From 5730c7c89d4b8ee1d61d5035689ab43218ea5eca Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Thu, 25 Aug 2011 09:47:05 +1000 Subject: [PATCH] printk_ratelimit() should not be used, because it shares ratelimiting state with all other unrelated printk_ratelimit() callsites. Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton --- mm/debug-pagealloc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mm/debug-pagealloc.c b/mm/debug-pagealloc.c index a1e3324de2b5..a4b6d707a31f 100644 --- a/mm/debug-pagealloc.c +++ b/mm/debug-pagealloc.c @@ -2,6 +2,7 @@ #include #include #include +#include static inline void set_page_poison(struct page *page) { @@ -59,6 +60,7 @@ static bool single_bit_flip(unsigned char a, unsigned char b) static void check_poison_mem(unsigned char *mem, size_t bytes) { + static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 10); unsigned char *start; unsigned char *end; @@ -74,7 +76,7 @@ static void check_poison_mem(unsigned char *mem, size_t bytes) break; } - if (!printk_ratelimit()) + if (!__ratelimit(&ratelimit)) return; else if (start == end && single_bit_flip(*start, PAGE_POISON)) printk(KERN_ERR "pagealloc: single bit error\n"); -- 2.39.5