1723 	struct ceph_osd_backoff *backoff;  in alloc_backoff()  local
1725 	backoff = kzalloc(sizeof(*backoff), GFP_NOIO);  in alloc_backoff()
1726 	if (!backoff)  in alloc_backoff()
1729 	RB_CLEAR_NODE(&backoff->spg_node);  in alloc_backoff()
1730 	RB_CLEAR_NODE(&backoff->id_node);  in alloc_backoff()
1731 	return backoff;  in alloc_backoff()
1734 static void free_backoff(struct ceph_osd_backoff *backoff)  in free_backoff()  argument
1736 	WARN_ON(!RB_EMPTY_NODE(&backoff->spg_node));  in free_backoff()
1737 	WARN_ON(!RB_EMPTY_NODE(&backoff->id_node));  in free_backoff()
1739 	free_hoid(backoff->begin);  in free_backoff()
1740 	free_hoid(backoff->end);  in free_backoff()
1741 	kfree(backoff);  in free_backoff()
1747 DEFINE_RB_INSDEL_FUNCS2(backoff, struct ceph_osd_backoff, begin, hoid_compare,
1789 			struct ceph_osd_backoff *backoff =  in DEFINE_RB_FUNCS()  local
1793 			erase_backoff(&spg->backoffs, backoff);  in DEFINE_RB_FUNCS()
1794 			erase_backoff_by_id(&osd->o_backoffs_by_id, backoff);  in DEFINE_RB_FUNCS()
1795 			free_backoff(backoff);  in DEFINE_RB_FUNCS()
1830 	struct ceph_osd_backoff *backoff;  in should_plug_request()  local
1838 	backoff = lookup_containing_backoff(&spg->backoffs, &hoid);  in should_plug_request()
1839 	if (!backoff)  in should_plug_request()
1843 	     __func__, req, req->r_tid, osd->o_osd, backoff->spgid.pgid.pool,  in should_plug_request()
1844 	     backoff->spgid.pgid.seed, backoff->spgid.shard, backoff->id);  in should_plug_request()
4067 				const struct ceph_osd_backoff *backoff,  in create_backoff_message()  argument
4078 			hoid_encoding_size(backoff->begin);  in create_backoff_message()
4080 			hoid_encoding_size(backoff->end);  in create_backoff_message()
4089 	encode_spgid(&p, &backoff->spgid);  in create_backoff_message()
4092 	ceph_encode_64(&p, backoff->id);  in create_backoff_message()
4093 	encode_hoid(&p, end, backoff->begin);  in create_backoff_message()
4094 	encode_hoid(&p, end, backoff->end);  in create_backoff_message()
4107 	struct ceph_osd_backoff *backoff;  in handle_backoff_block()  local
4124 	backoff = alloc_backoff();  in handle_backoff_block()
4125 	if (!backoff) {  in handle_backoff_block()
4129 	backoff->spgid = m->spgid; /* struct */  in handle_backoff_block()
4130 	backoff->id = m->id;  in handle_backoff_block()
4131 	backoff->begin = m->begin;  in handle_backoff_block()
4133 	backoff->end = m->end;  in handle_backoff_block()
4136 	insert_backoff(&spg->backoffs, backoff);  in handle_backoff_block()
4137 	insert_backoff_by_id(&osd->o_backoffs_by_id, backoff);  in handle_backoff_block()
4143 	msg = create_backoff_message(backoff, m->map_epoch);  in handle_backoff_block()
4167 	struct ceph_osd_backoff *backoff;  in handle_backoff_unblock()  local
4173 	backoff = lookup_backoff_by_id(&osd->o_backoffs_by_id, m->id);  in handle_backoff_unblock()
4174 	if (!backoff) {  in handle_backoff_unblock()
4181 	if (hoid_compare(backoff->begin, m->begin) &&  in handle_backoff_unblock()
4182 	    hoid_compare(backoff->end, m->end)) {  in handle_backoff_unblock()
4189 	spg = lookup_spg_mapping(&osd->o_backoff_mappings, &backoff->spgid);  in handle_backoff_unblock()
4192 	erase_backoff(&spg->backoffs, backoff);  in handle_backoff_unblock()
4193 	erase_backoff_by_id(&osd->o_backoffs_by_id, backoff);  in handle_backoff_unblock()
4194 	free_backoff(backoff);  in handle_backoff_unblock()