Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759250Ab3DLBQg (ORCPT ); Thu, 11 Apr 2013 21:16:36 -0400 Received: from e39.co.us.ibm.com ([32.97.110.160]:49770 "EHLO e39.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754318Ab3DLBOo (ORCPT ); Thu, 11 Apr 2013 21:14:44 -0400 From: Cody P Schafer To: Andrew Morton Cc: Mel Gorman , Linux MM , LKML , Cody P Schafer , Simon Jeons Subject: [RFC PATCH v2 19/25] dnuma: memlayout: add memory_add_physaddr_to_nid() for memory_hotplug Date: Thu, 11 Apr 2013 18:13:51 -0700 Message-Id: <1365729237-29711-20-git-send-email-cody@linux.vnet.ibm.com> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1365729237-29711-1-git-send-email-cody@linux.vnet.ibm.com> References: <1365729237-29711-1-git-send-email-cody@linux.vnet.ibm.com> X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13041201-3620-0000-0000-000002001480 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 957 Lines: 37 Signed-off-by: Cody P Schafer --- mm/memlayout.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/mm/memlayout.c b/mm/memlayout.c index 45e7df6..4dc6706 100644 --- a/mm/memlayout.c +++ b/mm/memlayout.c @@ -247,3 +247,19 @@ void memlayout_global_init(void) memlayout_commit(ml); } + +#ifdef CONFIG_MEMORY_HOTPLUG +/* + * Provides a default memory_add_physaddr_to_nid() for memory hotplug, unless + * overridden by the arch. + */ +__weak +int memory_add_physaddr_to_nid(u64 start) +{ + int nid = memlayout_pfn_to_nid(PFN_DOWN(start)); + if (nid == NUMA_NO_NODE) + return 0; + return nid; +} +EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); +#endif -- 1.8.2.1 -- 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/