From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 72F4A7F52 for ; Fri, 28 Jun 2013 10:11:14 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 549328F804C for ; Fri, 28 Jun 2013 08:11:14 -0700 (PDT) Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id s31aqyy4uWW8ou7t (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 28 Jun 2013 08:11:13 -0700 (PDT) Date: Fri, 28 Jun 2013 11:11:07 -0400 From: Dwight Engen Subject: [PATCH 1/6] create wrappers for converting kuid_t to/from uid_t Message-ID: <20130628111107.51e3aa88@oracle.com> In-Reply-To: <20130626020924.GD29376@dastard> References: <20130619110948.0bfafa2b@oracle.com> <20130620001341.GM29338@dastard> <20130620095410.1917d235@oracle.com> <20130620220311.GT29376@dastard> <20130621111420.5592707e@oracle.com> <20130624003316.GH29376@dastard> <20130624091035.6274800f@oracle.com> <20130626020924.GD29376@dastard> Mime-Version: 1.0 List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: Dave Chinner Cc: Brian Foster , Serge Hallyn , "Eric W. Biederman" , xfs@oss.sgi.com Signed-off-by: Dwight Engen --- fs/xfs/xfs_linux.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h index 800f896..761e4c0 100644 --- a/fs/xfs/xfs_linux.h +++ b/fs/xfs/xfs_linux.h @@ -159,6 +159,32 @@ #define MAX(a,b) (max(a,b)) #define howmany(x, y) (((x)+((y)-1))/(y)) +/* Kernel uid/gid conversion. These are used to convert to/from the on disk + * uid_t/gid_t types to the kuid_t/kgid_t types that the kernel uses internally. + * The conversion here is type only, the value will remain the same since we + * are converting to the init_user_ns. The uid is later mapped to a particular + * user namespace value when crossing the kernel/user boundary. + */ +static inline __uint32_t xfs_kuid_to_uid(kuid_t uid) +{ + return from_kuid(&init_user_ns, uid); +} + +static inline kuid_t xfs_uid_to_kuid(__uint32_t uid) +{ + return make_kuid(&init_user_ns, uid); +} + +static inline __uint32_t xfs_kgid_to_gid(kgid_t gid) +{ + return from_kgid(&init_user_ns, gid); +} + +static inline kgid_t xfs_gid_to_kgid(__uint32_t gid) +{ + return make_kgid(&init_user_ns, gid); +} + /* * Various platform dependent calls that don't fit anywhere else */ -- 1.8.1.4 _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs