diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 8508f97..c881417 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -1057,8 +1057,7 @@
 	huge_pgtable_cache = kmem_cache_create("hugepte_cache",
 					       HUGEPTE_TABLE_SIZE,
 					       HUGEPTE_TABLE_SIZE,
-					       SLAB_HWCACHE_ALIGN |
-					       SLAB_MUST_HWCACHE_ALIGN,
+					       SLAB_HWCACHE_ALIGN,
 					       zero_ctor, NULL);
 	if (! huge_pgtable_cache)
 		panic("hugetlbpage_init(): could not create hugepte cache\n");
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index d12a87e..5a77501 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -183,8 +183,7 @@
 		    "for size: %08x...\n", name, i, size);
 		pgtable_cache[i] = kmem_cache_create(name,
 						     size, size,
-						     SLAB_HWCACHE_ALIGN |
-						     SLAB_MUST_HWCACHE_ALIGN,
+						     SLAB_HWCACHE_ALIGN,
 						     zero_ctor,
 						     NULL);
 		if (! pgtable_cache[i])
diff --git a/arch/sparc64/mm/tsb.c b/arch/sparc64/mm/tsb.c
index 57eb302..4be378d 100644
--- a/arch/sparc64/mm/tsb.c
+++ b/arch/sparc64/mm/tsb.c
@@ -262,8 +262,7 @@
 
 		tsb_caches[i] = kmem_cache_create(name,
 						  size, size,
-						  SLAB_HWCACHE_ALIGN |
-						  SLAB_MUST_HWCACHE_ALIGN,
+						  SLAB_HWCACHE_ALIGN,
 						  NULL, NULL);
 		if (!tsb_caches[i]) {
 			prom_printf("Could not create %s cache\n", name);
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 67425c2..a9befa5 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -26,7 +26,6 @@
 #define SLAB_POISON		0x00000800UL	/* DEBUG: Poison objects */
 #define SLAB_HWCACHE_ALIGN	0x00002000UL	/* Align objs on cache lines */
 #define SLAB_CACHE_DMA		0x00004000UL	/* Use GFP_DMA memory */
-#define SLAB_MUST_HWCACHE_ALIGN	0x00008000UL	/* Force alignment even if debuggin is active */
 #define SLAB_STORE_USER		0x00010000UL	/* DEBUG: Store the last owner for bug hunting */
 #define SLAB_RECLAIM_ACCOUNT	0x00020000UL	/* Objects are reclaimable */
 #define SLAB_PANIC		0x00040000UL	/* Panic if kmem_cache_create() fails */
diff --git a/mm/slab.c b/mm/slab.c
index 997c3b2..583644f 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -175,12 +175,12 @@
 # define CREATE_MASK	(SLAB_DEBUG_INITIAL | SLAB_RED_ZONE | \
 			 SLAB_POISON | SLAB_HWCACHE_ALIGN | \
 			 SLAB_CACHE_DMA | \
-			 SLAB_MUST_HWCACHE_ALIGN | SLAB_STORE_USER | \
+			 SLAB_STORE_USER | \
 			 SLAB_RECLAIM_ACCOUNT | SLAB_PANIC | \
 			 SLAB_DESTROY_BY_RCU | SLAB_MEM_SPREAD)
 #else
 # define CREATE_MASK	(SLAB_HWCACHE_ALIGN | \
-			 SLAB_CACHE_DMA | SLAB_MUST_HWCACHE_ALIGN | \
+			 SLAB_CACHE_DMA | \
 			 SLAB_RECLAIM_ACCOUNT | SLAB_PANIC | \
 			 SLAB_DESTROY_BY_RCU | SLAB_MEM_SPREAD)
 #endif
diff --git a/mm/slob.c b/mm/slob.c
index 77786be..c9401a7 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -21,7 +21,7 @@
  *
  * SLAB is emulated on top of SLOB by simply calling constructors and
  * destructors for every SLAB allocation. Objects are returned with
- * the 8-byte alignment unless the SLAB_MUST_HWCACHE_ALIGN flag is
+ * the 8-byte alignment unless the SLAB_HWCACHE_ALIGN flag is
  * set, in which case the low-level allocator will fragment blocks to
  * create the proper alignment. Again, objects of page-size or greater
  * are allocated by calling __get_free_pages. As SLAB objects know
@@ -295,7 +295,7 @@
 		c->ctor = ctor;
 		c->dtor = dtor;
 		/* ignore alignment unless it's forced */
-		c->align = (flags & SLAB_MUST_HWCACHE_ALIGN) ? SLOB_ALIGN : 0;
+		c->align = (flags & SLAB_HWCACHE_ALIGN) ? SLOB_ALIGN : 0;
 		if (c->align < align)
 			c->align = align;
 	} else if (flags & SLAB_PANIC)
diff --git a/mm/slub.c b/mm/slub.c
index 3904002..79940e9 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1496,7 +1496,7 @@
 	 * specified alignment though. If that is greater
 	 * then use it.
 	 */
-	if ((flags & (SLAB_MUST_HWCACHE_ALIGN | SLAB_HWCACHE_ALIGN)) &&
+	if ((flags & SLAB_HWCACHE_ALIGN) &&
 			size > L1_CACHE_BYTES / 2)
 		return max_t(unsigned long, align, L1_CACHE_BYTES);
 
@@ -3142,8 +3142,7 @@
 
 static ssize_t hwcache_align_show(struct kmem_cache *s, char *buf)
 {
-	return sprintf(buf, "%d\n", !!(s->flags &
-		(SLAB_HWCACHE_ALIGN|SLAB_MUST_HWCACHE_ALIGN)));
+	return sprintf(buf, "%d\n", !!(s->flags & SLAB_HWCACHE_ALIGN));
 }
 SLAB_ATTR_RO(hwcache_align);