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;
MIME-Version: 1.0
References: <20230529132037.2124527-1-yukuai1@huaweicloud.com> <0a38ddc1-b47e-04e8-dbf5-25afcd13fff4@huaweicloud.com>
In-Reply-To: <0a38ddc1-b47e-04e8-dbf5-25afcd13fff4@huaweicloud.com>
From:   Song Liu <song@kernel.org>
Date:   Thu, 8 Jun 2023 21:44:53 -0700
Message-ID: <CAPhsuW65AFL=vbcubantu=O-6uVVeDHrO73Oun07DqnYHsv8CA@mail.gmail.com>
Subject: Re: [PATCH -next v2 0/6] md: fix that MD_RECOVERY_RUNNING can be
 cleared while sync_thread is still running
To:     Yu Kuai <yukuai1@huaweicloud.com>
Cc:     guoqing.jiang@linux.dev, agk@redhat.com, snitzer@kernel.org,
        dm-devel@redhat.com, linux-kernel@vger.kernel.org,
        linux-raid@vger.kernel.org, yi.zhang@huawei.com,
        yangerkun@huawei.com, "yukuai (C)" <yukuai3@huawei.com>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

On Wed, Jun 7, 2023 at 7:41=E2=80=AFPM Yu Kuai <yukuai1@huaweicloud.com> wr=
ote:
>
> Hi,
>
> =E5=9C=A8 2023/05/29 21:20, Yu Kuai =E5=86=99=E9=81=93:
> > From: Yu Kuai <yukuai3@huawei.com>
> >
> > Changes in v2:
> >   - rebase for the latest md-next
> >
> > Patch 1 revert the commit because it will cause MD_RECOVERY_RUNNING to =
be
> > cleared while sync_thread is still running. The deadlock this patch tri=
es
> > to fix will be fixed by patch 2-5.
> >
> > Patch 6 enhance checking to prevent MD_RECOVERY_RUNNING to be cleared
> > while sync_thread is still running.
>
> Any suggestions on this patchset? I already sent regression test
> for the deadlock problem for both raid10 and raid456.

Sorry for the delay. I will look into this soon.

Thanks,
Song