2 files changed, 28 insertions, 0 deletions

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index ee700c6eb442..839f0b3c23aa 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -51,6 +51,10 @@ static inline void mapping_set_gfp_mask(struct address_space *m, gfp_t mask)
 #define page_cache_release(page)        put_page(page)
 void release_pages(struct page **pages, int nr, int cold);
 
+#ifdef CONFIG_NUMA
+extern struct page *page_cache_alloc(struct address_space *x);
+extern struct page *page_cache_alloc_cold(struct address_space *x);
+#else
 static inline struct page *page_cache_alloc(struct address_space *x)
 {
         return alloc_pages(mapping_gfp_mask(x), 0);
@@ -60,6 +64,7 @@ static inline struct page *page_cache_alloc_cold(struct address_space *x)
 {
         return alloc_pages(mapping_gfp_mask(x)|__GFP_COLD, 0);
 }
+#endif
 
 typedef int filler_t(void *, struct page *);
 
diff --git a/mm/filemap.c b/mm/filemap.c
index e8f58f7dd7a5..d4ff48ec269e 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -29,6 +29,7 @@
 #include <linux/blkdev.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
+#include <linux/cpuset.h>
 #include "filemap.h"
 #include "internal.h"
 
@@ -427,6 +428,28 @@ int add_to_page_cache_lru(struct page *page, struct address_space *mapping,
         return ret;
 }
 
+#ifdef CONFIG_NUMA
+struct page *page_cache_alloc(struct address_space *x)
+{
+        if (cpuset_do_page_mem_spread()) {
+                int n = cpuset_mem_spread_node();
+                return alloc_pages_node(n, mapping_gfp_mask(x), 0);
+        }
+        return alloc_pages(mapping_gfp_mask(x), 0);
+}
+EXPORT_SYMBOL(page_cache_alloc);
+
+struct page *page_cache_alloc_cold(struct address_space *x)
+{
+        if (cpuset_do_page_mem_spread()) {
+                int n = cpuset_mem_spread_node();
+                return alloc_pages_node(n, mapping_gfp_mask(x)|__GFP_COLD, 0);
+        }
+        return alloc_pages(mapping_gfp_mask(x)|__GFP_COLD, 0);
+}
+EXPORT_SYMBOL(page_cache_alloc_cold);
+#endif
+
 /*
  * In order to wait for pages to become available there must be
  * waitqueues associated with pages. By using a hash table of