diff options
Diffstat (limited to 'kern/slab.h')
| -rw-r--r-- | kern/slab.h | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/kern/slab.h b/kern/slab.h index c7be169..bbd9d41 100644 --- a/kern/slab.h +++ b/kern/slab.h @@ -155,6 +155,16 @@ typedef void (*kmem_slab_free_fn_t)(vm_offset_t, vm_size_t); #define KMEM_CACHE_NAME_SIZE 24 /* + * Cache flags. + * + * The flags don't change once set and can be tested without locking. + */ +#define KMEM_CF_NO_CPU_POOL 0x1 /* CPU pool layer disabled */ +#define KMEM_CF_SLAB_EXTERNAL 0x2 /* Slab data is off slab */ +#define KMEM_CF_VERIFY 0x4 /* Debugging facilities enabled */ +#define KMEM_CF_DIRECT 0x8 /* No buf-to-slab tree lookup */ + +/* * Cache of objects. * * Locking order : cpu_pool -> cache. CPU pools locking is ordered by CPU ID. @@ -215,12 +225,13 @@ extern vm_map_t kmem_map; */ #define KMEM_CACHE_NOCPUPOOL 0x1 /* Don't use the per-cpu pools */ #define KMEM_CACHE_NOOFFSLAB 0x2 /* Don't allocate external slab data */ -#define KMEM_CACHE_NORECLAIM 0x4 /* Never give slabs back to their source, - implies KMEM_CACHE_NOOFFSLAB */ -#define KMEM_CACHE_VERIFY 0x8 /* Use debugging facilities */ +#define KMEM_CACHE_VERIFY 0x4 /* Use debugging facilities */ /* * Initialize a cache. + * + * If a slab allocation/free function pointer is NULL, the default backend + * (vm_kmem on the kernel map) is used for the allocation/free action. */ void kmem_cache_init(struct kmem_cache *cache, const char *name, size_t obj_size, size_t align, kmem_cache_ctor_t ctor, |