+ mm-hwpoison-remove-obsolete-comment.patch added to -mm tree

+ mm-hwpoison-remove-obsolete-comment.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm/memory-failure.c: remove obsolete comment
has been added to the -mm tree.  Its filename is
     mm-hwpoison-remove-obsolete-comment.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-hwpoison-remove-obsolete-comment.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-hwpoison-remove-obsolete-comment.patch

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------------------------------------------------------
From: Naoya Horiguchi <naoya.horiguchi@nec.com>
Subject: mm/memory-failure.c: remove obsolete comment

With the introduction of mf_mutex, most of memory error handling process
is mutually exclusive, so the in-line comment about subtlety about
double-checking PageHWPoison is no more correct.  So remove it.

Link: https://lkml.kernel.org/r/20220125025601.3054511-1-naoya.horiguchi@linux.dev
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Suggested-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

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

--- a/mm/memory-failure.c~mm-hwpoison-remove-obsolete-comment
+++ a/mm/memory-failure.c
@@ -2150,12 +2150,6 @@ static int __soft_offline_page(struct pa
 		.gfp_mask = GFP_USER | __GFP_MOVABLE | __GFP_RETRY_MAYFAIL,
 	};
 
-	/*
-	 * Check PageHWPoison again inside page lock because PageHWPoison
-	 * is set by memory_failure() outside page lock. Note that
-	 * memory_failure() also double-checks PageHWPoison inside page lock,
-	 * so there's no race between soft_offline_page() and memory_failure().
-	 */
 	lock_page(page);
 	if (!PageHuge(page))
 		wait_on_page_writeback(page);
_

Patches currently in -mm which might be from naoya.horiguchi@nec.com are

mm-hwpoison-remove-obsolete-comment.patch