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 X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6E1E4C55ABD for ; Fri, 13 Nov 2020 06:57:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 23C2920B80 for ; Fri, 13 Nov 2020 06:57:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mykernel.net header.i=cgxu519@mykernel.net header.b="SLMS3bno" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726343AbgKMG5c (ORCPT ); Fri, 13 Nov 2020 01:57:32 -0500 Received: from sender2-op-o12.zoho.com.cn ([163.53.93.243]:17194 "EHLO sender2-op-o12.zoho.com.cn" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726301AbgKMG5b (ORCPT ); Fri, 13 Nov 2020 01:57:31 -0500 ARC-Seal: i=1; a=rsa-sha256; t=1605250629; cv=none; d=zoho.com.cn; s=zohoarc; b=XxfuUQ2O6vD2Zbthi377ozGLKA6+svQR8Wp/5kNWihA75a9vY5JMbqlM3Z+0ufjNJH/g86Kbplao2jWEt2iLALRAss/9KqYELmr2pyLynMWHMwcmcHlV0hOAIOR7gRikRHQfUNRFpOGoVsM5m8WdDBTn2Ak1sUc+u+jQUduLT78= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com.cn; s=zohoarc; t=1605250629; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:To; bh=fvqzm+3URTfc4SNv5XnFr/jbDxgFHKTjuWBcOlIXqVs=; b=R3DRbasmzrGnV0g5pkwUb9zEehxcUy0wLCtGzDKnGVNv2bcUv+ySGJnZutLU8oCTnK87aHEKqkfsz7cQxl7SmH+ycTrzGKANM7hr7GzQf/JoFRIVz/d/BGAde6CZuPCsh+cXqj2AcILhlD6b9yk8wfy1hsP8hp2iZ9jCoDs+4VE= 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=1605250629; 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=fvqzm+3URTfc4SNv5XnFr/jbDxgFHKTjuWBcOlIXqVs=; b=SLMS3bnoENjizdCvCH5EoGwrboGl+PJnz0RWQsA51CBd6fiQZhlINSsLJ+fE8OX1 bepADgcqWmpyM1quWj0fY+BD9jVZw4bfgK3LvgA6TnNw/gLtNsSWmIVWExPCJIv4ekZ 2a8A2yC7tsQ8ctB6FWZP3jriD6CuVUEg5JvotEBU= Received: from localhost.localdomain (116.30.195.173 [116.30.195.173]) by mx.zoho.com.cn with SMTPS id 1605250628208189.30840318851824; Fri, 13 Nov 2020 14:57:08 +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: <20201113065555.147276-9-cgxu519@mykernel.net> Subject: [RFC PATCH v4 8/9] fs: export wait_sb_inodes() Date: Fri, 13 Nov 2020 14:55:54 +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 Content-Transfer-Encoding: quoted-printable X-ZohoCNMailClient: External Content-Type: text/plain; charset=utf8 Precedence: bulk List-ID: X-Mailing-List: linux-unionfs@vger.kernel.org In order to wait syncing upper inodes we need to call wait_sb_inodes() in overlayfs' ->sync_fs. Signed-off-by: Chengguang Xu --- fs/fs-writeback.c | 3 ++- include/linux/writeback.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 149227160ff0..55dafdc72661 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -2365,7 +2365,7 @@ EXPORT_SYMBOL(__mark_inode_dirty); * completed by the time we have gained the lock and waited for all IO tha= t is * in progress regardless of the order callers are granted the lock. */ -static void wait_sb_inodes(struct super_block *sb) +void wait_sb_inodes(struct super_block *sb) { =09LIST_HEAD(sync_list); =20 @@ -2449,6 +2449,7 @@ static void wait_sb_inodes(struct super_block *sb) =09rcu_read_unlock(); =09mutex_unlock(&sb->s_sync_lock); } +EXPORT_SYMBOL(wait_sb_inodes); =20 static void __writeback_inodes_sb_nr(struct super_block *sb, unsigned long= nr, =09=09=09=09 enum wb_reason reason, bool skip_if_busy) diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 8e5c5bb16e2d..53e826af33b6 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -198,6 +198,7 @@ void wakeup_flusher_threads_bdi(struct backing_dev_info= *bdi, =09=09=09=09enum wb_reason reason); void inode_wait_for_writeback(struct inode *inode); void inode_io_list_del(struct inode *inode); +void wait_sb_inodes(struct super_block *sb); =20 /* writeback.h requires fs.h; it, too, is not included from here. */ static inline void wait_on_inode(struct inode *inode) --=20 2.26.2