1 files changed, 36 insertions, 30 deletions

diff --git a/mm/slub.c b/mm/slub.c
index 55b508d..2b50b97 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2272,6 +2272,40 @@ panic:
 	panic("Creation of kmalloc slab %s size=%d failed.\n", name, size);
 }
 
+#ifdef CONFIG_ZONE_DMA
+static noinline struct kmem_cache *dma_kmalloc_cache(int index, gfp_t flags)
+{
+	struct kmem_cache *s;
+	struct kmem_cache *x;
+	char *text;
+	size_t realsize;
+
+	s = kmalloc_caches_dma[index];
+	if (s)
+		return s;
+
+	/* Dynamically create dma cache */
+	x = kmalloc(kmem_size, flags & ~SLUB_DMA);
+	if (!x)
+		panic("Unable to allocate memory for dma cache\n");
+
+	if (index <= KMALLOC_SHIFT_HIGH)
+		realsize = 1 << index;
+	else {
+		if (index == 1)
+			realsize = 96;
+		else
+			realsize = 192;
+	}
+
+	text = kasprintf(flags & ~SLUB_DMA, "kmalloc_dma-%d",
+			(unsigned int)realsize);
+	s = create_kmalloc_cache(x, text, realsize, flags);
+	kmalloc_caches_dma[index] = s;
+	return s;
+}
+#endif
+
 static struct kmem_cache *get_slab(size_t size, gfp_t flags)
 {
 	int index = kmalloc_index(size);
@@ -2284,36 +2318,8 @@ static struct kmem_cache *get_slab(size_t size, gfp_t flags)
 		return NULL;
 
 #ifdef CONFIG_ZONE_DMA
-	if ((flags & SLUB_DMA)) {
-		struct kmem_cache *s;
-		struct kmem_cache *x;
-		char *text;
-		size_t realsize;
-
-		s = kmalloc_caches_dma[index];
-		if (s)
-			return s;
-
-		/* Dynamically create dma cache */
-		x = kmalloc(kmem_size, flags & ~SLUB_DMA);
-		if (!x)
-			panic("Unable to allocate memory for dma cache\n");
-
-		if (index <= KMALLOC_SHIFT_HIGH)
-			realsize = 1 << index;
-		else {
-			if (index == 1)
-				realsize = 96;
-			else
-				realsize = 192;
-		}
-
-		text = kasprintf(flags & ~SLUB_DMA, "kmalloc_dma-%d",
-				(unsigned int)realsize);
-		s = create_kmalloc_cache(x, text, realsize, flags);
-		kmalloc_caches_dma[index] = s;
-		return s;
-	}
+	if ((flags & SLUB_DMA))
+		return dma_kmalloc_cache(index, flags);
 #endif
 	return &kmalloc_caches[index];
 }