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Date:   Wed, 15 Jun 2022 13:00:22 +0200
From:   Jan Kara <jack@suse.cz>
To:     Linus Torvalds <torvalds@linux-foundation.org>
Cc:     Thomas Backlund <tmb@tmb.nu>, Jan Kara <jack@suse.cz>,
        Suzuki K Poulose <suzuki.poulose@arm.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Guenter Roeck <linux@roeck-us.net>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        stable <stable@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Shuah Khan <shuah@kernel.org>, patches@kernelci.org,
        lkft-triage@lists.linaro.org, Pavel Machek <pavel@denx.de>,
        Jon Hunter <jonathanh@nvidia.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Sudip Mukherjee <sudipm.mukherjee@gmail.com>,
        Slade Watkins <slade@sladewatkins.com>
Subject: Re: [PATCH 5.15 000/251] 5.15.47-rc2 review
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On Tue 14-06-22 12:00:22, Linus Torvalds wrote:
> On Tue, Jun 14, 2022 at 11:51 AM Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
> >
> > Or just make sure that noop_backing_dev_info is fully initialized
> > before it's used.
> 
> I don't see any real reason why that
> 
>     err = bdi_init(&noop_backing_dev_info);
> 
> couldn't just be done very early. Maybe as the first call in
> driver_init(), before the whole devtmpfs_init() etc.

I've checked the dependencies and cgroups (which are the only non-trivial
dependency besides per-CPU infrastructure) are initialized early enough so
it should work fine. So let's try that.

								Honza
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR