Lines Matching +full:re +full:- +full:initialization

1 // SPDX-License-Identifier: GPL-2.0-only
3  * ratelimit.c - Do something with rate limit.
7  * 2008-05-01 rewrite the function and use a ratelimit_state data struct as
16  * __ratelimit - rate limiting
20  * This enforces a rate limit: not more than @rs->burst callbacks
21  * in every @rs->interval
33 	int interval = READ_ONCE(rs->interval);  in ___ratelimit()
34 	int burst = READ_ONCE(rs->burst);  in ___ratelimit()
39 	 * Zero interval says never limit, otherwise, non-positive burst  in ___ratelimit()
45 		if (!(READ_ONCE(rs->flags) & RATELIMIT_INITIALIZED) || (!interval && !burst) ||  in ___ratelimit()
46 		    !raw_spin_trylock_irqsave(&rs->lock, flags))  in ___ratelimit()
49 		/* Force re-initialization once re-enabled. */  in ___ratelimit()
50 		rs->flags &= ~RATELIMIT_INITIALIZED;  in ___ratelimit()
60 	if (!raw_spin_trylock_irqsave(&rs->lock, flags)) {  in ___ratelimit()
61 		if (READ_ONCE(rs->flags) & RATELIMIT_INITIALIZED &&  in ___ratelimit()
62 		    atomic_read(&rs->rs_n_left) > 0 && atomic_dec_return(&rs->rs_n_left) >= 0)  in ___ratelimit()
67 	if (!(rs->flags & RATELIMIT_INITIALIZED)) {  in ___ratelimit()
68 		rs->begin = jiffies;  in ___ratelimit()
69 		rs->flags |= RATELIMIT_INITIALIZED;  in ___ratelimit()
70 		atomic_set(&rs->rs_n_left, rs->burst);  in ___ratelimit()
73 	if (time_is_before_jiffies(rs->begin + interval)) {  in ___ratelimit()
80 		atomic_set(&rs->rs_n_left, rs->burst);  in ___ratelimit()
81 		rs->begin = jiffies;  in ___ratelimit()
83 		if (!(rs->flags & RATELIMIT_MSG_ON_RELEASE)) {  in ___ratelimit()
93 	if (atomic_read(&rs->rs_n_left) > 0 && atomic_dec_return(&rs->rs_n_left) >= 0)  in ___ratelimit()
97 	raw_spin_unlock_irqrestore(&rs->lock, flags);  in ___ratelimit()