20  * 16 32 64 96 128 196 256 512 1024 2048 4096
23  * 16 32 64 96 128 196 256 512 1024 2048 4096
57 	6,	/* 128 */
126 static const u16 sizes[NUM_CACHES] = {96, 192, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096};
457  * 64*16 + 64*32 + 64*64 + 64*96 + 64*128 + 64*196 + 64*256 + 32*512 + 16*1024 + 8*2048 + 4*4096
509 int bpf_mem_alloc_init(struct bpf_mem_alloc *ma, int size, bool percpu)  in bpf_mem_alloc_init()  argument
522 	ma->percpu = percpu;  in bpf_mem_alloc_init()
537 		ma->objcg = objcg;  in bpf_mem_alloc_init()
548 		ma->cache = pc;  in bpf_mem_alloc_init()
558 	ma->objcg = objcg;  in bpf_mem_alloc_init()
573 	ma->caches = pcc;  in bpf_mem_alloc_init()
577 int bpf_mem_alloc_percpu_init(struct bpf_mem_alloc *ma, struct obj_cgroup *objcg)  in bpf_mem_alloc_percpu_init()  argument
585 	ma->caches = pcc;  in bpf_mem_alloc_percpu_init()
586 	ma->objcg = objcg;  in bpf_mem_alloc_percpu_init()
587 	ma->percpu = true;  in bpf_mem_alloc_percpu_init()
591 int bpf_mem_alloc_percpu_unit_init(struct bpf_mem_alloc *ma, int size)  in bpf_mem_alloc_percpu_unit_init()  argument
606 	objcg = ma->objcg;  in bpf_mem_alloc_percpu_unit_init()
607 	pcc = ma->caches;  in bpf_mem_alloc_percpu_unit_init()
658 static void check_leaked_objs(struct bpf_mem_alloc *ma)  in check_leaked_objs()  argument
664 	if (ma->cache) {  in check_leaked_objs()
666 			c = per_cpu_ptr(ma->cache, cpu);  in check_leaked_objs()
670 	if (ma->caches) {  in check_leaked_objs()
672 			cc = per_cpu_ptr(ma->caches, cpu);  in check_leaked_objs()
681 static void free_mem_alloc_no_barrier(struct bpf_mem_alloc *ma)  in free_mem_alloc_no_barrier()  argument
683 	check_leaked_objs(ma);  in free_mem_alloc_no_barrier()
684 	free_percpu(ma->cache);  in free_mem_alloc_no_barrier()
685 	free_percpu(ma->caches);  in free_mem_alloc_no_barrier()
686 	ma->cache = NULL;  in free_mem_alloc_no_barrier()
687 	ma->caches = NULL;  in free_mem_alloc_no_barrier()
690 static void free_mem_alloc(struct bpf_mem_alloc *ma)  in free_mem_alloc()  argument
706 	free_mem_alloc_no_barrier(ma);  in free_mem_alloc()
711 	struct bpf_mem_alloc *ma = container_of(work, struct bpf_mem_alloc, work);  in free_mem_alloc_deferred()  local
713 	free_mem_alloc(ma);  in free_mem_alloc_deferred()
714 	kfree(ma);  in free_mem_alloc_deferred()
717 static void destroy_mem_alloc(struct bpf_mem_alloc *ma, int rcu_in_progress)  in destroy_mem_alloc()  argument
725 		free_mem_alloc_no_barrier(ma);  in destroy_mem_alloc()
729 	copy = kmemdup(ma, sizeof(*ma), GFP_KERNEL);  in destroy_mem_alloc()
732 		free_mem_alloc(ma);  in destroy_mem_alloc()
737 	memset(ma, 0, sizeof(*ma));  in destroy_mem_alloc()
742 void bpf_mem_alloc_destroy(struct bpf_mem_alloc *ma)  in bpf_mem_alloc_destroy()  argument
748 	if (ma->cache) {  in bpf_mem_alloc_destroy()
751 			c = per_cpu_ptr(ma->cache, cpu);  in bpf_mem_alloc_destroy()
758 		obj_cgroup_put(ma->objcg);  in bpf_mem_alloc_destroy()
759 		destroy_mem_alloc(ma, rcu_in_progress);  in bpf_mem_alloc_destroy()
761 	if (ma->caches) {  in bpf_mem_alloc_destroy()
764 			cc = per_cpu_ptr(ma->caches, cpu);  in bpf_mem_alloc_destroy()
774 		obj_cgroup_put(ma->objcg);  in bpf_mem_alloc_destroy()
775 		destroy_mem_alloc(ma, rcu_in_progress);  in bpf_mem_alloc_destroy()
889 void notrace *bpf_mem_alloc(struct bpf_mem_alloc *ma, size_t size)  in bpf_mem_alloc()  argument
897 	if (!ma->percpu)  in bpf_mem_alloc()
903 	ret = unit_alloc(this_cpu_ptr(ma->caches)->cache + idx);  in bpf_mem_alloc()
907 void notrace bpf_mem_free(struct bpf_mem_alloc *ma, void *ptr)  in bpf_mem_free()  argument
920 	unit_free(this_cpu_ptr(ma->caches)->cache + idx, ptr);  in bpf_mem_free()
923 void notrace bpf_mem_free_rcu(struct bpf_mem_alloc *ma, void *ptr)  in bpf_mem_free_rcu()  argument
936 	unit_free_rcu(this_cpu_ptr(ma->caches)->cache + idx, ptr);  in bpf_mem_free_rcu()
939 void notrace *bpf_mem_cache_alloc(struct bpf_mem_alloc *ma)  in bpf_mem_cache_alloc()  argument
943 	ret = unit_alloc(this_cpu_ptr(ma->cache));  in bpf_mem_cache_alloc()
947 void notrace bpf_mem_cache_free(struct bpf_mem_alloc *ma, void *ptr)  in bpf_mem_cache_free()  argument
952 	unit_free(this_cpu_ptr(ma->cache), ptr);  in bpf_mem_cache_free()
955 void notrace bpf_mem_cache_free_rcu(struct bpf_mem_alloc *ma, void *ptr)  in bpf_mem_cache_free_rcu()  argument
960 	unit_free_rcu(this_cpu_ptr(ma->cache), ptr);  in bpf_mem_cache_free_rcu()
985 void notrace *bpf_mem_cache_alloc_flags(struct bpf_mem_alloc *ma, gfp_t flags)  in bpf_mem_cache_alloc_flags()  argument
990 	c = this_cpu_ptr(ma->cache);  in bpf_mem_cache_alloc_flags()