Commit 8c5fb8ea authored by Akinobu Mita's avatar Akinobu Mita Committed by Linus Torvalds

mm/debug-pagealloc.c: use memchr_inv

Use newly introduced memchr_inv() for page verification.
Signed-off-by: default avatarAkinobu Mita <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 79824820
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/page-debug-flags.h>
#include <linux/poison.h>
......@@ -64,11 +65,8 @@ static void check_poison_mem(unsigned char *mem, size_t bytes)
unsigned char *start;
unsigned char *end;
for (start = mem; start < mem + bytes; start++) {
if (*start != PAGE_POISON)
if (start == mem + bytes)
start = memchr_inv(mem, PAGE_POISON, bytes);
if (!start)
for (end = mem + bytes - 1; end > start; end--) {
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