From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Tejun Heo <tj@kernel.org>
Cc: Sasha Levin <sashal@kernel.org>,
stable@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, cgroups@vger.kernel.org,
kernel-team@fb.com, Li Zefan <lizefan@huawei.com>,
Johannes Weiner <hannes@cmpxchg.org>, Jan Kara <jack@suse.cz>,
Konstantin Khlebnikov <khlebnikov@yandex-team.ru>,
Dennis Zhou <dennis@kernel.org>, Michal Hocko <mhocko@kernel.org>
Subject: Re: [PATCH block/for-linus] cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead
Date: Mon, 11 Nov 2019 17:34:37 +0100 [thread overview]
Message-ID: <20191111163437.GC1017642@kroah.com> (raw)
In-Reply-To: <20191111161816.GA4163745@devbig004.ftw2.facebook.com>
On Mon, Nov 11, 2019 at 08:18:16AM -0800, Tejun Heo wrote:
> Hello, Michal.
>
> On Mon, Nov 11, 2019 at 02:15:44PM +0100, Michal Hocko wrote:
> > > Signed-off-by: Tejun Heo <tj@kernel.org>
> > > Cc: Dennis Zhou <dennis@kernel.org>
> > > Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
> > > Fixes: e8a7abf5a5bd ("writeback: disassociate inodes from dying bdi_writebacks")
> >
> > Is this a stable material?
>
> c3aab9a0bd91 ("mm/filemap.c: don't initiate writeback if mapping has
> no dirty pages") likely addresses larger part of the problem, but yeah
> it prolly makes sense to backport both for -stable.
>
> Greg, Sasha, can you pick the following two commits for -stable?
>
> * c3aab9a0bd91 ("mm/filemap.c: don't initiate writeback if mapping has
> no dirty pages")
>
> * 65de03e25138 ("cgroup,writeback: don't switch wbs immediately on
> dead wbs if the memcg is dead")
>
> Both are fixes for e8a7abf5a5bd ("writeback: disassociate inodes from
> dying bdi_writebacks") - v4.2+.
Now queued up, thanks.
greg k-h
prev parent reply other threads:[~2019-11-11 16:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-08 20:18 [PATCH block/for-linus] cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead Tejun Heo
2019-11-08 20:33 ` Dennis Zhou
2019-11-08 20:37 ` Jens Axboe
2019-11-11 13:15 ` Michal Hocko
2019-11-11 16:18 ` Tejun Heo
2019-11-11 16:34 ` Greg Kroah-Hartman [this message]
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