LU-9859 libcfs: remove prng

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

diff --git a/libcfs/include/libcfs/libcfs.h b/libcfs/include/libcfs/libcfs.h
index 59453fa..fce57ad 100644 (file)
--- a/libcfs/include/libcfs/libcfs.h
+++ b/libcfs/include/libcfs/libcfs.h
@@ -23,7 +23,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2015, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -33,14 +33,20 @@
 #ifndef __LIBCFS_LIBCFS_H__
 #define __LIBCFS_LIBCFS_H__
 
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/workqueue.h>
+
+#include <libcfs/linux/linux-misc.h>
+#include <libcfs/linux/linux-time.h>
+#include <libcfs/linux/linux-wait.h>
+
 #include <uapi/linux/lnet/libcfs_ioctl.h>
-#include <libcfs/linux/libcfs.h>
 #include <libcfs/libcfs_debug.h>
 #include <libcfs/libcfs_private.h>
 #include <libcfs/bitmap.h>
 #include <libcfs/libcfs_cpu.h>
 #include <libcfs/libcfs_prim.h>
-#include <libcfs/libcfs_time.h>
 #include <libcfs/libcfs_string.h>
 #include <libcfs/libcfs_workitem.h>
 #include <libcfs/libcfs_hash.h>
@@ -62,36 +68,27 @@
 # endif /* !__CHECKER__ */
 #endif /* !__must_hold */
 
-/* libcfs watchdogs */
-struct lc_watchdog;
-
-/* Add a watchdog which fires after "time" milliseconds of delay.  You have to
- * touch it once to enable it. */
-struct lc_watchdog *lc_watchdog_add(int time,
-                                    void (*cb)(pid_t pid, void *),
-                                    void *data);
-
-/* Enables a watchdog and resets its timer. */
-void lc_watchdog_touch(struct lc_watchdog *lcw, int timeout);
-#define CFS_GET_TIMEOUT(svc) (max_t(int, obd_timeout,                   \
-                          AT_OFF ? 0 : at_get(&svc->srv_at_estimate)) * \
-                          svc->srv_watchdog_factor)
-
-/* Disable a watchdog; touch it to restart it. */
-void lc_watchdog_disable(struct lc_watchdog *lcw);
-
-/* Clean up the watchdog */
-void lc_watchdog_delete(struct lc_watchdog *lcw);
+#ifdef HAVE_TOTALRAM_PAGES_AS_FUNC
+ #ifndef cfs_totalram_pages
+  #define cfs_totalram_pages() totalram_pages()
+ #endif
+#else
+ #ifndef cfs_totalram_pages
+  #define cfs_totalram_pages() totalram_pages
+ #endif
+#endif
 
 /* need both kernel and user-land acceptor */
 #define LNET_ACCEPTOR_MIN_RESERVED_PORT    512
 #define LNET_ACCEPTOR_MAX_RESERVED_PORT    1023
 
-/*
- * Drop into debugger, if possible. Implementation is provided by platform.
- */
-
-void cfs_enter_debugger(void);
+extern struct blocking_notifier_head libcfs_ioctl_list;
+static inline int notifier_from_ioctl_errno(int err)
+{
+       if (err == -EINVAL)
+               return NOTIFY_OK;
+       return notifier_from_errno(err) | NOTIFY_STOP_MASK;
+}
 
 /*
  * Defined by platform
@@ -103,16 +100,6 @@ sigset_t cfs_block_sigsinv(unsigned long sigs);
 void cfs_restore_sigs(sigset_t);
 void cfs_clear_sigpending(void);
 
-/*
- * Random number handling
- */
-
-/* returns a random 32-bit integer */
-unsigned int cfs_rand(void);
-/* seed the generator */
-void cfs_srand(unsigned int, unsigned int);
-void cfs_get_random_bytes(void *buf, int size);
-
 int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data);
 int libcfs_ioctl(unsigned long cmd, void __user *uparam);
 
@@ -125,15 +112,23 @@ static inline void *__container_of(const void *ptr, unsigned long shift)
                return (char *)ptr - shift;
 }
 
-#define container_of0(ptr, type, member)                               \
+#define container_of0(ptr, type, member) \
        ((type *)__container_of((ptr), offsetof(type, member)))
 
+extern struct workqueue_struct *cfs_rehash_wq;
+
 struct lnet_debugfs_symlink_def {
        const char *name;
        const char *target;
 };
 
-void lnet_insert_debugfs(struct ctl_table *table,
-                        const struct lnet_debugfs_symlink_def *symlinks);
+void lnet_insert_debugfs(struct ctl_table *table);
+void lnet_remove_debugfs(struct ctl_table *table);
+
+/* helper for sysctl handlers */
+int lprocfs_call_handler(void *data, int write, loff_t *ppos,
+                        void __user *buffer, size_t *lenp,
+                        int (*handler)(void *data, int write, loff_t pos,
+                                       void __user *buffer, int len));
 
 #endif /* _LIBCFS_LIBCFS_H_ */