From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Monakhov Subject: [PATCH 1/4] vfs: Add additional owner identifier Date: Fri, 29 Oct 2010 17:03:37 +0400 Message-ID: <1288357420-7178-2-git-send-email-dmonakhov@openvz.org> References: <1288357420-7178-1-git-send-email-dmonakhov@openvz.org> Cc: viro@ZenIV.linux.org.uk, jack@suse.cz, linux-ext4@vger.kernel.org, Dmitry Monakhov To: linux-fsdevel@vger.kernel.org Return-path: Received: from mail-ey0-f174.google.com ([209.85.215.174]:61064 "EHLO mail-ey0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756141Ab0J2NDz (ORCPT ); Fri, 29 Oct 2010 09:03:55 -0400 In-Reply-To: <1288357420-7178-1-git-send-email-dmonakhov@openvz.org> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: This patch add project inode identifier. Project ID may be used as auxiliary owner specifier in addition to standard uid/gid. Signed-off-by: Dmitry Monakhov --- fs/Kconfig | 7 +++++++ include/linux/fs.h | 1 + include/linux/xattr.h | 3 +++ 3 files changed, 11 insertions(+), 0 deletions(-) diff --git a/fs/Kconfig b/fs/Kconfig index c49e224..4250f0b 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -58,6 +58,13 @@ config FILE_LOCKING This option enables standard file locking support, required for filesystems like NFS and for the flock() system call. Disabling this option saves about 11k. +config PROJECT_ID + bool "Enable project inode identifier" + default y + help + This option enables project inode identifier. Project ID + may be used as auxiliary owner specifier in addition to + standard uid/gid. source "fs/notify/Kconfig" diff --git a/include/linux/fs.h b/include/linux/fs.h index 24dd5d5..cba9a65 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1611,6 +1611,7 @@ struct super_operations { #endif int (*bdev_try_to_free_page)(struct super_block*, struct page*, gfp_t); int (*trim_fs) (struct super_block *, struct fstrim_range *); + u32 (*get_prjid)(const struct inode *inode); }; /* diff --git a/include/linux/xattr.h b/include/linux/xattr.h index f1e5bde..2f64a1c 100644 --- a/include/linux/xattr.h +++ b/include/linux/xattr.h @@ -47,6 +47,9 @@ #define XATTR_CAPS_SUFFIX "capability" #define XATTR_NAME_CAPS XATTR_SECURITY_PREFIX XATTR_CAPS_SUFFIX +#define XATTR_PRJID "system.project_id" +#define XATTR_PRJID_LEN (sizeof (XATTR_PRJID)) + struct inode; struct dentry; -- 1.6.5.2