Lines Matching full:latch

638  * Latch sequence counters (seqcount_latch_t)
666  * raw_read_seqcount_latch() - pick even/odd latch data copy
699  * raw_write_seqcount_latch() - redirect latch readers to even/odd copy
702  * The latch technique is a multiversion concurrency control method that allows
709  * latch allows the same for non-atomic updates. The trade-off is doubling the
726  *	void latch_modify(struct latch_struct *latch, ...)
729  *		latch->seq.sequence++;
732  *		modify(latch->data[0], ...);
735  *		latch->seq.sequence++;
738  *		modify(latch->data[1], ...);
743  *	struct entry *latch_query(struct latch_struct *latch, ...)
749  *			seq = raw_read_seqcount_latch(&latch->seq);
752  *			entry = data_query(latch->data[idx], ...);
755  *		} while (read_seqcount_latch_retry(&latch->seq, seq));