Commit | Line | Data |
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97d06609 CL |
1 | #ifndef MM_SLAB_H |
2 | #define MM_SLAB_H | |
3 | /* | |
4 | * Internal slab definitions | |
5 | */ | |
6 | ||
07f361b2 JK |
7 | #ifdef CONFIG_SLOB |
8 | /* | |
9 | * Common fields provided in kmem_cache by all slab allocators | |
10 | * This struct is either used directly by the allocator (SLOB) | |
11 | * or the allocator must include definitions for all fields | |
12 | * provided in kmem_cache_common in their definition of kmem_cache. | |
13 | * | |
14 | * Once we can do anonymous structs (C11 standard) we could put a | |
15 | * anonymous struct definition in these allocators so that the | |
16 | * separate allocations in the kmem_cache structure of SLAB and | |
17 | * SLUB is no longer needed. | |
18 | */ | |
19 | struct kmem_cache { | |
20 | unsigned int object_size;/* The original size of the object */ | |
21 | unsigned int size; /* The aligned/padded/added on size */ | |
22 | unsigned int align; /* Alignment as calculated */ | |
23 | unsigned long flags; /* Active flags on the slab */ | |
24 | const char *name; /* Slab name for sysfs */ | |
25 | int refcount; /* Use counter */ | |
26 | void (*ctor)(void *); /* Called on object slot creation */ | |
27 | struct list_head list; /* List of all slab caches on the system */ | |
28 | }; | |
29 | ||
30 | #endif /* CONFIG_SLOB */ | |
31 | ||
32 | #ifdef CONFIG_SLAB | |
33 | #include <linux/slab_def.h> | |
34 | #endif | |
35 | ||
36 | #ifdef CONFIG_SLUB | |
37 | #include <linux/slub_def.h> | |
38 | #endif | |
39 | ||
40 | #include <linux/memcontrol.h> | |
11c7aec2 JDB |
41 | #include <linux/fault-inject.h> |
42 | #include <linux/kmemcheck.h> | |
43 | #include <linux/kasan.h> | |
44 | #include <linux/kmemleak.h> | |
7c00fce9 | 45 | #include <linux/random.h> |
d92a8cfc | 46 | #include <linux/sched/mm.h> |
07f361b2 | 47 | |
97d06609 CL |
48 | /* |
49 | * State of the slab allocator. | |
50 | * | |
51 | * This is used to describe the states of the allocator during bootup. | |
52 | * Allocators use this to gradually bootstrap themselves. Most allocators | |
53 | * have the problem that the structures used for managing slab caches are | |
54 | * allocated from slab caches themselves. | |
55 | */ | |
56 | enum slab_state { | |
57 | DOWN, /* No slab functionality yet */ | |
58 | PARTIAL, /* SLUB: kmem_cache_node available */ | |
ce8eb6c4 | 59 | PARTIAL_NODE, /* SLAB: kmalloc size for node struct available */ |
97d06609 CL |
60 | UP, /* Slab caches usable but not all extras yet */ |
61 | FULL /* Everything is working */ | |
62 | }; | |
63 | ||
64 | extern enum slab_state slab_state; | |
65 | ||
18004c5d CL |
66 | /* The slab cache mutex protects the management structures during changes */ |
67 | extern struct mutex slab_mutex; | |
9b030cb8 CL |
68 | |
69 | /* The list of all slab caches on the system */ | |
18004c5d CL |
70 | extern struct list_head slab_caches; |
71 | ||
9b030cb8 CL |
72 | /* The slab cache that manages slab cache information */ |
73 | extern struct kmem_cache *kmem_cache; | |
74 | ||
af3b5f87 VB |
75 | /* A table of kmalloc cache names and sizes */ |
76 | extern const struct kmalloc_info_struct { | |
77 | const char *name; | |
78 | unsigned long size; | |
79 | } kmalloc_info[]; | |
80 | ||
45906855 CL |
81 | unsigned long calculate_alignment(unsigned long flags, |
82 | unsigned long align, unsigned long size); | |
83 | ||
f97d5f63 CL |
84 | #ifndef CONFIG_SLOB |
85 | /* Kmalloc array related functions */ | |
34cc6990 | 86 | void setup_kmalloc_cache_index_table(void); |
f97d5f63 | 87 | void create_kmalloc_caches(unsigned long); |
2c59dd65 CL |
88 | |
89 | /* Find the kmalloc slab corresponding for a certain size */ | |
90 | struct kmem_cache *kmalloc_slab(size_t, gfp_t); | |
f97d5f63 CL |
91 | #endif |
92 | ||
93 | ||
9b030cb8 | 94 | /* Functions provided by the slab allocators */ |
8a13a4cc | 95 | extern int __kmem_cache_create(struct kmem_cache *, unsigned long flags); |
97d06609 | 96 | |
45530c44 CL |
97 | extern struct kmem_cache *create_kmalloc_cache(const char *name, size_t size, |
98 | unsigned long flags); | |
99 | extern void create_boot_cache(struct kmem_cache *, const char *name, | |
100 | size_t size, unsigned long flags); | |
101 | ||
423c929c JK |
102 | int slab_unmergeable(struct kmem_cache *s); |
103 | struct kmem_cache *find_mergeable(size_t size, size_t align, | |
104 | unsigned long flags, const char *name, void (*ctor)(void *)); | |
12220dea | 105 | #ifndef CONFIG_SLOB |
2633d7a0 | 106 | struct kmem_cache * |
a44cb944 VD |
107 | __kmem_cache_alias(const char *name, size_t size, size_t align, |
108 | unsigned long flags, void (*ctor)(void *)); | |
423c929c JK |
109 | |
110 | unsigned long kmem_cache_flags(unsigned long object_size, | |
111 | unsigned long flags, const char *name, | |
112 | void (*ctor)(void *)); | |
cbb79694 | 113 | #else |
2633d7a0 | 114 | static inline struct kmem_cache * |
a44cb944 VD |
115 | __kmem_cache_alias(const char *name, size_t size, size_t align, |
116 | unsigned long flags, void (*ctor)(void *)) | |
cbb79694 | 117 | { return NULL; } |
423c929c JK |
118 | |
119 | static inline unsigned long kmem_cache_flags(unsigned long object_size, | |
120 | unsigned long flags, const char *name, | |
121 | void (*ctor)(void *)) | |
122 | { | |
123 | return flags; | |
124 | } | |
cbb79694 CL |
125 | #endif |
126 | ||
127 | ||
d8843922 GC |
128 | /* Legal flag mask for kmem_cache_create(), for various configurations */ |
129 | #define SLAB_CORE_FLAGS (SLAB_HWCACHE_ALIGN | SLAB_CACHE_DMA | SLAB_PANIC | \ | |
5f0d5a3a | 130 | SLAB_TYPESAFE_BY_RCU | SLAB_DEBUG_OBJECTS ) |
d8843922 GC |
131 | |
132 | #if defined(CONFIG_DEBUG_SLAB) | |
133 | #define SLAB_DEBUG_FLAGS (SLAB_RED_ZONE | SLAB_POISON | SLAB_STORE_USER) | |
134 | #elif defined(CONFIG_SLUB_DEBUG) | |
135 | #define SLAB_DEBUG_FLAGS (SLAB_RED_ZONE | SLAB_POISON | SLAB_STORE_USER | \ | |
becfda68 | 136 | SLAB_TRACE | SLAB_CONSISTENCY_CHECKS) |
d8843922 GC |
137 | #else |
138 | #define SLAB_DEBUG_FLAGS (0) | |
139 | #endif | |
140 | ||
141 | #if defined(CONFIG_SLAB) | |
142 | #define SLAB_CACHE_FLAGS (SLAB_MEM_SPREAD | SLAB_NOLEAKTRACE | \ | |
230e9fc2 VD |
143 | SLAB_RECLAIM_ACCOUNT | SLAB_TEMPORARY | \ |
144 | SLAB_NOTRACK | SLAB_ACCOUNT) | |
d8843922 GC |
145 | #elif defined(CONFIG_SLUB) |
146 | #define SLAB_CACHE_FLAGS (SLAB_NOLEAKTRACE | SLAB_RECLAIM_ACCOUNT | \ | |
230e9fc2 | 147 | SLAB_TEMPORARY | SLAB_NOTRACK | SLAB_ACCOUNT) |
d8843922 GC |
148 | #else |
149 | #define SLAB_CACHE_FLAGS (0) | |
150 | #endif | |
151 | ||
e70954fd | 152 | /* Common flags available with current configuration */ |
d8843922 GC |
153 | #define CACHE_CREATE_MASK (SLAB_CORE_FLAGS | SLAB_DEBUG_FLAGS | SLAB_CACHE_FLAGS) |
154 | ||
e70954fd TG |
155 | /* Common flags permitted for kmem_cache_create */ |
156 | #define SLAB_FLAGS_PERMITTED (SLAB_CORE_FLAGS | \ | |
157 | SLAB_RED_ZONE | \ | |
158 | SLAB_POISON | \ | |
159 | SLAB_STORE_USER | \ | |
160 | SLAB_TRACE | \ | |
161 | SLAB_CONSISTENCY_CHECKS | \ | |
162 | SLAB_MEM_SPREAD | \ | |
163 | SLAB_NOLEAKTRACE | \ | |
164 | SLAB_RECLAIM_ACCOUNT | \ | |
165 | SLAB_TEMPORARY | \ | |
166 | SLAB_NOTRACK | \ | |
167 | SLAB_ACCOUNT) | |
168 | ||
945cf2b6 | 169 | int __kmem_cache_shutdown(struct kmem_cache *); |
52b4b950 | 170 | void __kmem_cache_release(struct kmem_cache *); |
c9fc5864 TH |
171 | int __kmem_cache_shrink(struct kmem_cache *); |
172 | void __kmemcg_cache_deactivate(struct kmem_cache *s); | |
41a21285 | 173 | void slab_kmem_cache_release(struct kmem_cache *); |
945cf2b6 | 174 | |
b7454ad3 GC |
175 | struct seq_file; |
176 | struct file; | |
b7454ad3 | 177 | |
0d7561c6 GC |
178 | struct slabinfo { |
179 | unsigned long active_objs; | |
180 | unsigned long num_objs; | |
181 | unsigned long active_slabs; | |
182 | unsigned long num_slabs; | |
183 | unsigned long shared_avail; | |
184 | unsigned int limit; | |
185 | unsigned int batchcount; | |
186 | unsigned int shared; | |
187 | unsigned int objects_per_slab; | |
188 | unsigned int cache_order; | |
189 | }; | |
190 | ||
191 | void get_slabinfo(struct kmem_cache *s, struct slabinfo *sinfo); | |
192 | void slabinfo_show_stats(struct seq_file *m, struct kmem_cache *s); | |
b7454ad3 GC |
193 | ssize_t slabinfo_write(struct file *file, const char __user *buffer, |
194 | size_t count, loff_t *ppos); | |
ba6c496e | 195 | |
484748f0 CL |
196 | /* |
197 | * Generic implementation of bulk operations | |
198 | * These are useful for situations in which the allocator cannot | |
9f706d68 | 199 | * perform optimizations. In that case segments of the object listed |
484748f0 CL |
200 | * may be allocated or freed using these operations. |
201 | */ | |
202 | void __kmem_cache_free_bulk(struct kmem_cache *, size_t, void **); | |
865762a8 | 203 | int __kmem_cache_alloc_bulk(struct kmem_cache *, gfp_t, size_t, void **); |
484748f0 | 204 | |
127424c8 | 205 | #if defined(CONFIG_MEMCG) && !defined(CONFIG_SLOB) |
510ded33 TH |
206 | |
207 | /* List of all root caches. */ | |
208 | extern struct list_head slab_root_caches; | |
209 | #define root_caches_node memcg_params.__root_caches_node | |
210 | ||
426589f5 VD |
211 | /* |
212 | * Iterate over all memcg caches of the given root cache. The caller must hold | |
213 | * slab_mutex. | |
214 | */ | |
215 | #define for_each_memcg_cache(iter, root) \ | |
9eeadc8b TH |
216 | list_for_each_entry(iter, &(root)->memcg_params.children, \ |
217 | memcg_params.children_node) | |
426589f5 | 218 | |
ba6c496e GC |
219 | static inline bool is_root_cache(struct kmem_cache *s) |
220 | { | |
9eeadc8b | 221 | return !s->memcg_params.root_cache; |
ba6c496e | 222 | } |
2633d7a0 | 223 | |
b9ce5ef4 | 224 | static inline bool slab_equal_or_root(struct kmem_cache *s, |
f7ce3190 | 225 | struct kmem_cache *p) |
b9ce5ef4 | 226 | { |
f7ce3190 | 227 | return p == s || p == s->memcg_params.root_cache; |
b9ce5ef4 | 228 | } |
749c5415 GC |
229 | |
230 | /* | |
231 | * We use suffixes to the name in memcg because we can't have caches | |
232 | * created in the system with the same name. But when we print them | |
233 | * locally, better refer to them with the base name | |
234 | */ | |
235 | static inline const char *cache_name(struct kmem_cache *s) | |
236 | { | |
237 | if (!is_root_cache(s)) | |
f7ce3190 | 238 | s = s->memcg_params.root_cache; |
749c5415 GC |
239 | return s->name; |
240 | } | |
241 | ||
f8570263 VD |
242 | /* |
243 | * Note, we protect with RCU only the memcg_caches array, not per-memcg caches. | |
f7ce3190 VD |
244 | * That said the caller must assure the memcg's cache won't go away by either |
245 | * taking a css reference to the owner cgroup, or holding the slab_mutex. | |
f8570263 | 246 | */ |
2ade4de8 QH |
247 | static inline struct kmem_cache * |
248 | cache_from_memcg_idx(struct kmem_cache *s, int idx) | |
749c5415 | 249 | { |
959c8963 | 250 | struct kmem_cache *cachep; |
f7ce3190 | 251 | struct memcg_cache_array *arr; |
f8570263 VD |
252 | |
253 | rcu_read_lock(); | |
f7ce3190 | 254 | arr = rcu_dereference(s->memcg_params.memcg_caches); |
959c8963 VD |
255 | |
256 | /* | |
257 | * Make sure we will access the up-to-date value. The code updating | |
258 | * memcg_caches issues a write barrier to match this (see | |
f7ce3190 | 259 | * memcg_create_kmem_cache()). |
959c8963 | 260 | */ |
f7ce3190 | 261 | cachep = lockless_dereference(arr->entries[idx]); |
8df0c2dc PK |
262 | rcu_read_unlock(); |
263 | ||
959c8963 | 264 | return cachep; |
749c5415 | 265 | } |
943a451a GC |
266 | |
267 | static inline struct kmem_cache *memcg_root_cache(struct kmem_cache *s) | |
268 | { | |
269 | if (is_root_cache(s)) | |
270 | return s; | |
f7ce3190 | 271 | return s->memcg_params.root_cache; |
943a451a | 272 | } |
5dfb4175 | 273 | |
f3ccb2c4 VD |
274 | static __always_inline int memcg_charge_slab(struct page *page, |
275 | gfp_t gfp, int order, | |
276 | struct kmem_cache *s) | |
5dfb4175 VD |
277 | { |
278 | if (!memcg_kmem_enabled()) | |
279 | return 0; | |
280 | if (is_root_cache(s)) | |
281 | return 0; | |
7779f212 | 282 | return memcg_kmem_charge_memcg(page, gfp, order, s->memcg_params.memcg); |
27ee57c9 VD |
283 | } |
284 | ||
285 | static __always_inline void memcg_uncharge_slab(struct page *page, int order, | |
286 | struct kmem_cache *s) | |
287 | { | |
45264778 VD |
288 | if (!memcg_kmem_enabled()) |
289 | return; | |
27ee57c9 | 290 | memcg_kmem_uncharge(page, order); |
5dfb4175 | 291 | } |
f7ce3190 VD |
292 | |
293 | extern void slab_init_memcg_params(struct kmem_cache *); | |
510ded33 | 294 | extern void memcg_link_cache(struct kmem_cache *s); |
01fb58bc TH |
295 | extern void slab_deactivate_memcg_cache_rcu_sched(struct kmem_cache *s, |
296 | void (*deact_fn)(struct kmem_cache *)); | |
f7ce3190 | 297 | |
127424c8 | 298 | #else /* CONFIG_MEMCG && !CONFIG_SLOB */ |
f7ce3190 | 299 | |
510ded33 TH |
300 | /* If !memcg, all caches are root. */ |
301 | #define slab_root_caches slab_caches | |
302 | #define root_caches_node list | |
303 | ||
426589f5 VD |
304 | #define for_each_memcg_cache(iter, root) \ |
305 | for ((void)(iter), (void)(root); 0; ) | |
426589f5 | 306 | |
ba6c496e GC |
307 | static inline bool is_root_cache(struct kmem_cache *s) |
308 | { | |
309 | return true; | |
310 | } | |
311 | ||
b9ce5ef4 GC |
312 | static inline bool slab_equal_or_root(struct kmem_cache *s, |
313 | struct kmem_cache *p) | |
314 | { | |
315 | return true; | |
316 | } | |
749c5415 GC |
317 | |
318 | static inline const char *cache_name(struct kmem_cache *s) | |
319 | { | |
320 | return s->name; | |
321 | } | |
322 | ||
2ade4de8 QH |
323 | static inline struct kmem_cache * |
324 | cache_from_memcg_idx(struct kmem_cache *s, int idx) | |
749c5415 GC |
325 | { |
326 | return NULL; | |
327 | } | |
943a451a GC |
328 | |
329 | static inline struct kmem_cache *memcg_root_cache(struct kmem_cache *s) | |
330 | { | |
331 | return s; | |
332 | } | |
5dfb4175 | 333 | |
f3ccb2c4 VD |
334 | static inline int memcg_charge_slab(struct page *page, gfp_t gfp, int order, |
335 | struct kmem_cache *s) | |
5dfb4175 VD |
336 | { |
337 | return 0; | |
338 | } | |
339 | ||
27ee57c9 VD |
340 | static inline void memcg_uncharge_slab(struct page *page, int order, |
341 | struct kmem_cache *s) | |
342 | { | |
343 | } | |
344 | ||
f7ce3190 VD |
345 | static inline void slab_init_memcg_params(struct kmem_cache *s) |
346 | { | |
347 | } | |
510ded33 TH |
348 | |
349 | static inline void memcg_link_cache(struct kmem_cache *s) | |
350 | { | |
351 | } | |
352 | ||
127424c8 | 353 | #endif /* CONFIG_MEMCG && !CONFIG_SLOB */ |
b9ce5ef4 GC |
354 | |
355 | static inline struct kmem_cache *cache_from_obj(struct kmem_cache *s, void *x) | |
356 | { | |
357 | struct kmem_cache *cachep; | |
358 | struct page *page; | |
359 | ||
360 | /* | |
361 | * When kmemcg is not being used, both assignments should return the | |
362 | * same value. but we don't want to pay the assignment price in that | |
363 | * case. If it is not compiled in, the compiler should be smart enough | |
364 | * to not do even the assignment. In that case, slab_equal_or_root | |
365 | * will also be a constant. | |
366 | */ | |
becfda68 LA |
367 | if (!memcg_kmem_enabled() && |
368 | !unlikely(s->flags & SLAB_CONSISTENCY_CHECKS)) | |
b9ce5ef4 GC |
369 | return s; |
370 | ||
371 | page = virt_to_head_page(x); | |
372 | cachep = page->slab_cache; | |
373 | if (slab_equal_or_root(cachep, s)) | |
374 | return cachep; | |
375 | ||
376 | pr_err("%s: Wrong slab cache. %s but object is from %s\n", | |
2d16e0fd | 377 | __func__, s->name, cachep->name); |
b9ce5ef4 GC |
378 | WARN_ON_ONCE(1); |
379 | return s; | |
380 | } | |
ca34956b | 381 | |
11c7aec2 JDB |
382 | static inline size_t slab_ksize(const struct kmem_cache *s) |
383 | { | |
384 | #ifndef CONFIG_SLUB | |
385 | return s->object_size; | |
386 | ||
387 | #else /* CONFIG_SLUB */ | |
388 | # ifdef CONFIG_SLUB_DEBUG | |
389 | /* | |
390 | * Debugging requires use of the padding between object | |
391 | * and whatever may come after it. | |
392 | */ | |
393 | if (s->flags & (SLAB_RED_ZONE | SLAB_POISON)) | |
394 | return s->object_size; | |
395 | # endif | |
80a9201a AP |
396 | if (s->flags & SLAB_KASAN) |
397 | return s->object_size; | |
11c7aec2 JDB |
398 | /* |
399 | * If we have the need to store the freelist pointer | |
400 | * back there or track user information then we can | |
401 | * only use the space before that information. | |
402 | */ | |
5f0d5a3a | 403 | if (s->flags & (SLAB_TYPESAFE_BY_RCU | SLAB_STORE_USER)) |
11c7aec2 JDB |
404 | return s->inuse; |
405 | /* | |
406 | * Else we can use all the padding etc for the allocation | |
407 | */ | |
408 | return s->size; | |
409 | #endif | |
410 | } | |
411 | ||
412 | static inline struct kmem_cache *slab_pre_alloc_hook(struct kmem_cache *s, | |
413 | gfp_t flags) | |
414 | { | |
415 | flags &= gfp_allowed_mask; | |
d92a8cfc PZ |
416 | |
417 | fs_reclaim_acquire(flags); | |
418 | fs_reclaim_release(flags); | |
419 | ||
11c7aec2 JDB |
420 | might_sleep_if(gfpflags_allow_blocking(flags)); |
421 | ||
fab9963a | 422 | if (should_failslab(s, flags)) |
11c7aec2 JDB |
423 | return NULL; |
424 | ||
45264778 VD |
425 | if (memcg_kmem_enabled() && |
426 | ((flags & __GFP_ACCOUNT) || (s->flags & SLAB_ACCOUNT))) | |
427 | return memcg_kmem_get_cache(s); | |
428 | ||
429 | return s; | |
11c7aec2 JDB |
430 | } |
431 | ||
432 | static inline void slab_post_alloc_hook(struct kmem_cache *s, gfp_t flags, | |
433 | size_t size, void **p) | |
434 | { | |
435 | size_t i; | |
436 | ||
437 | flags &= gfp_allowed_mask; | |
438 | for (i = 0; i < size; i++) { | |
439 | void *object = p[i]; | |
440 | ||
441 | kmemcheck_slab_alloc(s, flags, object, slab_ksize(s)); | |
442 | kmemleak_alloc_recursive(object, s->object_size, 1, | |
443 | s->flags, flags); | |
505f5dcb | 444 | kasan_slab_alloc(s, object, flags); |
11c7aec2 | 445 | } |
45264778 VD |
446 | |
447 | if (memcg_kmem_enabled()) | |
448 | memcg_kmem_put_cache(s); | |
11c7aec2 JDB |
449 | } |
450 | ||
44c5356f | 451 | #ifndef CONFIG_SLOB |
ca34956b CL |
452 | /* |
453 | * The slab lists for all objects. | |
454 | */ | |
455 | struct kmem_cache_node { | |
456 | spinlock_t list_lock; | |
457 | ||
458 | #ifdef CONFIG_SLAB | |
459 | struct list_head slabs_partial; /* partial list first, better asm code */ | |
460 | struct list_head slabs_full; | |
461 | struct list_head slabs_free; | |
bf00bd34 DR |
462 | unsigned long total_slabs; /* length of all slab lists */ |
463 | unsigned long free_slabs; /* length of free slab list only */ | |
ca34956b CL |
464 | unsigned long free_objects; |
465 | unsigned int free_limit; | |
466 | unsigned int colour_next; /* Per-node cache coloring */ | |
467 | struct array_cache *shared; /* shared per node */ | |
c8522a3a | 468 | struct alien_cache **alien; /* on other nodes */ |
ca34956b CL |
469 | unsigned long next_reap; /* updated without locking */ |
470 | int free_touched; /* updated without locking */ | |
471 | #endif | |
472 | ||
473 | #ifdef CONFIG_SLUB | |
474 | unsigned long nr_partial; | |
475 | struct list_head partial; | |
476 | #ifdef CONFIG_SLUB_DEBUG | |
477 | atomic_long_t nr_slabs; | |
478 | atomic_long_t total_objects; | |
479 | struct list_head full; | |
480 | #endif | |
481 | #endif | |
482 | ||
483 | }; | |
e25839f6 | 484 | |
44c5356f CL |
485 | static inline struct kmem_cache_node *get_node(struct kmem_cache *s, int node) |
486 | { | |
487 | return s->node[node]; | |
488 | } | |
489 | ||
490 | /* | |
491 | * Iterator over all nodes. The body will be executed for each node that has | |
492 | * a kmem_cache_node structure allocated (which is true for all online nodes) | |
493 | */ | |
494 | #define for_each_kmem_cache_node(__s, __node, __n) \ | |
9163582c MP |
495 | for (__node = 0; __node < nr_node_ids; __node++) \ |
496 | if ((__n = get_node(__s, __node))) | |
44c5356f CL |
497 | |
498 | #endif | |
499 | ||
1df3b26f | 500 | void *slab_start(struct seq_file *m, loff_t *pos); |
276a2439 WL |
501 | void *slab_next(struct seq_file *m, void *p, loff_t *pos); |
502 | void slab_stop(struct seq_file *m, void *p); | |
bc2791f8 TH |
503 | void *memcg_slab_start(struct seq_file *m, loff_t *pos); |
504 | void *memcg_slab_next(struct seq_file *m, void *p, loff_t *pos); | |
505 | void memcg_slab_stop(struct seq_file *m, void *p); | |
b047501c | 506 | int memcg_slab_show(struct seq_file *m, void *p); |
5240ab40 | 507 | |
55834c59 AP |
508 | void ___cache_free(struct kmem_cache *cache, void *x, unsigned long addr); |
509 | ||
7c00fce9 TG |
510 | #ifdef CONFIG_SLAB_FREELIST_RANDOM |
511 | int cache_random_seq_create(struct kmem_cache *cachep, unsigned int count, | |
512 | gfp_t gfp); | |
513 | void cache_random_seq_destroy(struct kmem_cache *cachep); | |
514 | #else | |
515 | static inline int cache_random_seq_create(struct kmem_cache *cachep, | |
516 | unsigned int count, gfp_t gfp) | |
517 | { | |
518 | return 0; | |
519 | } | |
520 | static inline void cache_random_seq_destroy(struct kmem_cache *cachep) { } | |
521 | #endif /* CONFIG_SLAB_FREELIST_RANDOM */ | |
522 | ||
5240ab40 | 523 | #endif /* MM_SLAB_H */ |