Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754113Ab0H0LEB (ORCPT ); Fri, 27 Aug 2010 07:04:01 -0400 Received: from e23smtp06.au.ibm.com ([202.81.31.148]:52541 "EHLO e23smtp06.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753860Ab0H0LD6 (ORCPT ); Fri, 27 Aug 2010 07:03:58 -0400 From: "Aneesh Kumar K.V" To: hch@infradead.org, viro@zeniv.linux.org.uk, adilger@sun.com, corbet@lwn.net, neilb@suse.de, npiggin@kernel.dk, hooanon05@yahoo.co.jp, bfields@fieldses.org, miklos@szeredi.hu Cc: linux-fsdevel@vger.kernel.org, sfrench@us.ibm.com, philippe.deniel@CEA.FR, linux-kernel@vger.kernel.org, "Aneesh Kumar K.V" Subject: [PATCH -V19 07/15] vfs: Add handle based chown syscall Date: Fri, 27 Aug 2010 16:32:54 +0530 Message-Id: <1282906982-26918-8-git-send-email-aneesh.kumar@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1282906982-26918-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1282906982-26918-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1632 Lines: 56 Signed-off-by: Aneesh Kumar K.V --- fs/open.c | 20 ++++++++++++++++++++ include/linux/syscalls.h | 2 ++ 2 files changed, 22 insertions(+), 0 deletions(-) diff --git a/fs/open.c b/fs/open.c index 7abdcba..5e06c12 100644 --- a/fs/open.c +++ b/fs/open.c @@ -623,6 +623,26 @@ out: return error; } +SYSCALL_DEFINE4(handle_chown, int, mountdirfd, struct file_handle __user *, ufh, + uid_t, user, gid_t, group) +{ + struct path path; + int error = -EINVAL; + + error = handle_to_path(mountdirfd, ufh, &path); + if (error) + goto out; + error = mnt_want_write(path.mnt); + if (error) + goto out_release; + error = chown_common(&path, user, group); + mnt_drop_write(path.mnt); +out_release: + path_put(&path); +out: + return error; +} + /* * You have to be very careful that these write * counts get cleaned up in error cases and diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 9c82364..6dab72b 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -852,4 +852,6 @@ asmlinkage long sys_handle_stat(int mountdirfd, #endif asmlinkage long sys_handle_link(int mountdirfd, struct file_handle __user *uofh, int newfd, const char __user *newname); +asmlinkage long sys_handle_chown(int mountdirfd, struct file_handle __user *ufh, + uid_t user, gid_t group); #endif -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/