diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/kmemcheck.c | 1 | ||||
| -rw-r--r-- | mm/slab.h | 35 | ||||
| -rw-r--r-- | mm/slab_common.c | 9 |
3 files changed, 45 insertions, 0 deletions
diff --git a/mm/kmemcheck.c b/mm/kmemcheck.c index fd814fd..cab58bb 100644 --- a/mm/kmemcheck.c +++ b/mm/kmemcheck.c @@ -2,6 +2,7 @@ #include <linux/mm_types.h> #include <linux/mm.h> #include <linux/slab.h> +#include "slab.h" #include <linux/kmemcheck.h> void kmemcheck_alloc_shadow(struct page *page, int order, gfp_t flags, int node) @@ -4,6 +4,41 @@ * Internal slab definitions */ +#ifdef CONFIG_SLOB +/* + * Common fields provided in kmem_cache by all slab allocators + * This struct is either used directly by the allocator (SLOB) + * or the allocator must include definitions for all fields + * provided in kmem_cache_common in their definition of kmem_cache. + * + * Once we can do anonymous structs (C11 standard) we could put a + * anonymous struct definition in these allocators so that the + * separate allocations in the kmem_cache structure of SLAB and + * SLUB is no longer needed. + */ +struct kmem_cache { + unsigned int object_size;/* The original size of the object */ + unsigned int size; /* The aligned/padded/added on size */ + unsigned int align; /* Alignment as calculated */ + unsigned long flags; /* Active flags on the slab */ + const char *name; /* Slab name for sysfs */ + int refcount; /* Use counter */ + void (*ctor)(void *); /* Called on object slot creation */ + struct list_head list; /* List of all slab caches on the system */ +}; + +#endif /* CONFIG_SLOB */ + +#ifdef CONFIG_SLAB +#include <linux/slab_def.h> +#endif + +#ifdef CONFIG_SLUB +#include <linux/slub_def.h> +#endif + +#include <linux/memcontrol.h> + /* * State of the slab allocator. * diff --git a/mm/slab_common.c b/mm/slab_common.c index cabb842..d7d8ffd 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -30,6 +30,15 @@ LIST_HEAD(slab_caches); DEFINE_MUTEX(slab_mutex); struct kmem_cache *kmem_cache; +/* + * Determine the size of a slab object + */ +unsigned int kmem_cache_size(struct kmem_cache *s) +{ + return s->object_size; +} +EXPORT_SYMBOL(kmem_cache_size); + #ifdef CONFIG_DEBUG_VM static int kmem_cache_sanity_check(const char *name, size_t size) { |
