Merge remote branch 'slab/for-next'

4 files changed, 53 insertions, 40 deletions

diff --git a/Documentation/vm/Makefile b/Documentation/vm/Makefile
index 9dcff328b964..3fa4d0668864 100644
--- a/Documentation/vm/Makefile
+++ b/Documentation/vm/Makefile
@@ -2,7 +2,7 @@
 obj- := dummy.o
 
 # List of programs to build
-hostprogs-y := slabinfo page-types hugepage-mmap hugepage-shm map_hugetlb
+hostprogs-y := page-types hugepage-mmap hugepage-shm map_hugetlb
 
 # Tell kbuild to always build the programs
 always := $(hostprogs-y)
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index e4f5ed180b9b..8b6e8ae5d5ca 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -10,9 +10,8 @@
 #include <linux/gfp.h>
 #include <linux/workqueue.h>
 #include <linux/kobject.h>
-#include <linux/kmemleak.h>
 
-#include <trace/events/kmem.h>
+#include <linux/kmemleak.h>
 
 enum stat_item {
 	ALLOC_FASTPATH,		/* Allocation from cpu slab */
@@ -216,31 +215,40 @@ static __always_inline struct kmem_cache *kmalloc_slab(size_t size)
 void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
 void *__kmalloc(size_t size, gfp_t flags);
 
+static __always_inline void *
+kmalloc_order(size_t size, gfp_t flags, unsigned int order)
+{
+	void *ret = (void *) __get_free_pages(flags | __GFP_COMP, order);
+	kmemleak_alloc(ret, size, 1, flags);
+	return ret;
+}
+
 #ifdef CONFIG_TRACING
-extern void *kmem_cache_alloc_notrace(struct kmem_cache *s, gfp_t gfpflags);
+extern void *
+kmem_cache_alloc_trace(struct kmem_cache *s, gfp_t gfpflags, size_t size);
+extern void *kmalloc_order_trace(size_t size, gfp_t flags, unsigned int order);
 #else
 static __always_inline void *
-kmem_cache_alloc_notrace(struct kmem_cache *s, gfp_t gfpflags)
+kmem_cache_alloc_trace(struct kmem_cache *s, gfp_t gfpflags, size_t size)
 {
 	return kmem_cache_alloc(s, gfpflags);
 }
+
+static __always_inline void *
+kmalloc_order_trace(size_t size, gfp_t flags, unsigned int order)
+{
+	return kmalloc_order(size, flags, order);
+}
 #endif
 
 static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
 {
 	unsigned int order = get_order(size);
-	void *ret = (void *) __get_free_pages(flags | __GFP_COMP, order);
-
-	kmemleak_alloc(ret, size, 1, flags);
-	trace_kmalloc(_THIS_IP_, ret, size, PAGE_SIZE << order, flags);
-
-	return ret;
+	return kmalloc_order_trace(size, flags, order);
 }
 
 static __always_inline void *kmalloc(size_t size, gfp_t flags)
 {
-	void *ret;
-
 	if (__builtin_constant_p(size)) {
 		if (size > SLUB_MAX_SIZE)
 			return kmalloc_large(size, flags);
@@ -251,11 +259,7 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags)
 			if (!s)
 				return ZERO_SIZE_PTR;
 
-			ret = kmem_cache_alloc_notrace(s, flags);
-
-			trace_kmalloc(_THIS_IP_, ret, size, s->size, flags);
-
-			return ret;
+			return kmem_cache_alloc_trace(s, flags, size);
 		}
 	}
 	return __kmalloc(size, flags);
@@ -266,14 +270,14 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node);
 void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
 
 #ifdef CONFIG_TRACING
-extern void *kmem_cache_alloc_node_notrace(struct kmem_cache *s,
+extern void *kmem_cache_alloc_node_trace(struct kmem_cache *s,
 					   gfp_t gfpflags,
-					   int node);
+					   int node, size_t size);
 #else
 static __always_inline void *
-kmem_cache_alloc_node_notrace(struct kmem_cache *s,
+kmem_cache_alloc_node_trace(struct kmem_cache *s,
 			      gfp_t gfpflags,
-			      int node)
+			      int node, size_t size)
 {
 	return kmem_cache_alloc_node(s, gfpflags, node);
 }
@@ -281,8 +285,6 @@ kmem_cache_alloc_node_notrace(struct kmem_cache *s,
 
 static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
 {
-	void *ret;
-
 	if (__builtin_constant_p(size) &&
 		size <= SLUB_MAX_SIZE && !(flags & SLUB_DMA)) {
 			struct kmem_cache *s = kmalloc_slab(size);
@@ -290,12 +292,7 @@ static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
 		if (!s)
 			return ZERO_SIZE_PTR;
 
-		ret = kmem_cache_alloc_node_notrace(s, flags, node);
-
-		trace_kmalloc_node(_THIS_IP_, ret,
-				   size, s->size, flags, node);
-
-		return ret;
+		return kmem_cache_alloc_node_trace(s, flags, node, size);
 	}
 	return __kmalloc_node(size, flags, node);
 }
diff --git a/mm/slub.c b/mm/slub.c
index 981fb730aa04..7796a0446b3f 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -28,6 +28,8 @@
 #include <linux/math64.h>
 #include <linux/fault-inject.h>
 
+#include <trace/events/kmem.h>
+
 /*
  * Lock order:
  *   1. slab_lock(page)
@@ -1774,11 +1776,21 @@ void *kmem_cache_alloc(struct kmem_cache *s, gfp_t gfpflags)
 EXPORT_SYMBOL(kmem_cache_alloc);
 
 #ifdef CONFIG_TRACING
-void *kmem_cache_alloc_notrace(struct kmem_cache *s, gfp_t gfpflags)
+void *kmem_cache_alloc_trace(struct kmem_cache *s, gfp_t gfpflags, size_t size)
+{
+	void *ret = slab_alloc(s, gfpflags, NUMA_NO_NODE, _RET_IP_);
+	trace_kmalloc(_RET_IP_, ret, size, s->size, gfpflags);
+	return ret;
+}
+EXPORT_SYMBOL(kmem_cache_alloc_trace);
+
+void *kmalloc_order_trace(size_t size, gfp_t flags, unsigned int order)
 {
-	return slab_alloc(s, gfpflags, NUMA_NO_NODE, _RET_IP_);
+	void *ret = kmalloc_order(size, flags, order);
+	trace_kmalloc(_RET_IP_, ret, size, PAGE_SIZE << order, flags);
+	return ret;
 }
-EXPORT_SYMBOL(kmem_cache_alloc_notrace);
+EXPORT_SYMBOL(kmalloc_order_trace);
 #endif
 
 #ifdef CONFIG_NUMA
@@ -1794,13 +1806,17 @@ void *kmem_cache_alloc_node(struct kmem_cache *s, gfp_t gfpflags, int node)
 EXPORT_SYMBOL(kmem_cache_alloc_node);
 
 #ifdef CONFIG_TRACING
-void *kmem_cache_alloc_node_notrace(struct kmem_cache *s,
+void *kmem_cache_alloc_node_trace(struct kmem_cache *s,
 				    gfp_t gfpflags,
-				    int node)
+				    int node, size_t size)
 {
-	return slab_alloc(s, gfpflags, node, _RET_IP_);
+	void *ret = slab_alloc(s, gfpflags, node, _RET_IP_);
+
+	trace_kmalloc_node(_RET_IP_, ret,
+			   size, s->size, gfpflags, node);
+	return ret;
 }
-EXPORT_SYMBOL(kmem_cache_alloc_node_notrace);
+EXPORT_SYMBOL(kmem_cache_alloc_node_trace);
 #endif
 #endif
 
diff --git a/Documentation/vm/slabinfo.c b/tools/slub/slabinfo.c
index 92e729f4b676..516551c9f172 100644
--- a/Documentation/vm/slabinfo.c
+++ b/tools/slub/slabinfo.c
@@ -607,7 +607,7 @@ static int debug_opt_scan(char *opt)
 	}
 
 	for ( ; *opt; opt++)
-	 	switch (*opt) {
+		switch (*opt) {
 		case 'F' : case 'f':
 			if (sanity)
 				return 0;
@@ -1127,7 +1127,7 @@ static void read_slab_dir(void)
 				continue;
 		switch (de->d_type) {
 		   case DT_LNK:
-		   	alias->name = strdup(de->d_name);
+			alias->name = strdup(de->d_name);
 			count = readlink(de->d_name, buffer, sizeof(buffer));
 
 			if (count < 0)
@@ -1143,7 +1143,7 @@ static void read_slab_dir(void)
 		   case DT_DIR:
 			if (chdir(de->d_name))
 				fatal("Unable to access slab %s\n", slab->name);
-		   	slab->name = strdup(de->d_name);
+			slab->name = strdup(de->d_name);
 			slab->alias = 0;
 			slab->refs = 0;
 			slab->aliases = get_obj("aliases");