From patchwork Fri Nov 13 06:55:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chengguang Xu X-Patchwork-Id: 11902601 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 32C9F697 for ; Fri, 13 Nov 2020 06:57:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D0A2322201 for ; Fri, 13 Nov 2020 06:57:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mykernel.net header.i=cgxu519@mykernel.net header.b="ShkQYaId" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726270AbgKMG5E (ORCPT ); Fri, 13 Nov 2020 01:57:04 -0500 Received: from sender2-op-o12.zoho.com.cn ([163.53.93.243]:17155 "EHLO sender2-op-o12.zoho.com.cn" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726188AbgKMG5E (ORCPT ); Fri, 13 Nov 2020 01:57:04 -0500 ARC-Seal: i=1; a=rsa-sha256; t=1605250605; cv=none; d=zoho.com.cn; s=zohoarc; b=kFmChfc4GlxQHCLnzUNSJyAX51LfY5QmzYpuZU0GKYaOrOOyUk8xBYDKQpclLqlQH4zU5cdBYAQ4Q8N2ld5U6q0nmVKylJC4ufP61M/nRofnAzhdxPsWBRf4bLFC40SBY4ozMuu0t8Y2TAOvL5O8uxlMs3NV4qt0Oa44DqSVsjY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com.cn; s=zohoarc; t=1605250605; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:To; bh=NlKEQcKE+RNemWdOzA+NXWjXnwiavlahEmjugedQVBk=; b=eF7MH9is43mBl+YG2q8BRfp14dufGixHbC7hscMEOuQlPRlco9qexO8n3zNHSTOXdyRuADDADMmdxnyDzEG1zs+f6oCas7jOer6dO3SilBmbj6kZHjEwqTqDf5ZbeB0Fh/Y3C5/FmeDsQBetl/Bf9WvZyVjbtwf2BeFB3BQksbY= ARC-Authentication-Results: i=1; mx.zoho.com.cn; dkim=pass header.i=mykernel.net; spf=pass smtp.mailfrom=cgxu519@mykernel.net; dmarc=pass header.from= header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1605250605; s=zohomail; d=mykernel.net; i=cgxu519@mykernel.net; h=From:To:Cc:Message-ID:Subject:Date:In-Reply-To:References:MIME-Version:Content-Transfer-Encoding:Content-Type; bh=NlKEQcKE+RNemWdOzA+NXWjXnwiavlahEmjugedQVBk=; b=ShkQYaIdjJp/sCKYNhZ+8u4RHfppwY1wMau6NO5KqQ8wXdlqxLdJAEnOpnJoyAyC jLzpkPTvzYU4NBWUXQAbnyJr3oLs5qW9h1qTfoZxAqE63+Tcth8QM66uN04ybVr/uxZ sgH4pfiXoAI1a0+LFVqJRpcOD6UkwYsFQpy+cYmE= Received: from localhost.localdomain (116.30.195.173 [116.30.195.173]) by mx.zoho.com.cn with SMTPS id 1605250603530773.1814704162608; Fri, 13 Nov 2020 14:56:43 +0800 (CST) From: Chengguang Xu To: miklos@szeredi.hu, jack@suse.cz, amir73il@gmail.com Cc: linux-unionfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, Chengguang Xu Message-ID: <20201113065555.147276-2-cgxu519@mykernel.net> Subject: [RFC PATCH v4 1/9] ovl: setup overlayfs' private bdi Date: Fri, 13 Nov 2020 14:55:47 +0800 X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201113065555.147276-1-cgxu519@mykernel.net> References: <20201113065555.147276-1-cgxu519@mykernel.net> MIME-Version: 1.0 X-ZohoCNMailClient: External Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Setup overlayfs' private bdi so that we can collect overlayfs' own dirty inodes. Signed-off-by: Chengguang Xu --- fs/overlayfs/super.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index 290983bcfbb3..d1e546abce87 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -1869,6 +1869,10 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent) if (!ofs) goto out; + err = super_setup_bdi(sb); + if (err) + goto out_err; + ofs->creator_cred = cred = prepare_creds(); if (!cred) goto out_err;