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ipoib: Make ipoib_warn ratelimited

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In certain cases it's possible to be flooded by warning messages. To
cope with such situations make the ipoib_warn macro be ratelimited.
To prevent accidental limiting of legitimate, bursty messages make
the limit fairly liberal by allowing up to 100 messages in 10 seconds.

Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
kernel@kyup.com 2016-08-08 17:14:22 +03:00 committed by Doug Ledford
parent fb6375d7e6
commit 32f7451d1c
1 changed files with 7 additions and 1 deletions
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8
drivers/infiniband/ulp/ipoib/ipoib.h
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@ -771,7 +771,13 @@ static inline void ipoib_unregister_debugfs(void) { }
#define ipoib_printk(level, priv, format, arg...) \
printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
#define ipoib_warn(priv, format, arg...) \
ipoib_printk(KERN_WARNING, priv, format , ## arg)
do { \
static DEFINE_RATELIMIT_STATE(_rs, \
10 * HZ /*10 seconds */, \
100); \
if (__ratelimit(&_rs)) \
ipoib_printk(KERN_WARNING, priv, format , ## arg);\
} while (0)
extern int ipoib_sendq_size;
extern int ipoib_recvq_size;