dma kmalloc handling fixes

1. We need kmalloc_percpu for all of the now extended kmalloc caches array not just for each shift value. 2. init_kmem_cache_nodes() must assume node 0 locality for statically allocated dma kmem_cache structures even after boot is complete. Reported-and-tested-by: Alex Chiang <[email protected]> Signed-off-by: Christoph Lameter <[email protected]> Signed-off-by: Pekka Enberg <[email protected]>
aosmith · Jan 22, 2010 · 91efd77 · 91efd77
1 parent 7738dd9
commit 91efd77
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/mm/slub.c b/mm/slub.c
@@ -2062,7 +2062,7 @@ init_kmem_cache_node(struct kmem_cache_node *n, struct kmem_cache *s)
 #endif
 }
 
-static DEFINE_PER_CPU(struct kmem_cache_cpu, kmalloc_percpu[SLUB_PAGE_SHIFT]);
+static DEFINE_PER_CPU(struct kmem_cache_cpu, kmalloc_percpu[KMALLOC_CACHES]);
 
 static inline int alloc_kmem_cache_cpus(struct kmem_cache *s, gfp_t flags)
 {
@@ -2148,7 +2148,8 @@ static int init_kmem_cache_nodes(struct kmem_cache *s, gfp_t gfpflags)
 	int node;
 	int local_node;
 
-	if (slab_state >= UP)
+	if (slab_state >= UP && (s < kmalloc_caches ||
+			s > kmalloc_caches + KMALLOC_CACHES))
 		local_node = page_to_nid(virt_to_page(s));
 	else
 		local_node = 0;