From patchwork Wed Nov 21 14:25:30 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Shilovsky X-Patchwork-Id: 1781101 Return-Path: X-Original-To: patchwork-cifs-client@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 02DF1DF230 for ; Wed, 21 Nov 2012 14:25:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754797Ab2KUOZq (ORCPT ); Wed, 21 Nov 2012 09:25:46 -0500 Received: from mail-lb0-f174.google.com ([209.85.217.174]:57924 "EHLO mail-lb0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754384Ab2KUOZp (ORCPT ); Wed, 21 Nov 2012 09:25:45 -0500 Received: by mail-lb0-f174.google.com with SMTP id gi11so2748933lbb.19 for ; Wed, 21 Nov 2012 06:25:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:subject:date:message-id:x-mailer:in-reply-to :references; bh=XGff9Z9fxhztL1uhqSS6eqxfwmD1s1XWk07+j6cDtsY=; b=ll4lKF5eJ0eUKpi42oN95el/4I0F5twkm+SPFJyUtwkjAdSvfTS4zcRZWEJXsrn4jM GaSQJ4FMZ054iRqw2umqzWp8mVrctzqKqQhLhYggnBptVrwwlj1qJm2Sw7VWwdAyADvy MwSsS1UX6qNIyKiB1vYkgaHfbRJU7pBN5IuJuP+HsCgQHamlu2YlAO5GBigoB5pURHHK OLm29MYJ7NjUdEX29eoQz3Rk0gNuYAlYCFGvD5dpbJc/+SqAh0KqtAgJEqB/Lu2TAVp9 MjwQePccYtZPghXw5ferRztzFEEJtq6ANtEcx2VYGCS8sJIWzXHPg7PBzkgbSZfwPVWg SRbQ== Received: by 10.152.104.148 with SMTP id ge20mr17653914lab.51.1353507943998; Wed, 21 Nov 2012 06:25:43 -0800 (PST) Received: from localhost.localdomain ([95.84.13.152]) by mx.google.com with ESMTPS id pz9sm114246lab.11.2012.11.21.06.25.42 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 21 Nov 2012 06:25:43 -0800 (PST) From: Pavel Shilovsky To: linux-cifs@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 3/3] CIFS: Use NT_CREATE_ANDX command for forcemand mounts Date: Wed, 21 Nov 2012 18:25:30 +0400 Message-Id: <1353507930-10908-4-git-send-email-piastry@etersoft.ru> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1353507930-10908-1-git-send-email-piastry@etersoft.ru> References: <1353507930-10908-1-git-send-email-piastry@etersoft.ru> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org forcemand mount option now lets us use Windows mandatory style of byte-range locks even if server supports posix ones - switches on Windows locking mechanism. Share flags is another locking mehanism provided by Windows semantic that can be used by NT_CREATE_ANDX command. This patch combines all Windows locking mechanism in one mount option by using NT_CREATE_ANDX to open files if forcemand is on. Signed-off-by: Pavel Shilovsky --- fs/cifs/dir.c | 1 + fs/cifs/file.c | 6 ++++-- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 12ee773..06be419 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -185,6 +185,7 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid, } if (tcon->unix_ext && cap_unix(tcon->ses) && !tcon->broken_posix_open && + ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0) && (CIFS_UNIX_POSIX_PATH_OPS_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability))) { rc = cifs_posix_open(full_path, &newinode, inode->i_sb, mode, diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 3c16d9c..be0c3ea 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -426,8 +426,9 @@ int cifs_open(struct inode *inode, struct file *file) else oplock = 0; - if (!tcon->broken_posix_open && tcon->unix_ext && - cap_unix(tcon->ses) && (CIFS_UNIX_POSIX_PATH_OPS_CAP & + if (!tcon->broken_posix_open && tcon->unix_ext && cap_unix(tcon->ses) + && ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0) && + (CIFS_UNIX_POSIX_PATH_OPS_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability))) { /* can not refresh inode info since size could be stale */ rc = cifs_posix_open(full_path, &inode, inode->i_sb, @@ -575,6 +576,7 @@ cifs_reopen_file(struct cifsFileInfo *cfile, bool can_flush) oplock = 0; if (tcon->unix_ext && cap_unix(tcon->ses) && + ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0) && (CIFS_UNIX_POSIX_PATH_OPS_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability))) { /*