From: Miaohe Lin <linmiaohe@huawei.com>
Date: Tue, 22 Mar 2022 21:44:24 +0000 (-0700)
Subject: mm/memory-failure.c: remove PageSlab check in hwpoison_filter_dev
X-Git-Tag: baikal/aarch64/sdk6.1~4438^2~111
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=8bfacfa90c88a3b9c6be16555248db20009c31d2;p=kernel.git

mm/memory-failure.c: remove PageSlab check in hwpoison_filter_dev

Since commit 836af871a108 ("mm: fix crash when using XFS on loopback"),
page_mapping() can handle the Slab pages.  So remove this unnecessary
PageSlab check and obsolete comment.

Link: https://lkml.kernel.org/r/20220218090118.1105-6-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 79a32be5e7df3..ac3d582d84b2b 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -130,12 +130,6 @@ static int hwpoison_filter_dev(struct page *p)
 	    hwpoison_filter_dev_minor == ~0U)
 		return 0;
 
-	/*
-	 * page_mapping() does not accept slab pages.
-	 */
-	if (PageSlab(p))
-		return -EINVAL;
-
 	mapping = page_mapping(p);
 	if (mapping == NULL || mapping->host == NULL)
 		return -EINVAL;