LU-9859 libcfs: simplify capability dropping.

[fs/lustre-release.git] / libcfs / include / libcfs / curproc.h

diff --git a/libcfs/include/libcfs/curproc.h b/libcfs/include/libcfs/curproc.h
index 518fbd4..197c0c9 100644 (file)
--- a/libcfs/include/libcfs/curproc.h
+++ b/libcfs/include/libcfs/curproc.h
@@ -1,6 +1,4 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
  * GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
@@ -17,17 +15,15 @@
  *
  * You should have received a copy of the GNU General Public License
  * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
  *
  * GPL HEADER END
  */
 /*
- * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2014, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -43,36 +39,13 @@
 #ifndef __LIBCFS_CURPROC_H__
 #define __LIBCFS_CURPROC_H__
 
-#ifdef __KERNEL__
-/*
- * Portable API to access common characteristics of "current" UNIX process.
- *
- * Implemented in portals/include/libcfs/<os>/
- */
-uid_t  cfs_curproc_uid(void);
-gid_t  cfs_curproc_gid(void);
-uid_t  cfs_curproc_fsuid(void);
-gid_t  cfs_curproc_fsgid(void);
-pid_t  cfs_curproc_pid(void);
-int    cfs_curproc_groups_nr(void);
-int    cfs_curproc_is_in_groups(gid_t group);
-void   cfs_curproc_groups_dump(gid_t *array, int size);
-mode_t cfs_curproc_umask(void);
-char  *cfs_curproc_comm(void);
-
+typedef __u32 cfs_cap_t;
 
-/*
- * Plus, platform-specific constant
- *
- * CFS_CURPROC_COMM_MAX,
- *
- * and opaque scalar type
- *
- * cfs_kernel_cap_t
- */
-cfs_kernel_cap_t cfs_curproc_cap_get(void);
-void cfs_curproc_cap_set(cfs_kernel_cap_t cap);
-#endif
+static inline cfs_cap_t cfs_curproc_cap_pack(void)
+{
+       /* cfs_cap_t is only the first word of kernel_cap_t */
+       return (cfs_cap_t)(current_cap().cap[0]);
+}
 
 /* __LIBCFS_CURPROC_H__ */
 #endif