P Schafer To: Linux MM Cc: LKML , Cody P Schafer , Simon Jeons Subject: [RFC PATCH v3 06/31] mm: add nid_zone() helper Date: Thu, 2 May 2013 17:00:38 -0700 Message-Id: <1367539263-19999-7-git-send-email-cody@linux.vnet.ibm.com> X-Mailer: git-send-email 1.8.2.2 In-Reply-To: <1367539263-19999-1-git-send-email-cody@linux.vnet.ibm.com> References: <1367539263-19999-1-git-send-email-cody@linux.vnet.ibm.com> X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13050300-7182-0000-0000-00000684B8A6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add nid_zone(), which returns the zone corresponding to a given nid & zonenum. Signed-off-by: Cody P Schafer --- include/linux/mm.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 1a7f19e..2004713 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -711,9 +711,14 @@ static inline void page_nid_reset_last(struct page *page) } #endif +static inline struct zone *nid_zone(int nid, enum zone_type zonenum) +{ + return &NODE_DATA(nid)->node_zones[zonenum]; +} + static inline struct zone *page_zone(const struct page *page) { - return &NODE_DATA(page_to_nid(page))->node_zones[page_zonenum(page)]; + return nid_zone(page_to_nid(page), page_zonenum(page)); } #ifdef SECTION_IN_PAGE_FLAGS -- 1.8.2.2