245 		int err = bpf_arch_text_poke(im->ip_after_call, BPF_MOD_JUMP,  in bpf_tramp_image_put()  local
247 		WARN_ON(err);  in bpf_tramp_image_put()
269 	int err = -ENOMEM;  in bpf_tramp_image_alloc()  local
275 	err = bpf_jit_charge_modmem(1);  in bpf_tramp_image_alloc()
276 	if (err)  in bpf_tramp_image_alloc()
279 	err = -ENOMEM;  in bpf_tramp_image_alloc()
284 	err = percpu_ref_init(&im->pcref, __bpf_tramp_image_release, 0, GFP_KERNEL);  in bpf_tramp_image_alloc()
285 	if (err)  in bpf_tramp_image_alloc()
301 	return ERR_PTR(err);  in bpf_tramp_image_alloc()
309 	int err, total;  in bpf_trampoline_update()  local
316 		err = unregister_fentry(tr, tr->cur_image->image);  in bpf_trampoline_update()
325 		err = PTR_ERR(im);  in bpf_trampoline_update()
333 	err = arch_prepare_bpf_trampoline(im, im->image, im->image + PAGE_SIZE,  in bpf_trampoline_update()
336 	if (err < 0)  in bpf_trampoline_update()
343 		err = modify_fentry(tr, tr->cur_image->image, im->image);  in bpf_trampoline_update()
346 		err = register_fentry(tr, im->image);  in bpf_trampoline_update()
347 	if (err)  in bpf_trampoline_update()
355 	return err;  in bpf_trampoline_update()
383 	int err = 0;  in bpf_trampoline_link_prog()  local
392 		err = -EBUSY;  in bpf_trampoline_link_prog()
402 			err = -EBUSY;  in bpf_trampoline_link_prog()
406 		err = bpf_arch_text_poke(tr->func.addr, BPF_MOD_JUMP, NULL,  in bpf_trampoline_link_prog()
411 		err = -E2BIG;  in bpf_trampoline_link_prog()
416 		err = -EBUSY;  in bpf_trampoline_link_prog()
421 	err = bpf_trampoline_update(tr);  in bpf_trampoline_link_prog()
422 	if (err) {  in bpf_trampoline_link_prog()
428 	return err;  in bpf_trampoline_link_prog()
435 	int err;  in bpf_trampoline_unlink_prog()  local
441 		err = bpf_arch_text_poke(tr->func.addr, BPF_MOD_JUMP,  in bpf_trampoline_unlink_prog()
448 	err = bpf_trampoline_update(tr);  in bpf_trampoline_unlink_prog()
451 	return err;  in bpf_trampoline_unlink_prog()