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Message-ID: <CAM9Jb+hBeZO=y0=pKUhT6G=qF8-mcZU86wY_A6N7-cT5tJ1wmw@mail.gmail.com>
Date:   Mon, 31 Aug 2020 11:45:20 +0200
From:   Pankaj Gupta <pankaj.gupta.linux@...il.com>
To:     Muchun Song <songmuchun@...edance.com>
Cc:     naoya.horiguchi@....com, Andrew Morton <akpm@...ux-foundation.org>,
        Linux MM <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm/memory-failure: Fix return wrong value when isolate
 page fail

> When we isolate page fail, we should not return 0, because we do not
> set page HWPoison on any page.
>
> Signed-off-by: Muchun Song <songmuchun@...edance.com>
> ---
>  mm/memory-failure.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/mm/memory-failure.c b/mm/memory-failure.c
> index 696505f56910..4eb3c42ffe35 100644
> --- a/mm/memory-failure.c
> +++ b/mm/memory-failure.c
> @@ -1850,6 +1850,7 @@ static int __soft_offline_page(struct page *page)
>         } else {
>                 pr_info("soft offline: %#lx: %s isolation failed: %d, page count %d, type %lx (%pGp)\n",
>                         pfn, msg_page[huge], ret, page_count(page), page->flags, &page->flags);
> +               ret = -EBUSY;
>         }
>         return ret;
>  }
> --

Acked-by: Pankaj Gupta <pankaj.gupta.linux@...il.com>
> 2.11.0
>
>

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