Add helper macro GET_PAGE_MAX_RETRY_NUM to replace magic number 3.
No functional change intended.
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
mm/memory-failure.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 9c23adceee75..b571aaf987a2 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1446,6 +1446,8 @@ static int __get_hwpoison_page(struct page *page, unsigned long flags)
return 0;
}
+#define GET_PAGE_MAX_RETRY_NUM 3
+
static int get_any_page(struct page *p, unsigned long flags)
{
int ret = 0, pass = 0;
@@ -1460,12 +1462,12 @@ static int get_any_page(struct page *p, unsigned long flags)
if (!ret) {
if (page_count(p)) {
/* We raced with an allocation, retry. */
- if (pass++ < 3)
+ if (pass++ < GET_PAGE_MAX_RETRY_NUM)
goto try_again;
ret = -EBUSY;
} else if (!PageHuge(p) && !is_free_buddy_page(p)) {
/* We raced with put_page, retry. */
- if (pass++ < 3)
+ if (pass++ < GET_PAGE_MAX_RETRY_NUM)
goto try_again;
ret = -EIO;
}
@@ -1491,7 +1493,7 @@ static int get_any_page(struct page *p, unsigned long flags)
* A page we cannot handle. Check whether we can turn
* it into something we can handle.
*/
- if (pass++ < 3) {
+ if (pass++ < GET_PAGE_MAX_RETRY_NUM) {
put_page(p);
shake_page(p);
count_increased = false;
--
2.33.0
