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Commit f40c396a authored by OGAWA Hirofumi's avatar OGAWA Hirofumi Committed by Linus Torvalds
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ratelimit: add ratelimit_state_init() 



For now, all users of ratelimit_state allocates it statically, so
DEFINE_RATELIMIT_STATE() is enough.  But, I want to use ratelimit_state
for fs, i.e.  per super_block to suppress too many error reports.

So, this adds ratelimit_state_init() to initialize ratelimite_state
which is dynamically allocated, instead of opencoding.

Signed-off-by: default avatarOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d8521fcc

include/linux/ratelimit.h

+12 −1
Original line number Diff line number Diff line
@@ -2,7 +2,7 @@ 
#define _LINUX_RATELIMIT_H



#include <linux/param.h>

#include <linux/spinlock_types.h>

#include <linux/spinlock.h>



#define DEFAULT_RATELIMIT_INTERVAL	(5 * HZ)

#define DEFAULT_RATELIMIT_BURST		10
@@ -25,6 +25,17 @@ struct ratelimit_state { 
		.burst		= burst_init,				\

	}



static inline void ratelimit_state_init(struct ratelimit_state *rs,

					int interval, int burst)

{

	spin_lock_init(&rs->lock);

	rs->interval = interval;

	rs->burst = burst;

	rs->printed = 0;

	rs->missed = 0;

	rs->begin = 0;

}



extern int ___ratelimit(struct ratelimit_state *rs, const char *func);

#define __ratelimit(state) ___ratelimit(state, __func__)