From patchwork Thu Mar 14 02:17:52 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ronnie Sahlberg X-Patchwork-Id: 10852057 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C32571575 for ; Thu, 14 Mar 2019 02:18:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AEE582A003 for ; Thu, 14 Mar 2019 02:18:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A2E6929F7A; Thu, 14 Mar 2019 02:18:50 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2C02F2A003 for ; Thu, 14 Mar 2019 02:18:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726680AbfCNCSt (ORCPT ); Wed, 13 Mar 2019 22:18:49 -0400 Received: from mx1.redhat.com ([209.132.183.28]:39052 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726575AbfCNCSt (ORCPT ); Wed, 13 Mar 2019 22:18:49 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 093053001C89; Thu, 14 Mar 2019 02:18:49 +0000 (UTC) Received: from test1135.test.redhat.com (vpn2-54-111.bne.redhat.com [10.64.54.111]) by smtp.corp.redhat.com (Postfix) with ESMTP id 849F71001DD5; Thu, 14 Mar 2019 02:18:47 +0000 (UTC) From: Ronnie Sahlberg To: linux-cifs Cc: Steve French , Ronnie Sahlberg Subject: [PATCH] cifs: fix fallocate(mode==0) for extending non-sparse files Date: Thu, 14 Mar 2019 12:17:52 +1000 Message-Id: <20190314021752.24891-2-lsahlber@redhat.com> In-Reply-To: <20190314021752.24891-1-lsahlber@redhat.com> References: <20190314021752.24891-1-lsahlber@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.43]); Thu, 14 Mar 2019 02:18:49 +0000 (UTC) Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add support for the case when fallocate(mode==0) and we need to extend a non-sparse file. Signed-off-by: Ronnie Sahlberg --- fs/cifs/smb2ops.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 32dde87feaa9..eee5a27ca95e 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -2718,6 +2718,7 @@ static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon, struct cifsFileInfo *cfile = file->private_data; long rc = -EOPNOTSUPP; unsigned int xid; + __le64 eof; xid = get_xid(); @@ -2747,9 +2748,12 @@ static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon, else if (i_size_read(inode) >= off + len) /* not extending file and already not sparse */ rc = 0; - /* BB: in future add else clause to extend file */ - else - rc = -EOPNOTSUPP; + else { + eof = cpu_to_le64(off + len); + rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, + cfile->fid.volatile_fid, + cfile->pid, &eof); + } if (rc) trace_smb3_falloc_err(xid, cfile->fid.persistent_fid, tcon->tid, tcon->ses->Suid, off, len, rc);