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mm/debug-pagealloc.c: use plain __ratelimit() instead of printk_ratelimit()

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printk_ratelimit() should not be used, because it shares ratelimiting
state with all other unrelated printk_ratelimit() callsites.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Akinobu Mita 2011-10-31 17:08:05 -07:00 committed by Linus Torvalds
parent 16fb951237
commit 77311139f3
1 changed files with 3 additions and 1 deletions
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4
mm/debug-pagealloc.c
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@ -2,6 +2,7 @@
#include <linux/mm.h>
#include <linux/page-debug-flags.h>
#include <linux/poison.h>
#include <linux/ratelimit.h>
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");