47 struct seqlock {  struct
51 typedef struct seqlock seqlock_t;  argument
115 seqlock_init(struct seqlock *seqlock)  in seqlock_init()  argument
122 	mtx_init(&seqlock->seql_lock, "seqlock", NULL, MTX_DEF|MTX_NOWITNESS);  in seqlock_init()
123 	seqcount_init(&seqlock->seql_count);  in seqlock_init()
127 lkpi_write_seqlock(struct seqlock *seqlock, const bool irqsave)  in lkpi_write_seqlock()  argument
129 	mtx_lock(&seqlock->seql_lock);  in lkpi_write_seqlock()
132 	write_seqcount_begin(&seqlock->seql_count);  in lkpi_write_seqlock()
136 write_seqlock(struct seqlock *seqlock)  in write_seqlock()  argument
138 	lkpi_write_seqlock(seqlock, false);  in write_seqlock()
142 lkpi_write_sequnlock(struct seqlock *seqlock, const bool irqsave)  in lkpi_write_sequnlock()  argument
144 	write_seqcount_end(&seqlock->seql_count);  in lkpi_write_sequnlock()
147 	mtx_unlock(&seqlock->seql_lock);  in lkpi_write_sequnlock()
151 write_sequnlock(struct seqlock *seqlock)  in write_sequnlock()  argument
153 	lkpi_write_sequnlock(seqlock, false);  in write_sequnlock()
163 #define	write_seqlock_irqsave(seqlock, flags)	do {	\  argument
165 	lkpi_write_seqlock(seqlock, true);		\
169 write_sequnlock_irqrestore(struct seqlock *seqlock,  in write_sequnlock_irqrestore()  argument
172 	lkpi_write_sequnlock(seqlock, true);  in write_sequnlock_irqrestore()
176 read_seqbegin(const struct seqlock *seqlock)  in read_seqbegin()  argument
178 	return (read_seqcount_begin(&seqlock->seql_count));  in read_seqbegin()
181 #define	read_seqretry(seqlock, gen)	\  argument
182 	read_seqcount_retry(&(seqlock)->seql_count, gen)