From 49735c286dfe634fe359e25948106a6f518c624b Mon Sep 17 00:00:00 2001 From: Cody P Schafer Date: Thu, 23 May 2013 10:37:20 +1000 Subject: [PATCH] mmzone: note that node_size_lock should be manipulated via pgdat_resize_lock() Signed-off-by: Cody P Schafer Cc: David Rientjes Signed-off-by: Andrew Morton --- include/linux/mmzone.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 9ec7cffcae21..e511f9429f1e 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -733,6 +733,9 @@ typedef struct pglist_data { * or node_spanned_pages stay constant. Holding this will also * guarantee that any pfn_valid() stays that way. * + * pgdat_resize_lock() and pgdat_resize_unlock() are provided to + * manipulate node_size_lock without checking for CONFIG_MEMORY_HOTPLUG. + * * Nests above zone->lock and zone->span_seqlock */ spinlock_t node_size_lock; -- 2.39.5