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Commit 77311139 authored by Akinobu Mita's avatar Akinobu Mita Committed by Linus Torvalds
Browse files

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



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

Signed-off-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 16fb9512

mm/debug-pagealloc.c

+3 −1
Original line number Diff line number Diff line
@@ -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");