Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932834Ab3ECABs (ORCPT ); Thu, 2 May 2013 20:01:48 -0400 Received: from e39.co.us.ibm.com ([32.97.110.160]:41860 "EHLO e39.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762057Ab3ECABT (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 05/31] mm/memory_hotplug: use {pgdat,zone}_is_empty() when resizing zones & pgdats Date: Thu, 2 May 2013 17:00:37 -0700 Message-Id: <1367539263-19999-6-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: 13050300-3620-0000-0000-0000024F538B Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1465 Lines: 38 Use the *_is_empty() helpers to be more clear about what we're actually checking for. Signed-off-by: Cody P Schafer --- mm/memory_hotplug.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index f4cb01a..a65235f 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -242,7 +242,7 @@ static void grow_zone_span(struct zone *zone, unsigned long start_pfn, zone_span_writelock(zone); old_zone_end_pfn = zone->zone_start_pfn + zone->spanned_pages; - if (!zone->spanned_pages || start_pfn < zone->zone_start_pfn) + if (zone_is_empty(zone) || start_pfn < zone->zone_start_pfn) zone->zone_start_pfn = start_pfn; zone->spanned_pages = max(old_zone_end_pfn, end_pfn) - @@ -383,7 +383,7 @@ static void grow_pgdat_span(struct pglist_data *pgdat, unsigned long start_pfn, unsigned long old_pgdat_end_pfn = pgdat->node_start_pfn + pgdat->node_spanned_pages; - if (!pgdat->node_spanned_pages || start_pfn < pgdat->node_start_pfn) + if (pgdat_is_empty(pgdat) || start_pfn < pgdat->node_start_pfn) pgdat->node_start_pfn = start_pfn; pgdat->node_spanned_pages = max(old_pgdat_end_pfn, end_pfn) - -- 1.8.2.2 -- 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/