From nobody Mon Feb 9 12:15:15 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1643833680665135.4673505191024; Wed, 2 Feb 2022 12:28:00 -0800 (PST) Received: from localhost ([::1]:56078 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nFMER-0006YN-Px for importer@patchew.org; Wed, 02 Feb 2022 15:27:59 -0500 Received: from eggs.gnu.org ([209.51.188.92]:56330) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nFLU5-0004Sj-0m for qemu-devel@nongnu.org; Wed, 02 Feb 2022 14:40:05 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:29359) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nFLU1-00045X-5c for qemu-devel@nongnu.org; Wed, 02 Feb 2022 14:40:03 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-515-ZutMpLbmNHe65YMux_DYhQ-1; Wed, 02 Feb 2022 14:39:54 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A4D1184B9DC for ; Wed, 2 Feb 2022 19:39:53 +0000 (UTC) Received: from horse.redhat.com (unknown [10.22.32.185]) by smtp.corp.redhat.com (Postfix) with ESMTP id D3E765DB85; Wed, 2 Feb 2022 19:39:42 +0000 (UTC) Received: by horse.redhat.com (Postfix, from userid 10451) id D35C2224AC8; Wed, 2 Feb 2022 14:39:41 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1643830800; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rX++s4rPD/Pl4ZlYZolHc3t9oosvSA4FL66zOZzZRGM=; b=XqRGuo8NBr6UlycSciMRx4h7v9Rf+WPQ1O6enluj+bB0ErVk9WQTL6txBhQAsY0hBtOznr Xt43QBbuc4n+xFGKh+KuWxWEZFIjV+O4kwBZGX5tn5EzEoMgxuzK321j8sktAcZvcTtWWi S7avKeJtU+zhO23EZdSbW3Bd76JuuZU= X-MC-Unique: ZutMpLbmNHe65YMux_DYhQ-1 From: Vivek Goyal To: qemu-devel@nongnu.org, virtio-fs@redhat.com Subject: [PATCH v5 6/9] virtiofsd: Move core file creation code in separate function Date: Wed, 2 Feb 2022 14:39:32 -0500 Message-Id: <20220202193935.268777-7-vgoyal@redhat.com> In-Reply-To: <20220202193935.268777-1-vgoyal@redhat.com> References: <20220202193935.268777-1-vgoyal@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=vgoyal@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=vgoyal@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.086, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mszeredi@redhat.com, dgilbert@redhat.com, vgoyal@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1643833684056100001 Content-Type: text/plain; charset="utf-8" Move core file creation bits in a separate function. Soon this is going to get more complex as file creation need to set security context also. And there will be multiple modes of file creation in next patch. Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Vivek Goyal --- tools/virtiofsd/passthrough_ll.c | 36 ++++++++++++++++++++++---------- 1 file changed, 25 insertions(+), 11 deletions(-) diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough= _ll.c index b3d0674f6d..82023bf3d4 100644 --- a/tools/virtiofsd/passthrough_ll.c +++ b/tools/virtiofsd/passthrough_ll.c @@ -2001,6 +2001,30 @@ static int lo_do_open(struct lo_data *lo, struct lo_= inode *inode, return 0; } =20 +static int do_lo_create(fuse_req_t req, struct lo_inode *parent_inode, + const char *name, mode_t mode, + struct fuse_file_info *fi, int* open_fd) +{ + int err =3D 0, fd; + struct lo_cred old =3D {}; + struct lo_data *lo =3D lo_data(req); + + err =3D lo_change_cred(req, &old, lo->change_umask); + if (err) { + return err; + } + + /* Try to create a new file but don't open existing files */ + fd =3D openat(parent_inode->fd, name, fi->flags | O_CREAT | O_EXCL, mo= de); + if (fd =3D=3D -1) { + err =3D errno; + } else { + *open_fd =3D fd; + } + lo_restore_cred(&old, lo->change_umask); + return err; +} + static void lo_create(fuse_req_t req, fuse_ino_t parent, const char *name, mode_t mode, struct fuse_file_info *fi) { @@ -2010,7 +2034,6 @@ static void lo_create(fuse_req_t req, fuse_ino_t pare= nt, const char *name, struct lo_inode *inode =3D NULL; struct fuse_entry_param e; int err; - struct lo_cred old =3D {}; =20 fuse_log(FUSE_LOG_DEBUG, "lo_create(parent=3D%" PRIu64 ", name=3D%s)" " kill_priv=3D%d\n", parent, name, fi->kill_priv); @@ -2026,18 +2049,9 @@ static void lo_create(fuse_req_t req, fuse_ino_t par= ent, const char *name, return; } =20 - err =3D lo_change_cred(req, &old, lo->change_umask); - if (err) { - goto out; - } - update_open_flags(lo->writeback, lo->allow_direct_io, fi); =20 - /* Try to create a new file but don't open existing files */ - fd =3D openat(parent_inode->fd, name, fi->flags | O_CREAT | O_EXCL, mo= de); - err =3D fd =3D=3D -1 ? errno : 0; - - lo_restore_cred(&old, lo->change_umask); + err =3D do_lo_create(req, parent_inode, name, mode, fi, &fd); =20 /* Ignore the error if file exists and O_EXCL was not given */ if (err && (err !=3D EEXIST || (fi->flags & O_EXCL))) { --=20 2.34.1