226 int register_shrinker(struct shrinker *shrinker)  in register_shrinker()  argument
228 	size_t size = sizeof(*shrinker->nr_deferred);  in register_shrinker()
236 		shrinker->flags &= ~SHRINKER_NUMA_AWARE;  in register_shrinker()
238 	if (shrinker->flags & SHRINKER_NUMA_AWARE)  in register_shrinker()
241 	shrinker->nr_deferred = kzalloc(size, GFP_KERNEL);  in register_shrinker()
242 	if (!shrinker->nr_deferred)  in register_shrinker()
246 	list_add_tail(&shrinker->list, &shrinker_list);  in register_shrinker()
255 void unregister_shrinker(struct shrinker *shrinker)  in unregister_shrinker()  argument
258 	list_del(&shrinker->list);  in unregister_shrinker()
260 	kfree(shrinker->nr_deferred);  in unregister_shrinker()
267 				    struct shrinker *shrinker,  in do_shrink_slab()  argument
278 	long batch_size = shrinker->batch ? shrinker->batch  in do_shrink_slab()
281 	freeable = shrinker->count_objects(shrinker, shrinkctl);  in do_shrink_slab()
290 	nr = atomic_long_xchg(&shrinker->nr_deferred[nid], 0);  in do_shrink_slab()
293 	delta = (4 * nr_scanned) / shrinker->seeks;  in do_shrink_slab()
299 		       shrinker->scan_objects, total_scan);  in do_shrink_slab()
326 	trace_mm_shrink_slab_start(shrinker, shrinkctl, nr,  in do_shrink_slab()
351 		ret = shrinker->scan_objects(shrinker, shrinkctl);  in do_shrink_slab()
369 						&shrinker->nr_deferred[nid]);  in do_shrink_slab()
371 		new_nr = atomic_long_read(&shrinker->nr_deferred[nid]);  in do_shrink_slab()
373 	trace_mm_shrink_slab_end(shrinker, nid, freed, nr, new_nr, total_scan);  in do_shrink_slab()
411 	struct shrinker *shrinker;  in shrink_slab()  local
431 	list_for_each_entry(shrinker, &shrinker_list, list) {  in shrink_slab()
438 		if (memcg && !(shrinker->flags & SHRINKER_MEMCG_AWARE))  in shrink_slab()
441 		if (!(shrinker->flags & SHRINKER_NUMA_AWARE))  in shrink_slab()
444 		freed += do_shrink_slab(&sc, shrinker, nr_scanned, nr_eligible);  in shrink_slab()