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Date:   Wed, 15 Jun 2022 23:47:26 +0200
From:   Jan Kara <jack@suse.cz>
To:     Guenter Roeck <linux@roeck-us.net>
Cc:     Jan Kara <jack@suse.cz>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Thomas Backlund <tmb@tmb.nu>,
        Suzuki K Poulose <suzuki.poulose@arm.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        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 Wed 15-06-22 11:00:26, Guenter Roeck wrote:
> On Wed, Jun 15, 2022 at 03:38:45PM +0200, Jan Kara wrote:
> > On Wed 15-06-22 13:00:22, Jan Kara wrote:
> > > 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.
> > 
> > Attached patch boots for me. Guys, who was able to reproduce the failure: Can
> > you please confirm this patch fixes your problem?
> > 
> 
> It does for me.

Thanks for confirmation! I'll send the patch with proper tags etc. and also
push it to Linus if nobody objects.

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