[patch 116/227] mm/memory-failure.c: remove PageSlab check in hwpoison_filter_dev

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From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: mm/memory-failure.c: remove PageSlab check in hwpoison_filter_dev

Since commit 03e5ac2fc3bf ("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@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Acked-by: Naoya Horiguchi <naoya.horiguchi@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/memory-failure.c |    6 ------
 1 file changed, 6 deletions(-)

--- a/mm/memory-failure.c~mm-memory-failurec-remove-pageslab-check-in-hwpoison_filter_dev
+++ a/mm/memory-failure.c
@@ -130,12 +130,6 @@ static int hwpoison_filter_dev(struct pa
 	    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;
_




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