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@@ -7,15 +7,12 @@
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* parameter. Now every user can use their own standalone ratelimit_state.
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*
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* This file is released under the GPLv2.
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- *
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*/
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#include <linux/kernel.h>
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#include <linux/jiffies.h>
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#include <linux/module.h>
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-static DEFINE_SPINLOCK(ratelimit_lock);
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-
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/*
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* __ratelimit - rate limiting
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* @rs: ratelimit_state data
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@@ -26,11 +23,12 @@ static DEFINE_SPINLOCK(ratelimit_lock);
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int __ratelimit(struct ratelimit_state *rs)
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{
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unsigned long flags;
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+ int ret;
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if (!rs->interval)
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return 1;
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- spin_lock_irqsave(&ratelimit_lock, flags);
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+ spin_lock_irqsave(&rs->lock, flags);
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if (!rs->begin)
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rs->begin = jiffies;
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@@ -38,20 +36,19 @@ int __ratelimit(struct ratelimit_state *rs)
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if (rs->missed)
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printk(KERN_WARNING "%s: %d callbacks suppressed\n",
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__func__, rs->missed);
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- rs->begin = 0;
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+ rs->begin = 0;
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rs->printed = 0;
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- rs->missed = 0;
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+ rs->missed = 0;
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}
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- if (rs->burst && rs->burst > rs->printed)
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- goto print;
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-
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- rs->missed++;
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- spin_unlock_irqrestore(&ratelimit_lock, flags);
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- return 0;
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+ if (rs->burst && rs->burst > rs->printed) {
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+ rs->printed++;
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+ ret = 1;
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+ } else {
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+ rs->missed++;
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+ ret = 0;
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+ }
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+ spin_unlock_irqrestore(&rs->lock, flags);
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-print:
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- rs->printed++;
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- spin_unlock_irqrestore(&ratelimit_lock, flags);
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- return 1;
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+ return ret;
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}
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EXPORT_SYMBOL(__ratelimit);
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