284 	struct bpf_tramp_image *im;  in __bpf_tramp_image_put_deferred()  local
286 	im = container_of(work, struct bpf_tramp_image, work);  in __bpf_tramp_image_put_deferred()
287 	bpf_image_ksym_del(&im->ksym);  in __bpf_tramp_image_put_deferred()
288 	bpf_jit_free_exec(im->image);  in __bpf_tramp_image_put_deferred()
290 	percpu_ref_exit(&im->pcref);  in __bpf_tramp_image_put_deferred()
291 	kfree_rcu(im, rcu);  in __bpf_tramp_image_put_deferred()
297 	struct bpf_tramp_image *im;  in __bpf_tramp_image_put_rcu()  local
299 	im = container_of(rcu, struct bpf_tramp_image, rcu);  in __bpf_tramp_image_put_rcu()
300 	INIT_WORK(&im->work, __bpf_tramp_image_put_deferred);  in __bpf_tramp_image_put_rcu()
301 	schedule_work(&im->work);  in __bpf_tramp_image_put_rcu()
307 	struct bpf_tramp_image *im;  in __bpf_tramp_image_release()  local
309 	im = container_of(pcref, struct bpf_tramp_image, pcref);  in __bpf_tramp_image_release()
310 	call_rcu_tasks(&im->rcu, __bpf_tramp_image_put_rcu);  in __bpf_tramp_image_release()
316 	struct bpf_tramp_image *im;  in __bpf_tramp_image_put_rcu_tasks()  local
318 	im = container_of(rcu, struct bpf_tramp_image, rcu);  in __bpf_tramp_image_put_rcu_tasks()
319 	if (im->ip_after_call)  in __bpf_tramp_image_put_rcu_tasks()
321 		percpu_ref_kill(&im->pcref);  in __bpf_tramp_image_put_rcu_tasks()
324 		call_rcu_tasks(&im->rcu, __bpf_tramp_image_put_rcu);  in __bpf_tramp_image_put_rcu_tasks()
327 static void bpf_tramp_image_put(struct bpf_tramp_image *im)  in bpf_tramp_image_put()  argument
355 	if (im->ip_after_call) {  in bpf_tramp_image_put()
356 		int err = bpf_arch_text_poke(im->ip_after_call, BPF_MOD_JUMP,  in bpf_tramp_image_put()
357 					     NULL, im->ip_epilogue);  in bpf_tramp_image_put()
360 			call_rcu_tasks(&im->rcu, __bpf_tramp_image_put_rcu_tasks);  in bpf_tramp_image_put()
362 			percpu_ref_kill(&im->pcref);  in bpf_tramp_image_put()
372 	call_rcu_tasks_trace(&im->rcu, __bpf_tramp_image_put_rcu_tasks);  in bpf_tramp_image_put()
377 	struct bpf_tramp_image *im;  in bpf_tramp_image_alloc()  local
382 	im = kzalloc(sizeof(*im), GFP_KERNEL);  in bpf_tramp_image_alloc()
383 	if (!im)  in bpf_tramp_image_alloc()
391 	im->image = image = bpf_jit_alloc_exec(PAGE_SIZE);  in bpf_tramp_image_alloc()
396 	err = percpu_ref_init(&im->pcref, __bpf_tramp_image_release, 0, GFP_KERNEL);  in bpf_tramp_image_alloc()
400 	ksym = &im->ksym;  in bpf_tramp_image_alloc()
404 	return im;  in bpf_tramp_image_alloc()
407 	bpf_jit_free_exec(im->image);  in bpf_tramp_image_alloc()
411 	kfree(im);  in bpf_tramp_image_alloc()
418 	struct bpf_tramp_image *im;  in bpf_trampoline_update()  local
436 	im = bpf_tramp_image_alloc(tr->key, tr->selector);  in bpf_trampoline_update()
437 	if (IS_ERR(im)) {  in bpf_trampoline_update()
438 		err = PTR_ERR(im);  in bpf_trampoline_update()
465 	err = arch_prepare_bpf_trampoline(im, im->image, im->image + PAGE_SIZE,  in bpf_trampoline_update()
471 	set_memory_ro((long)im->image, 1);  in bpf_trampoline_update()
472 	set_memory_x((long)im->image, 1);  in bpf_trampoline_update()
478 		err = modify_fentry(tr, tr->cur_image->image, im->image, lock_direct_mutex);  in bpf_trampoline_update()
481 		err = register_fentry(tr, im->image);  in bpf_trampoline_update()
500 	tr->cur_image = im;  in bpf_trampoline_update()