From patchwork Thu Jun 3 19:12:22 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: jvrao X-Patchwork-Id: 104156 X-Patchwork-Delegate: ericvh@gmail.com Received: from lists.sourceforge.net (lists.sourceforge.net [216.34.181.88]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o53J93Li008994 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 3 Jun 2010 19:09:39 GMT Received: from localhost ([127.0.0.1] helo=sfs-ml-4.v29.ch3.sourceforge.com) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.69) (envelope-from ) id 1OKFmg-0004fR-7o; Thu, 03 Jun 2010 19:08:54 +0000 Received: from sfi-mx-2.v28.ch3.sourceforge.com ([172.29.28.122] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.69) (envelope-from ) id 1OKFmf-0004fK-AE for v9fs-developer@lists.sourceforge.net; Thu, 03 Jun 2010 19:08:53 +0000 X-ACL-Warn: Received: from e33.co.us.ibm.com ([32.97.110.151]) by sfi-mx-2.v28.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.69) id 1OKFme-0006VL-65 for v9fs-developer@lists.sourceforge.net; Thu, 03 Jun 2010 19:08:53 +0000 Received: from d03relay03.boulder.ibm.com (d03relay03.boulder.ibm.com [9.17.195.228]) by e33.co.us.ibm.com (8.14.4/8.13.1) with ESMTP id o53J4WuY011626 for ; Thu, 3 Jun 2010 13:04:32 -0600 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay03.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id o53J8dKt042128 for ; Thu, 3 Jun 2010 13:08:42 -0600 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id o53J8cpK012382 for ; Thu, 3 Jun 2010 13:08:39 -0600 Received: from localhost.localdomain (elm9m80.beaverton.ibm.com [9.47.81.80]) by d03av02.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id o53J8bDG012293; Thu, 3 Jun 2010 13:08:38 -0600 From: "Venkateswararao Jujjuri (JV)" To: v9fs-developer@lists.sourceforge.net Date: Thu, 3 Jun 2010 12:12:22 -0700 Message-Id: <1275592343-326-2-git-send-email-jvrao@linux.vnet.ibm.com> X-Mailer: git-send-email 1.6.0.6 In-Reply-To: <1275592343-326-1-git-send-email-jvrao@linux.vnet.ibm.com> References: <1275592343-326-1-git-send-email-jvrao@linux.vnet.ibm.com> X-Spam-Score: -0.2 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -0.2 AWL AWL: From: address is in the auto white-list X-Headers-End: 1OKFme-0006VL-65 Subject: [V9fs-developer] [PATCH-V2 1/2] [9p] Add a helper function to get fsgid for a file create. X-BeenThere: v9fs-developer@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: v9fs-developer-bounces@lists.sourceforge.net X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Thu, 03 Jun 2010 19:09:39 +0000 (UTC) diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 0c9f103..03aa4b0 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -236,6 +236,23 @@ void v9fs_destroy_inode(struct inode *inode) #endif /** + * v9fs_get_fsgid_for_create - Helper function to get the gid for creating a + * new file system object. This checks the S_ISGID to determine the owning + * group of the new file system object. + */ + +gid_t v9fs_get_fsgid_for_create(struct dentry *dir_dentry) +{ + BUG_ON(dir_dentry->d_inode == NULL); + + if (dir_dentry->d_inode->i_mode & S_ISGID) { + /* set_gid bit is set.*/ + return dir_dentry->d_inode->i_gid; + } + return current_fsgid(); +} + +/** * v9fs_get_inode - helper function to setup an inode * @sb: superblock * @mode: mode to setup inode with