LU-11089 obd: use wait_event_var() in lu_context_key_degister()

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

diff --git a/libcfs/include/libcfs/linux/linux-misc.h b/libcfs/include/libcfs/linux/linux-misc.h
index cb7c4cb..230d8d4 100644 (file)
--- a/libcfs/include/libcfs/linux/linux-misc.h
+++ b/libcfs/include/libcfs/linux/linux-misc.h
@@ -15,11 +15,7 @@
  *
  * 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
  */
@@ -27,7 +23,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2014, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -37,6 +33,10 @@
 #ifndef __LIBCFS_LINUX_MISC_H__
 #define __LIBCFS_LINUX_MISC_H__
 
+#include <linux/fs.h>
+#include <linux/mutex.h>
+#include <linux/user_namespace.h>
+
 #ifdef HAVE_SYSCTL_CTLNAME
 #define INIT_CTL_NAME  .ctl_name = CTL_UNNUMBERED,
 #define INIT_STRATEGY  .strategy = &sysctl_intvec,
@@ -45,6 +45,109 @@
 #define INIT_STRATEGY
 #endif
 
+#ifndef HAVE_MODULE_PARAM_LOCKING
+static DEFINE_MUTEX(param_lock);
+#endif
+
+#ifndef HAVE_UIDGID_HEADER
+
+#ifndef _LINUX_UIDGID_H
+#define _LINUX_UIDGID_H
+
+typedef uid_t kuid_t;
+typedef gid_t kgid_t;
+
+#define INVALID_UID    -1
+#define INVALID_GID    -1
+
+#define GLOBAL_ROOT_UID        0
+#define GLOBAL_ROOT_GID        0
+
+static inline uid_t __kuid_val(kuid_t uid)
+{
+       return uid;
+}
+
+static inline gid_t __kgid_val(kgid_t gid)
+{
+       return gid;
+}
+
+static inline kuid_t make_kuid(struct user_namespace *from, uid_t uid)
+{
+       return uid;
+}
+
+static inline kgid_t make_kgid(struct user_namespace *from, gid_t gid)
+{
+       return gid;
+}
+
+static inline uid_t from_kuid(struct user_namespace *to, kuid_t uid)
+{
+       return uid;
+}
+
+static inline gid_t from_kgid(struct user_namespace *to, kgid_t gid)
+{
+       return gid;
+}
+
+static inline bool uid_eq(kuid_t left, kuid_t right)
+{
+       return left == right;
+}
+
+static inline bool uid_valid(kuid_t uid)
+{
+       return uid != (typeof(uid))INVALID_UID;
+}
+
+static inline bool gid_valid(kgid_t gid)
+{
+       return gid != (typeof(gid))INVALID_GID;
+}
+#endif /* _LINUX_UIDGID_H */
+
+#endif
+
+int cfs_get_environ(const char *key, char *value, int *val_len);
+
+int cfs_kernel_write(struct file *filp, const void *buf, size_t count,
+                    loff_t *pos);
+
+/*
+ * For RHEL6 struct kernel_parm_ops doesn't exist. Also
+ * the arguments for .set and .get take different
+ * parameters which is handled below
+ */
+#ifdef HAVE_KERNEL_PARAM_OPS
+#define cfs_kernel_param_arg_t const struct kernel_param
+#else
+#define cfs_kernel_param_arg_t struct kernel_param_ops
+#define kernel_param_ops kernel_param
+#endif /* ! HAVE_KERNEL_PARAM_OPS */
+
+#ifndef HAVE_KERNEL_PARAM_LOCK
+static inline void kernel_param_unlock(struct module *mod)
+{
+#ifndef        HAVE_MODULE_PARAM_LOCKING
+       mutex_unlock(&param_lock);
+#else
+       __kernel_param_unlock();
+#endif
+}
+
+static inline void kernel_param_lock(struct module *mod)
+{
+#ifndef        HAVE_MODULE_PARAM_LOCKING
+       mutex_lock(&param_lock);
+#else
+       __kernel_param_lock();
+#endif
+}
+#endif /* ! HAVE_KERNEL_PARAM_LOCK */
+
 #ifndef HAVE_KSTRTOUL
 static inline int kstrtoul(const char *s, unsigned int base, unsigned long *res)
 {
@@ -57,4 +160,10 @@ static inline int kstrtoul(const char *s, unsigned int base, unsigned long *res)
 }
 #endif /* !HAVE_KSTRTOUL */
 
+#ifndef HAVE_KSTRTOBOOL_FROM_USER
+
+#define kstrtobool strtobool
+
+int kstrtobool_from_user(const char __user *s, size_t count, bool *res);
+#endif
 #endif