1930 	struct ceph_osd_backoff *backoff;  in alloc_backoff()  local
1932 	backoff = kzalloc(sizeof(*backoff), GFP_NOIO);  in alloc_backoff()
1933 	if (!backoff)  in alloc_backoff()
1936 	RB_CLEAR_NODE(&backoff->spg_node);  in alloc_backoff()
1937 	RB_CLEAR_NODE(&backoff->id_node);  in alloc_backoff()
1938 	return backoff;  in alloc_backoff()
1941 static void free_backoff(struct ceph_osd_backoff *backoff)  in free_backoff()  argument
1943 	WARN_ON(!RB_EMPTY_NODE(&backoff->spg_node));  in free_backoff()
1944 	WARN_ON(!RB_EMPTY_NODE(&backoff->id_node));  in free_backoff()
1946 	free_hoid(backoff->begin);  in free_backoff()
1947 	free_hoid(backoff->end);  in free_backoff()
1948 	kfree(backoff);  in free_backoff()
1954 DEFINE_RB_INSDEL_FUNCS2(backoff, struct ceph_osd_backoff, begin, hoid_compare,
1996 			struct ceph_osd_backoff *backoff =  in DEFINE_RB_FUNCS()  local
2000 			erase_backoff(&spg->backoffs, backoff);  in DEFINE_RB_FUNCS()
2001 			erase_backoff_by_id(&osd->o_backoffs_by_id, backoff);  in DEFINE_RB_FUNCS()
2002 			free_backoff(backoff);  in DEFINE_RB_FUNCS()
2037 	struct ceph_osd_backoff *backoff;  in should_plug_request()  local
2045 	backoff = lookup_containing_backoff(&spg->backoffs, &hoid);  in should_plug_request()
2046 	if (!backoff)  in should_plug_request()
2050 	     __func__, req, req->r_tid, osd->o_osd, backoff->spgid.pgid.pool,  in should_plug_request()
2051 	     backoff->spgid.pgid.seed, backoff->spgid.shard, backoff->id);  in should_plug_request()
4375 				const struct ceph_osd_backoff *backoff,  in create_backoff_message()  argument
4386 			hoid_encoding_size(backoff->begin);  in create_backoff_message()
4388 			hoid_encoding_size(backoff->end);  in create_backoff_message()
4397 	encode_spgid(&p, &backoff->spgid);  in create_backoff_message()
4400 	ceph_encode_64(&p, backoff->id);  in create_backoff_message()
4401 	encode_hoid(&p, end, backoff->begin);  in create_backoff_message()
4402 	encode_hoid(&p, end, backoff->end);  in create_backoff_message()
4415 	struct ceph_osd_backoff *backoff;  in handle_backoff_block()  local
4432 	backoff = alloc_backoff();  in handle_backoff_block()
4433 	if (!backoff) {  in handle_backoff_block()
4437 	backoff->spgid = m->spgid; /* struct */  in handle_backoff_block()
4438 	backoff->id = m->id;  in handle_backoff_block()
4439 	backoff->begin = m->begin;  in handle_backoff_block()
4441 	backoff->end = m->end;  in handle_backoff_block()
4444 	insert_backoff(&spg->backoffs, backoff);  in handle_backoff_block()
4445 	insert_backoff_by_id(&osd->o_backoffs_by_id, backoff);  in handle_backoff_block()
4451 	msg = create_backoff_message(backoff, m->map_epoch);  in handle_backoff_block()
4475 	struct ceph_osd_backoff *backoff;  in handle_backoff_unblock()  local
4481 	backoff = lookup_backoff_by_id(&osd->o_backoffs_by_id, m->id);  in handle_backoff_unblock()
4482 	if (!backoff) {  in handle_backoff_unblock()
4489 	if (hoid_compare(backoff->begin, m->begin) &&  in handle_backoff_unblock()
4490 	    hoid_compare(backoff->end, m->end)) {  in handle_backoff_unblock()
4497 	spg = lookup_spg_mapping(&osd->o_backoff_mappings, &backoff->spgid);  in handle_backoff_unblock()
4500 	erase_backoff(&spg->backoffs, backoff);  in handle_backoff_unblock()
4501 	erase_backoff_by_id(&osd->o_backoffs_by_id, backoff);  in handle_backoff_unblock()
4502 	free_backoff(backoff);  in handle_backoff_unblock()