7 files changed, 9 insertions, 14 deletions

diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 8508f973d9cc..c8814177b716 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -1057,8 +1057,7 @@ static int __init hugetlbpage_init(void)
         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 d12a87ec5ae9..5a7750147b7d 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -183,8 +183,7 @@ void pgtable_cache_init(void)
                     "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 57eb3025537a..4be378d9a382 100644
--- a/arch/sparc64/mm/tsb.c
+++ b/arch/sparc64/mm/tsb.c
@@ -262,8 +262,7 @@ void __init pgtable_cache_init(void)
 
                 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 67425c277e12..a9befa50d3e3 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -26,7 +26,6 @@ typedef struct kmem_cache kmem_cache_t __deprecated;
 #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 997c3b2f50c9..583644f6ae11 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 77786be032e0..c9401a7eaa5f 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 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size,
                 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 3904002bdb35..79940e98e5e6 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1496,7 +1496,7 @@ static unsigned long calculate_alignment(unsigned long flags,
          * 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 @@ SLAB_ATTR(reclaim_account);
 
 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);