Messages in this thread Patch in this message | | | From | Cody P Schafer <> | Subject | [RFC PATCH v2 05/25] mm/memory_hotplug: use {pgdat,zone}_is_empty() when resizing zones & pgdats | Date | Thu, 11 Apr 2013 18:13:37 -0700 |
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Use the *_is_empty() helpers to be more clear about what we're actually checking for.
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com> --- 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 df04c36..deea8c2 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) - -- 1.8.2.1
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