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Diffstat (limited to 'mm')
-rw-r--r--mm/memory_hotplug.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 32abde2e2472..f42a8ef93ec4 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1436,7 +1436,15 @@ static struct page *new_node_page(struct page *page, unsigned long private,
gfp_t gfp_mask = GFP_USER | __GFP_MOVABLE;
int nid = page_to_nid(page);
nodemask_t nmask = node_states[N_MEMORY];
- struct page *new_page = NULL;
+
+ /*
+ * try to allocate from a different node but reuse this node if there
+ * are no other online nodes to be used (e.g. we are offlining a part
+ * of the only existing node)
+ */
+ node_clear(nid, nmask);
+ if (nodes_empty(nmask))
+ node_set(nid, nmask);
/*
* TODO: allocate a destination hugepage from a nearest neighbor node,
@@ -1447,18 +1455,11 @@ static struct page *new_node_page(struct page *page, unsigned long private,
return alloc_huge_page_node(page_hstate(compound_head(page)),
next_node_in(nid, nmask));
- node_clear(nid, nmask);
-
if (PageHighMem(page)
|| (zone_idx(page_zone(page)) == ZONE_MOVABLE))
gfp_mask |= __GFP_HIGHMEM;
- if (!nodes_empty(nmask))
- new_page = __alloc_pages_nodemask(gfp_mask, 0, nid, &nmask);
- if (!new_page)
- new_page = __alloc_pages(gfp_mask, 0, nid);
-
- return new_page;
+ return __alloc_pages_nodemask(gfp_mask, 0, nid, &nmask);
}
#define NR_OFFLINE_AT_ONCE_PAGES (256)