[PATCH 11/13] mm/memory-failure: fix comment of get_hwpoison_page()

From: Miaohe Lin
Date: Fri May 24 2024 - 05:19:22 EST


When return value is 0, it could also means the page is free hugetlb
page or free buddy page. Fix the corresponding comment.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
mm/memory-failure.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index e4252f297d41..705cd0bbb603 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1549,7 +1549,7 @@ static int __get_unpoison_page(struct page *page)
* the given page has PG_hwpoison. So it's never reused for other page
* allocations, and __get_unpoison_page() never races with them.
*
- * Return: 0 on failure,
+ * Return: 0 on failure or free buddy (hugetlb) page,
* 1 on success for in-use pages in a well-defined state,
* -EIO for pages on which we can not handle memory errors,
* -EBUSY when get_hwpoison_page() has raced with page lifecycle
--
2.33.0