Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux

Pull SLAB changes from Pekka Enberg:
 "New and noteworthy:

  * More SLAB allocator unification patches from Christoph Lameter and
    others.  This paves the way for slab memcg patches that hopefully
    will land in v3.8.

  * SLAB tracing improvements from Ezequiel Garcia.

  * Kernel tainting upon SLAB corruption from Dave Jones.

  * Miscellanous SLAB allocator bug fixes and improvements from various
    people."

* 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux: (43 commits)
  slab: Fix build failure in __kmem_cache_create()
  slub: init_kmem_cache_cpus() and put_cpu_partial() can be static
  mm/slab: Fix kmem_cache_alloc_node_trace() declaration
  Revert "mm/slab: Fix kmem_cache_alloc_node_trace() declaration"
  mm, slob: fix build breakage in __kmalloc_node_track_caller
  mm/slab: Fix kmem_cache_alloc_node_trace() declaration
  mm/slab: Fix typo _RET_IP -> _RET_IP_
  mm, slub: Rename slab_alloc() -> slab_alloc_node() to match SLAB
  mm, slab: Rename __cache_alloc() -> slab_alloc()
  mm, slab: Match SLAB and SLUB kmem_cache_alloc_xxx_trace() prototype
  mm, slab: Replace 'caller' type, void* -> unsigned long
  mm, slob: Add support for kmalloc_track_caller()
  mm, slab: Remove silly function slab_buffer_size()
  mm, slob: Use NUMA_NO_NODE instead of -1
  mm, sl[au]b: Taint kernel when we detect a corrupted slab
  slab: Only define slab_error for DEBUG
  slab: fix the DEADLOCK issue on l3 alien lock
  slub: Zero initial memory segment for kmem_cache and kmem_cache_node
  Revert "mm/sl[aou]b: Move sysfs_slab_add to common"
  mm/sl[aou]b: Move kmem_cache refcounting to common code
  ...

9 files changed, 463 insertions, 436 deletions

diff --git a/include/linux/slab.h b/include/linux/slab.h
index 0dd2dfa7beca..83d1a1454b7e 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -321,7 +321,8 @@ static inline void *kmem_cache_alloc_node(struct kmem_cache *cachep,
  * request comes from.
  */
 #if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
-        (defined(CONFIG_SLAB) && defined(CONFIG_TRACING))
+        (defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) || \
+        (defined(CONFIG_SLOB) && defined(CONFIG_TRACING))
 extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long);
 #define kmalloc_track_caller(size, flags) \
         __kmalloc_track_caller(size, flags, _RET_IP_)
@@ -340,7 +341,8 @@ extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long);
  * allocation request comes from.
  */
 #if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
-        (defined(CONFIG_SLAB) && defined(CONFIG_TRACING))
+        (defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) || \
+        (defined(CONFIG_SLOB) && defined(CONFIG_TRACING))
 extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long);
 #define kmalloc_node_track_caller(size, flags, node) \
         __kmalloc_node_track_caller(size, flags, node, \
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index 0c634fa376c9..cc290f0bdb34 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -45,7 +45,6 @@ struct kmem_cache {
         unsigned int colour_off;        /* colour offset */
         struct kmem_cache *slabp_cache;
         unsigned int slab_size;
-        unsigned int dflags;            /* dynamic flags */
 
         /* constructor func */
         void (*ctor)(void *obj);
@@ -112,19 +111,13 @@ void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
 void *__kmalloc(size_t size, gfp_t flags);
 
 #ifdef CONFIG_TRACING
-extern void *kmem_cache_alloc_trace(size_t size,
-                                    struct kmem_cache *cachep, gfp_t flags);
-extern size_t slab_buffer_size(struct kmem_cache *cachep);
+extern void *kmem_cache_alloc_trace(struct kmem_cache *, gfp_t, size_t);
 #else
 static __always_inline void *
-kmem_cache_alloc_trace(size_t size, struct kmem_cache *cachep, gfp_t flags)
+kmem_cache_alloc_trace(struct kmem_cache *cachep, gfp_t flags, size_t size)
 {
         return kmem_cache_alloc(cachep, flags);
 }
-static inline size_t slab_buffer_size(struct kmem_cache *cachep)
-{
-        return 0;
-}
 #endif
 
 static __always_inline void *kmalloc(size_t size, gfp_t flags)
@@ -154,7 +147,7 @@ found:
 #endif
                         cachep = malloc_sizes[i].cs_cachep;
 
-                ret = kmem_cache_alloc_trace(size, cachep, flags);
+                ret = kmem_cache_alloc_trace(cachep, flags, size);
 
                 return ret;
         }
@@ -166,16 +159,16 @@ extern void *__kmalloc_node(size_t size, gfp_t flags, int node);
 extern void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
 
 #ifdef CONFIG_TRACING
-extern void *kmem_cache_alloc_node_trace(size_t size,
-                                         struct kmem_cache *cachep,
+extern void *kmem_cache_alloc_node_trace(struct kmem_cache *cachep,
                                          gfp_t flags,
-                                         int nodeid);
+                                         int nodeid,
+                                         size_t size);
 #else
 static __always_inline void *
-kmem_cache_alloc_node_trace(size_t size,
-                            struct kmem_cache *cachep,
+kmem_cache_alloc_node_trace(struct kmem_cache *cachep,
                             gfp_t flags,
-                            int nodeid)
+                            int nodeid,
+                            size_t size)
 {
         return kmem_cache_alloc_node(cachep, flags, nodeid);
 }
@@ -207,7 +200,7 @@ found:
 #endif
                         cachep = malloc_sizes[i].cs_cachep;
 
-                return kmem_cache_alloc_node_trace(size, cachep, flags, node);
+                return kmem_cache_alloc_node_trace(cachep, flags, node, size);
         }
         return __kmalloc_node(size, flags, node);
 }
diff --git a/include/linux/slob_def.h b/include/linux/slob_def.h
index 0ec00b39d006..f28e14a12e3f 100644
--- a/include/linux/slob_def.h
+++ b/include/linux/slob_def.h
@@ -1,12 +1,14 @@
 #ifndef __LINUX_SLOB_DEF_H
 #define __LINUX_SLOB_DEF_H
 
+#include <linux/numa.h>
+
 void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
 
 static __always_inline void *kmem_cache_alloc(struct kmem_cache *cachep,
                                               gfp_t flags)
 {
-        return kmem_cache_alloc_node(cachep, flags, -1);
+        return kmem_cache_alloc_node(cachep, flags, NUMA_NO_NODE);
 }
 
 void *__kmalloc_node(size_t size, gfp_t flags, int node);
@@ -26,7 +28,7 @@ static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
  */
 static __always_inline void *kmalloc(size_t size, gfp_t flags)
 {
-        return __kmalloc_node(size, flags, -1);
+        return __kmalloc_node(size, flags, NUMA_NO_NODE);
 }
 
 static __always_inline void *__kmalloc(size_t size, gfp_t flags)
diff --git a/mm/slab.c b/mm/slab.c
index 11339110271e..33d3363658df 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -498,14 +498,6 @@ static void **dbg_userword(struct kmem_cache *cachep, void *objp)
 
 #endif
 
-#ifdef CONFIG_TRACING
-size_t slab_buffer_size(struct kmem_cache *cachep)
-{
-        return cachep->size;
-}
-EXPORT_SYMBOL(slab_buffer_size);
-#endif
-
 /*
  * Do not go above this order unless 0 objects fit into the slab or
  * overridden on the command line.
@@ -515,13 +507,6 @@ EXPORT_SYMBOL(slab_buffer_size);
 static int slab_max_order = SLAB_MAX_ORDER_LO;
 static bool slab_max_order_set __initdata;
 
-static inline struct kmem_cache *page_get_cache(struct page *page)
-{
-        page = compound_head(page);
-        BUG_ON(!PageSlab(page));
-        return page->slab_cache;
-}
-