[RFC PATCH 14/23 V2] slub, hotplug: ignore unrelated node's hot-adding and hot-removing
From: Lai Jiangshan <hidden>
Date: 2012-08-02 02:53:02
Also in:
cgroups
Subsystem:
memory management, slab allocator, the rest · Maintainers:
Andrew Morton, Vlastimil Babka, Harry Yoo, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2012-08-06 · Re: [RFC PATCH 14/23 V2] slub, hotplug: ignore unrelated node's hot-adding and hot-removing · Lai Jiangshan <hidden>
- 2012-08-02 · [RFC PATCH 14/23 V2] slub, hotplug: ignore unrelated node's hot-adding and hot-removing · Lai Jiangshan <hidden>
SLUB only fucus on the nodes which has normal memory, so ignore the other node's hot-adding and hot-removing. Signed-off-by: Lai Jiangshan <redacted> --- mm/slub.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/mm/slub.c b/mm/slub.c
index 8c691fa..4c5bdc0 100644
--- a/mm/slub.c
+++ b/mm/slub.c@@ -3577,6 +3577,9 @@ static void slab_mem_offline_callback(void *arg) if (offline_node < 0) return; + if (page_zonenum(pfn_to_page(marg->start_pfn)) > ZONE_NORMAL) + return; + down_read(&slub_lock); list_for_each_entry(s, &slab_caches, list) { n = get_node(s, offline_node);
@@ -3611,6 +3614,9 @@ static int slab_mem_going_online_callback(void *arg) if (nid < 0) return 0; + if (page_zonenum(pfn_to_page(marg->start_pfn)) > ZONE_NORMAL) + return 0; + /* * We are bringing a node online. No memory is available yet. We must * allocate a kmem_cache_node structure in order to bring the node
--
1.7.1