Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Sun, 2 Apr 2023 20:37:23 +0700
From:   Bagas Sanjaya <bagasdotme@gmail.com>
To:     Rongwei Wang <rongwei.wang@linux.alibaba.com>,
        akpm@linux-foundation.org
Cc:     linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        linux-stable@vger.kernel.org
Subject: Re: [PATCH] mm/swap: fix swap_info_struct race between swapoff and
 get_swap_pages()
Message-ID: <ZCmFExoOsho9pt+Q@debian.me>
References: <20230401221920.57986-1-rongwei.wang@linux.alibaba.com>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha512;
        protocol="application/pgp-signature"; boundary="kZSKbbifSvmxXjNz"
Content-Disposition: inline
In-Reply-To: <20230401221920.57986-1-rongwei.wang@linux.alibaba.com>
Precedence: bulk


--kZSKbbifSvmxXjNz
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Sun, Apr 02, 2023 at 06:19:20AM +0800, Rongwei Wang wrote:
> Without this modification, a core will wait (mostly)
"Currently, a core will ..."

> But, a worse consequence, panic also can be caused by
"However, in the worst case, ..."

> In this patch, we lock p->lock before calling
"Lock p->lock before calling ..."

> We also find this problem exists in stable 5.10.

So, you claim that 5.15.y and 6.1.y aren't affected, right?

Also, Cc: stable@vger.kernel.org on the SoB area (as pointed by kernel
test robot [1].

Thanks.

[1]: https://lore.kernel.org/stable/ZCiuGEkyk%2F1Afisk@ec83ac1404bb/
=20
--=20
An old man doll... just what I always wanted! - Clara

--kZSKbbifSvmxXjNz
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----

iHUEABYKAB0WIQSSYQ6Cy7oyFNCHrUH2uYlJVVFOowUCZCmFEwAKCRD2uYlJVVFO
o7N9AQD6KAL9B/rP0BIGjyYtOvCZvnVm5e3JKQg+Aoc/W8gKbAD8CecN3SdI0E2k
n1uesdLFbR0vE9W8lDWjeZLr3z0cnwU=
=P7MJ
-----END PGP SIGNATURE-----

--kZSKbbifSvmxXjNz--