mempolicy: write lock mmap_sem while changing task mempolicy

[cascardo/linux.git] / mm / slub.c

diff --git a/mm/slub.c b/mm/slub.c
index 7f8aaa2..38914bc 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -207,11 +207,6 @@ static inline void ClearSlabDebug(struct page *page)
 #define __KMALLOC_CACHE                0x20000000 /* objects freed using kfree */
 #define __PAGE_ALLOC_FALLBACK  0x10000000 /* Allow fallback to page alloc */
 
-/* Not all arches define cache_line_size */
-#ifndef cache_line_size
-#define cache_line_size()      L1_CACHE_BYTES
-#endif
-
 static int kmem_size = sizeof(struct kmem_cache);
 
 #ifdef CONFIG_SMP
@@ -521,7 +516,7 @@ static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p)
 static void object_err(struct kmem_cache *s, struct page *page,
                        u8 *object, char *reason)
 {
-       slab_bug(s, reason);
+       slab_bug(s, "%s", reason);
        print_trailer(s, page, object);
 }
 
@@ -533,7 +528,7 @@ static void slab_err(struct kmem_cache *s, struct page *page, char *fmt, ...)
        va_start(args, fmt);
        vsnprintf(buf, sizeof(buf), fmt, args);
        va_end(args);
-       slab_bug(s, fmt);
+       slab_bug(s, "%s", buf);
        print_page_info(page);
        dump_stack();
 }
@@ -1284,7 +1279,9 @@ static struct page *get_any_partial(struct kmem_cache *s, gfp_t flags)
 {
 #ifdef CONFIG_NUMA
        struct zonelist *zonelist;
-       struct zone **z;
+       struct zoneref *z;
+       struct zone *zone;
+       enum zone_type high_zoneidx = gfp_zone(flags);
        struct page *page;
 
        /*
@@ -1309,14 +1306,13 @@ static struct page *get_any_partial(struct kmem_cache *s, gfp_t flags)
                        get_cycles() % 1024 > s->remote_node_defrag_ratio)
                return NULL;
 
-       zonelist = &NODE_DATA(
-               slab_node(current->mempolicy))->node_zonelists[gfp_zone(flags)];
-       for (z = zonelist->zones; *z; z++) {
+       zonelist = node_zonelist(slab_node(current->mempolicy), flags);
+       for_each_zone_zonelist(zone, z, zonelist, high_zoneidx) {
                struct kmem_cache_node *n;
 
-               n = get_node(s, zone_to_nid(*z));
+               n = get_node(s, zone_to_nid(zone));
 
-               if (n && cpuset_zone_allowed_hardwall(*z, flags) &&
+               if (n && cpuset_zone_allowed_hardwall(zone, flags) &&
                                n->nr_partial > MIN_PARTIAL) {
                        page = get_partial_node(n);
                        if (page)