X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Flinux%2Fslub_def.h;h=0764c829d967ab8c1841cddf79ba51204956e4a8;hb=b7add02d6247bff34005e040347d81777c80931c;hp=ea27065e80e636d6a9b41e7a49144186cf79020d;hpb=643b113849d8faa68c9f01c3c9d929bfbffd50bd;p=powerpc.git

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index ea27065e80..0764c829d9 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -40,7 +40,6 @@ struct kmem_cache {
 	int objects;		/* Number of objects in slab */
 	int refcount;		/* Refcount for slab cache destroy */
 	void (*ctor)(void *, struct kmem_cache *, unsigned long);
-	void (*dtor)(void *, struct kmem_cache *, unsigned long);
 	int inuse;		/* Offset to metadata */
 	int align;		/* Alignment */
 	const char *name;	/* Name (only for display!) */
@@ -59,16 +58,6 @@ struct kmem_cache {
  */
 #define KMALLOC_SHIFT_LOW 3
 
-#ifdef CONFIG_LARGE_ALLOCS
-#define KMALLOC_SHIFT_HIGH 25
-#else
-#if !defined(CONFIG_MMU) || NR_CPUS > 512 || MAX_NUMNODES > 256
-#define KMALLOC_SHIFT_HIGH 20
-#else
-#define KMALLOC_SHIFT_HIGH 18
-#endif
-#endif
-
 /*
  * We keep the general caches in an array of slab caches that are used for
  * 2^x bytes of allocations.
@@ -79,7 +68,7 @@ extern struct kmem_cache kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
  * Sorry that the following has to be that ugly but some versions of GCC
  * have trouble with constant propagation and loops.
  */
-static inline int kmalloc_index(int size)
+static inline int kmalloc_index(size_t size)
 {
 	/*
 	 * We should return 0 if size == 0 but we use the smallest object
@@ -87,6 +76,9 @@ static inline int kmalloc_index(int size)
 	 */
 	WARN_ON_ONCE(size == 0);
 
+	if (size > KMALLOC_MAX_SIZE)
+		return -1;
+
 	if (size > 64 && size <= 96)
 		return 1;
 	if (size > 128 && size <= 192)
@@ -107,17 +99,13 @@ static inline int kmalloc_index(int size)
 	if (size <=  64 * 1024) return 16;
 	if (size <= 128 * 1024) return 17;
 	if (size <= 256 * 1024) return 18;
-#if KMALLOC_SHIFT_HIGH > 18
 	if (size <=  512 * 1024) return 19;
 	if (size <= 1024 * 1024) return 20;
-#endif
-#if KMALLOC_SHIFT_HIGH > 20
 	if (size <=  2 * 1024 * 1024) return 21;
 	if (size <=  4 * 1024 * 1024) return 22;
 	if (size <=  8 * 1024 * 1024) return 23;
 	if (size <= 16 * 1024 * 1024) return 24;
 	if (size <= 32 * 1024 * 1024) return 25;
-#endif
 	return -1;
 
 /*
@@ -142,7 +130,12 @@ static inline struct kmem_cache *kmalloc_slab(size_t size)
 	if (index == 0)
 		return NULL;
 
-	if (index < 0) {
+	/*
+	 * This function only gets expanded if __builtin_constant_p(size), so
+	 * testing it here shouldn't be needed.  But some versions of gcc need
+	 * help.
+	 */
+	if (__builtin_constant_p(size) && index < 0) {
 		/*
 		 * Generate a link failure. Would be great if we could
 		 * do something to stop the compile here.