Messages in this thread Patch in this message | | | Date | Mon, 10 Mar 2008 14:34:37 +0800 | From | Dave Young <> | Subject | [PATCH] [2/3] add WARN_ON_SECS macro |
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Add WARN_ON_SECS macro for some serious case which need repeat the warnings, but with some ratelimit.
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
--- include/asm-generic/bug.h | 8 ++++++++ 1 file changed, 8 insertions(+)
diff -upr linux/include/asm-generic/bug.h linux.new/include/asm-generic/bug.h --- linux/include/asm-generic/bug.h 2008-03-10 13:27:03.000000000 +0800 +++ linux.new/include/asm-generic/bug.h 2008-03-10 13:27:14.000000000 +0800 @@ -3,6 +3,7 @@ #include <linux/compiler.h> + #ifdef CONFIG_BUG #ifdef CONFIG_GENERIC_BUG @@ -75,6 +76,13 @@ 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(condition); \ +}) + #ifdef CONFIG_SMP # define WARN_ON_SMP(x) WARN_ON(x) #else
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