The patch titled
ratelimit: add ratelimit_state_init()
has been added to the -mm tree. Its filename is
ratelimit-add-ratelimit_state_init.patch
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------------------------------------------------------
Subject: ratelimit: add ratelimit_state_init()
From: OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
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: OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/ratelimit.h | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff -puN include/linux/ratelimit.h~ratelimit-add-ratelimit_state_init include/linux/ratelimit.h
--- a/include/linux/ratelimit.h~ratelimit-add-ratelimit_state_init
+++ a/include/linux/ratelimit.h
@@ -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__)
_
Patches currently in -mm which might be from hirofumi@xxxxxxxxxxxxxxxxxx are
origin.patch
linux-next.patch
printk_ratelimited-fix-uninitialized-spinlock.patch
ratelimit-add-ratelimit_state_init.patch
fatfs-ratelimit-corruption-report.patch
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