From: Dave Young <hidave.darkstar@gmail.com>

Add WARN_ON_SECS macro for some serious cases which need to repeat the
warnings, but with some ratelimiting.

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/asm-generic/bug.h |    9 +++++++++
 1 file changed, 9 insertions(+)

diff -puN include/asm-generic/bug.h~add-warn_on_secs-macro include/asm-generic/bug.h
--- a/include/asm-generic/bug.h~add-warn_on_secs-macro
+++ a/include/asm-generic/bug.h
@@ -2,6 +2,7 @@
 #define _ASM_GENERIC_BUG_H
 
 #include <linux/compiler.h>
+#include <linux/param.h>
 
 #ifdef CONFIG_BUG
 
@@ -75,6 +76,14 @@ extern void warn_on_slowpath(const char 
 	unlikely(__ret_warn_once);				\
 })
 
+#define WARN_ON_SECS(condition, secs) ({			\
+	int __ret_warn_on = !!(condition);			\
+	if (unlikely(__ret_warn_on))				\
+		if (__ratelimit(secs * HZ, 1))			\
+			WARN_ON(1);				\
+	unlikely(__ret_warn_on);				\
+})
+
 #ifdef CONFIG_SMP
 # define WARN_ON_SMP(x)			WARN_ON(x)
 #else
_