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authorMiaohe Lin <linmiaohe@huawei.com>2024-06-12 10:18:33 +0300
committerAndrew Morton <akpm@linux-foundation.org>2024-07-04 05:30:11 +0300
commitb71340ef56a4cd5a5ed7f61a5c268ee346ff0640 (patch)
tree706554c95d94933f2079ae5cd919129f2f2beada /mm/memory-failure.c
parent3a78f77fd1fb82c32cb7971a8a97c5cbc83ab69e (diff)
downloadlinux-b71340ef56a4cd5a5ed7f61a5c268ee346ff0640.tar.xz
mm/memory-failure: fix comment of get_hwpoison_page()
When return value is 0, it could also means the page is free hugetlb page or free buddy page. Fix the corresponding comment. Link: https://lkml.kernel.org/r/20240612071835.157004-12-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Cc: Borislav Petkov (AMD) <bp@alien8.de> Cc: David Hildenbrand <david@redhat.com> Cc: kernel test robot <lkp@intel.com> Cc: Naoya Horiguchi <nao.horiguchi@gmail.com> Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memory-failure.c')
-rw-r--r--mm/memory-failure.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index bb8e79381c1f..475524f79550 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1525,7 +1525,7 @@ 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