From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C8652C43334 for ; Wed, 15 Jun 2022 11:03:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355846AbiFOLDc (ORCPT ); Wed, 15 Jun 2022 07:03:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52570 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349180AbiFOLA2 (ORCPT ); Wed, 15 Jun 2022 07:00:28 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B373527EB; Wed, 15 Jun 2022 04:00:24 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 4B5871F385; Wed, 15 Jun 2022 11:00:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1655290823; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=r4Xgkiz28fr7+QgqidS11r+u0JdfTJrBzbaVks+Q0jM=; b=zg/rOjLLT2fpOGRhWYY2YGBT979qo85Ocm1hqui8j5X4gOs7RjAckvWGBLOY+SV4Mjjo4s D2+xY3C1Bys8xpXIbAMrhKzIrxhHtI/WTJCojuxaOcDPA7jrsknnFuO9qDfbxYjaOB6KMx Qe/BCbHo5XMDXLGBB9/+qLe1+hu36XA= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1655290823; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=r4Xgkiz28fr7+QgqidS11r+u0JdfTJrBzbaVks+Q0jM=; b=PzX0gwI6ZxCo8Mip8nRs3IhgpusPyUyUhWNDs1rXPD1M9Sbwyub346IboU1/K/10EW8vvS uUh1OQYXh7gG9GBQ== Received: from quack3.suse.cz (unknown [10.163.28.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay2.suse.de (Postfix) with ESMTPS id 223792C141; Wed, 15 Jun 2022 11:00:23 +0000 (UTC) Received: by quack3.suse.cz (Postfix, from userid 1000) id B3F52A062E; Wed, 15 Jun 2022 13:00:22 +0200 (CEST) Date: Wed, 15 Jun 2022 13:00:22 +0200 From: Jan Kara To: Linus Torvalds Cc: Thomas Backlund , Jan Kara , Suzuki K Poulose , Greg Kroah-Hartman , Guenter Roeck , Linux Kernel Mailing List , stable , Andrew Morton , Shuah Khan , patches@kernelci.org, lkft-triage@lists.linaro.org, Pavel Machek , Jon Hunter , Florian Fainelli , Sudip Mukherjee , Slade Watkins Subject: Re: [PATCH 5.15 000/251] 5.15.47-rc2 review Message-ID: <20220615110022.yifrsvzxjsz2wky5@quack3.lan> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue 14-06-22 12:00:22, Linus Torvalds wrote: > On Tue, Jun 14, 2022 at 11:51 AM Linus Torvalds > 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 SUSE Labs, CR