Slab allocators: remove useless __GFP_NO_GROW flag

There is no user remaining and I have never seen any use of that flag.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 3 insertions, 9 deletions

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 2a7d15bcde46..97a36c3d96e2 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -40,7 +40,6 @@ struct vm_area_struct;
 #define __GFP_REPEAT    ((__force gfp_t)0x400u) /* Retry the allocation.  Might fail */
 #define __GFP_NOFAIL    ((__force gfp_t)0x800u) /* Retry for ever.  Cannot fail */
 #define __GFP_NORETRY   ((__force gfp_t)0x1000u)/* Do not retry.  Might fail */
-#define __GFP_NO_GROW   ((__force gfp_t)0x2000u)/* Slab internal usage */
 #define __GFP_COMP      ((__force gfp_t)0x4000u)/* Add compound page metadata */
 #define __GFP_ZERO      ((__force gfp_t)0x8000u)/* Return zeroed page on success */
 #define __GFP_NOMEMALLOC ((__force gfp_t)0x10000u) /* Don't use emergency reserves */
@@ -53,7 +52,7 @@ struct vm_area_struct;
 /* if you forget to add the bitmask here kernel will crash, period */
 #define GFP_LEVEL_MASK (__GFP_WAIT|__GFP_HIGH|__GFP_IO|__GFP_FS| \
                         __GFP_COLD|__GFP_NOWARN|__GFP_REPEAT| \
-                        __GFP_NOFAIL|__GFP_NORETRY|__GFP_NO_GROW|__GFP_COMP| \
+                        __GFP_NOFAIL|__GFP_NORETRY|__GFP_COMP| \
                         __GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_THISNODE)
 
 /* This equals 0, but use constants in case they ever change */
diff --git a/mm/slab.c b/mm/slab.c
index 52ecf7599a7b..5920a412b377 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2746,9 +2746,7 @@ static int cache_grow(struct kmem_cache *cachep,
          * Be lazy and only check for valid flags here,  keeping it out of the
          * critical path in kmem_cache_alloc().
          */
-        BUG_ON(flags & ~(GFP_DMA | GFP_LEVEL_MASK | __GFP_NO_GROW));
-        if (flags & __GFP_NO_GROW)
-                return 0;
+        BUG_ON(flags & ~(GFP_DMA | GFP_LEVEL_MASK));
 
         ctor_flags = SLAB_CTOR_CONSTRUCTOR;
         local_flags = (flags & GFP_LEVEL_MASK);
@@ -3252,7 +3250,7 @@ retry:
                                         flags | GFP_THISNODE, nid);
         }
 
-        if (!obj && !(flags & __GFP_NO_GROW)) {
+        if (!obj) {
                 /*
                  * This allocation will be performed within the constraints
                  * of the current cpuset / memory policy requirements.
diff --git a/mm/slub.c b/mm/slub.c
index 347e44821bcb..a6323484dd3e 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -815,9 +815,6 @@ static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node)
         void *last;
         void *p;
 
-        if (flags & __GFP_NO_GROW)
-                return NULL;
-
         BUG_ON(flags & ~(GFP_DMA | GFP_LEVEL_MASK));
 
         if (flags & __GFP_WAIT)