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Message-Id: <20230717120002.8da3920c4006295bfb5234cb@linux-foundation.org>
Date:   Mon, 17 Jul 2023 12:00:02 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Sidhartha Kumar <sidhartha.kumar@...cle.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        willy@...radead.org, linmiaohe@...wei.com, naoya.horiguchi@....com,
        stable@...r.kernel.org
Subject: Re: [PATCH] mm/memory-failure: fix hardware poison check in
 unpoison_memory()

On Mon, 17 Jul 2023 11:18:12 -0700 Sidhartha Kumar <sidhartha.kumar@...cle.com> wrote:

> It was pointed out[1] that using folio_test_hwpoison() is wrong
> as we need to check the indiviual page that has poison.
> folio_test_hwpoison() only checks the head page so go back to using
> PageHWPoison().

Please describe the user-visible effects of the bug, especially
when proposing a -stable backport.

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