885 	unsigned long head_id;  in desc_reserve()  local
888 	head_id = atomic_long_read(&desc_ring->head_id); /* LMM(desc_reserve:A) */  in desc_reserve()
891 		id = DESC_ID(head_id + 1);  in desc_reserve()
969 	} while (!atomic_long_try_cmpxchg(&desc_ring->head_id, &head_id,  in desc_reserve()
1285 	id = atomic_long_read(&desc_ring->head_id);  in desc_reopen_last()
1749 	unsigned long head_id;  in prb_commit()  local
1758 	head_id = atomic_long_read(&desc_ring->head_id); /* LMM(prb_commit:A) */  in prb_commit()
1759 	if (head_id != e->id)  in prb_commit()
2011 	unsigned long head_id;  in prb_next_reserve_seq()  local
2047 	head_id = atomic_long_read(&desc_ring->head_id); /* LMM(prb_next_reserve_seq:A) */  in prb_next_reserve_seq()
2068 			if (head_id == DESC0_ID(desc_ring->count_bits))  in prb_next_reserve_seq()
2084 	diff = head_id - last_finalized_id;  in prb_next_reserve_seq()
2315 	atomic_long_set(&rb->desc_ring.head_id, DESC0_ID(descbits));  in prb_init()