Subject: [merged] memory_hotplug-use-pgdat_resize_lock-in-online_pages.patch removed from -mm tree To: cody@xxxxxxxxxxxxxxxxxx,rientjes@xxxxxxxxxx,mm-commits@xxxxxxxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Mon, 08 Jul 2013 12:25:10 -0700 The patch titled Subject: memory_hotplug: use pgdat_resize_lock() in online_pages() has been removed from the -mm tree. Its filename was memory_hotplug-use-pgdat_resize_lock-in-online_pages.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Cody P Schafer <cody@xxxxxxxxxxxxxxxxxx> Subject: memory_hotplug: use pgdat_resize_lock() in online_pages() mmzone.h documents node_size_lock (which pgdat_resize_lock() locks) as follows: * Must be held any time you expect node_start_pfn, node_present_pages * or node_spanned_pages stay constant. [...] So actually hold it when we update node_present_pages in online_pages(). Signed-off-by: Cody P Schafer <cody@xxxxxxxxxxxxxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/memory_hotplug.c | 5 +++++ 1 file changed, 5 insertions(+) diff -puN mm/memory_hotplug.c~memory_hotplug-use-pgdat_resize_lock-in-online_pages mm/memory_hotplug.c --- a/mm/memory_hotplug.c~memory_hotplug-use-pgdat_resize_lock-in-online_pages +++ a/mm/memory_hotplug.c @@ -918,6 +918,7 @@ static void node_states_set_node(int nod int __ref online_pages(unsigned long pfn, unsigned long nr_pages, int online_type) { + unsigned long flags; unsigned long onlined_pages = 0; struct zone *zone; int need_zonelists_rebuild = 0; @@ -996,7 +997,11 @@ int __ref online_pages(unsigned long pfn zone->managed_pages += onlined_pages; zone->present_pages += onlined_pages; + + pgdat_resize_lock(zone->zone_pgdat, &flags); zone->zone_pgdat->node_present_pages += onlined_pages; + pgdat_resize_unlock(zone->zone_pgdat, &flags); + if (onlined_pages) { node_states_set_node(zone_to_nid(zone), &arg); if (need_zonelists_rebuild) _ Patches currently in -mm which might be from cody@xxxxxxxxxxxxxxxxxx are origin.patch zbud-add-to-mm.patch zswap-add-to-mm.patch zswap-add-documentation.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html