The patch titled
Subject: memory-hotplug-clear-pgdat-which-is-allocated-by-bootmem-in-try_offline_node-v2
has been added to the -mm tree. Its filename is
memory-hotplug-clear-pgdat-which-is-allocated-by-bootmem-in-try_offline_node-v2.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/memory-hotplug-clear-pgdat-which-is-allocated-by-bootmem-in-try_offline_node-v2.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/memory-hotplug-clear-pgdat-which-is-allocated-by-bootmem-in-try_offline_node-v2.patch
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------------------------------------------------------
From: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx>
Subject: memory-hotplug-clear-pgdat-which-is-allocated-by-bootmem-in-try_offline_node-v2
v2: remove check of pgdat_page
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx>
Cc: Zhang Zhen <zhenzhang.zhang@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Cc: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Cc: Toshi Kani <toshi.kani@xxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory_hotplug.c | 6 ------
1 file changed, 6 deletions(-)
diff -puN mm/memory_hotplug.c~memory-hotplug-clear-pgdat-which-is-allocated-by-bootmem-in-try_offline_node-v2 mm/memory_hotplug.c
--- a/mm/memory_hotplug.c~memory-hotplug-clear-pgdat-which-is-allocated-by-bootmem-in-try_offline_node-v2
+++ a/mm/memory_hotplug.c
@@ -1912,7 +1912,6 @@ void try_offline_node(int nid)
unsigned long start_pfn = pgdat->node_start_pfn;
unsigned long end_pfn = start_pfn + pgdat->node_spanned_pages;
unsigned long pfn;
- struct page *pgdat_page = virt_to_page(pgdat);
int i;
for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {
@@ -1941,10 +1940,6 @@ void try_offline_node(int nid)
node_set_offline(nid);
unregister_one_node(nid);
- if (!PageSlab(pgdat_page) && !PageCompound(pgdat_page))
- /* node data is allocated from boot memory */
- goto out;
-
/* free waittable in each zone */
for (i = 0; i < MAX_NR_ZONES; i++) {
struct zone *zone = pgdat->node_zones + i;
@@ -1957,7 +1952,6 @@ void try_offline_node(int nid)
vfree(zone->wait_table);
}
-out:
/*
* Since there is no way to guarentee the address of pgdat/zone is not
* on stack of any kernel threads or used by other kernel objects
_
Patches currently in -mm which might be from isimatu.yasuaki@xxxxxxxxxxxxxx are
memory-hotplug-clear-pgdat-which-is-allocated-by-bootmem-in-try_offline_node.patch
memory-hotplug-clear-pgdat-which-is-allocated-by-bootmem-in-try_offline_node-v2.patch
mm-introduce-single-zone-pcplists-drain.patch
mm-page_isolation-drain-single-zone-pcplists.patch
mm-cma-drain-single-zone-pcplists.patch
mm-memory_hotplug-failure-drain-single-zone-pcplists.patch
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