The patch titled
Subject: mm, memory hotplug: small cleanup in online_pages()
has been removed from the -mm tree. Its filename was
mm-memory-hotplug-small-cleanup-in-online_pages.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Vlastimil Babka <vbabka@xxxxxxx>
Subject: mm, memory hotplug: small cleanup in online_pages()
We can reuse the nid we've determined instead of repeated pfn_to_nid() usages.
Also zone_to_nid() should be a bit cheaper in general than pfn_to_nid().
Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory_hotplug.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -puN mm/memory_hotplug.c~mm-memory-hotplug-small-cleanup-in-online_pages mm/memory_hotplug.c
--- a/mm/memory_hotplug.c~mm-memory-hotplug-small-cleanup-in-online_pages
+++ a/mm/memory_hotplug.c
@@ -1055,7 +1055,7 @@ int __ref online_pages(unsigned long pfn
arg.nr_pages = nr_pages;
node_states_check_changes_online(nr_pages, zone, &arg);
- nid = pfn_to_nid(pfn);
+ nid = zone_to_nid(zone);
ret = memory_notify(MEM_GOING_ONLINE, &arg);
ret = notifier_to_errno(ret);
@@ -1095,7 +1095,7 @@ int __ref online_pages(unsigned long pfn
pgdat_resize_unlock(zone->zone_pgdat, &flags);
if (onlined_pages) {
- node_states_set_node(zone_to_nid(zone), &arg);
+ node_states_set_node(nid, &arg);
if (need_zonelists_rebuild)
build_all_zonelists(NULL, NULL);
else
@@ -1107,7 +1107,7 @@ int __ref online_pages(unsigned long pfn
init_per_zone_wmark_min();
if (onlined_pages) {
- kswapd_run(zone_to_nid(zone));
+ kswapd_run(nid);
kcompactd_run(nid);
}
_
Patches currently in -mm which might be from vbabka@xxxxxxx are
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