linux-kernel - Re: [PATCH] mm, soft-offline: convert parameter to pfn

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Message-ID: <20191017080315.GA31827@linux>
Date:   Thu, 17 Oct 2019 10:03:21 +0200
From:   Oscar Salvador <osalvador@...e.de>
To:     Naoya Horiguchi <n-horiguchi@...jp.nec.com>
Cc:     David Hildenbrand <david@...hat.com>,
        Naoya Horiguchi <nao.horiguchi@...il.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        Michal Hocko <mhocko@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] mm, soft-offline: convert parameter to pfn

On Thu, Oct 17, 2019 at 07:50:18AM +0000, Naoya Horiguchi wrote:
> Actually I guess that !pfn_valid() never happens when called from
> madvise_inject_error(), because madvise_inject_error() gets pfn via
> get_user_pages_fast() which only returns valid page for valid pfn.
> 
> And we plan to remove MF_COUNT_INCREASED by Oscar's re-design work,
> so I start feeling that this patch should come on top of his tree.

Hi Naoya,

I am pretty much done with my testing.
If you feel like, I can take the patch and add it on top of [1]
, then I will do some more testing and, if nothing pops up, I will
send it upstream.

[1] https://github.com/leberus/linux/tree/hwpoison-v2

> 
> Thanks,
> Naoya Horiguchi

-- 
Oscar Salvador
SUSE L3