The patch titled
Subject: mm/memory_hotplug: remove duplicate call for set_page_links
has been added to the -mm tree. Its filename is
mm-memory_hotplug-do-not-associate-hotadded-memory-to-zones-until-online-fix-2.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-memory_hotplug-do-not-associate-hotadded-memory-to-zones-until-online-fix-2.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-memory_hotplug-do-not-associate-hotadded-memory-to-zones-until-online-fix-2.patch
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------------------------------------------------------
From: Wei Yang <richard.weiyang@xxxxxxxxx>
Subject: mm/memory_hotplug: remove duplicate call for set_page_links
In move_pfn_range_to_zone(), memmap_init_zone() will call set_page_links
for each page. This means we don't need to call it on each page
explicitly.
This patch just removes the loop.
Link: http://lkml.kernel.org/r/20170616092335.5177-2-richard.weiyang@xxxxxxxxx
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory_hotplug.c | 4 ----
1 file changed, 4 deletions(-)
diff -puN mm/memory_hotplug.c~mm-memory_hotplug-do-not-associate-hotadded-memory-to-zones-until-online-fix-2 mm/memory_hotplug.c
--- a/mm/memory_hotplug.c~mm-memory_hotplug-do-not-associate-hotadded-memory-to-zones-until-online-fix-2
+++ a/mm/memory_hotplug.c
@@ -1103,10 +1103,6 @@ void move_pfn_range_to_zone(struct zone
* are reserved so nobody should be touching them so we should be safe
*/
memmap_init_zone(nr_pages, nid, zone_idx(zone), start_pfn, MEMMAP_HOTPLUG);
- for (i = 0; i < nr_pages; i++) {
- unsigned long pfn = start_pfn + i;
- set_page_links(pfn_to_page(pfn), zone_idx(zone), nid, pfn);
- }
set_zone_contiguous(zone);
}
_
Patches currently in -mm which might be from richard.weiyang@xxxxxxxxx are
mm-slub-remove-a-redundant-assignment-in-___slab_alloc.patch
mm-slub-reset-cpu_slabs-pointer-in-deactivate_slab.patch
mm-slub-pack-red_left_pad-with-another-int-to-save-a-word.patch
mm-slub-wrap-cpu_slab-partial-in-config_slub_cpu_partial.patch
mm-slub-wrap-kmem_cache-cpu_partial-in-config-config_slub_cpu_partial.patch
mm-nobootmem-return-0-when-start_pfn-equals-end_pfn.patch
mm-memory_hotplug-do-not-associate-hotadded-memory-to-zones-until-online-fix.patch
mm-memory_hotplug-do-not-associate-hotadded-memory-to-zones-until-online-fix-2.patch
mm-page_alloc-return-0-in-case-this-node-has-no-page-within-the-zone.patch
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