*
* 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 (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/
- * Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef __LIBCFS_LIBCFS_H__
#define __LIBCFS_LIBCFS_H__
-#include <libcfs/types.h>
-#include <libcfs/list.h>
-
-#ifndef __KERNEL__
-# include <libcfs/user-time.h>
-# else /* __KERNEL__ */
-# include <libcfs/linux/libcfs.h>
-# include "curproc.h"
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/workqueue.h>
+#include <linux/sched.h>
+#ifdef HAVE_SCHED_HEADERS
+#include <linux/sched/signal.h>
+#endif
-#define LIBCFS_VERSION "0.5.0"
+#include <libcfs/linux/linux-misc.h>
+#include <libcfs/linux/linux-mem.h>
+#include <libcfs/linux/linux-time.h>
+#include <libcfs/linux/linux-wait.h>
-static inline int __is_po2(unsigned long long val)
-{
- return !(val & (val - 1));
-}
+#include <uapi/linux/lnet/libcfs_ioctl.h>
+#include <libcfs/libcfs_debug.h>
+#include <libcfs/libcfs_private.h>
+#include <libcfs/bitmap.h>
+#include <libcfs/libcfs_cpu.h>
+#include <libcfs/libcfs_string.h>
+#include <libcfs/libcfs_workitem.h>
+#include <libcfs/libcfs_hash.h>
+#include <libcfs/libcfs_fail.h>
+#include "curproc.h"
-#define IS_PO2(val) __is_po2((unsigned long long)(val))
-#define PO2_ROUNDUP_TYPED(x, po2, type) (-(-(type)(x) & -(type)(po2)))
-#define LOWEST_BIT_SET(x) ((x) & ~((x) - 1))
+#define LIBCFS_VERSION "0.7.1"
/* Sparse annotations */
#if !defined(__must_hold)
# 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);
+typedef s32 timeout_t;
/* 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);
-
-/*
- * Defined by platform
- */
-int unshare_fs_struct(void);
-sigset_t cfs_block_allsigs(void);
-sigset_t cfs_block_sigs(unsigned long sigs);
-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);
-#endif /* __KERNEL__ */
-
-#include <libcfs/byteorder.h>
-#include <libcfs/libcfs_debug.h>
-#include <libcfs/libcfs_private.h>
-#ifdef __KERNEL__
-# include <libcfs/bitmap.h>
-# include <libcfs/libcfs_cpu.h>
-# include <libcfs/libcfs_ioctl.h>
-# include <libcfs/libcfs_prim.h>
-#endif /* __KERNEL__ */
-#include <libcfs/libcfs_time.h>
-#ifdef __KERNEL__
-# include <libcfs/libcfs_string.h>
-# include <libcfs/libcfs_workitem.h>
-# include <libcfs/libcfs_hash.h>
-# include <libcfs/libcfs_heap.h>
-# include <libcfs/libcfs_fail.h>
+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;
+}
int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data);
-int libcfs_ioctl(unsigned long cmd, void __user *uparam);
-/* container_of depends on "likely" which is defined in libcfs_private.h */
-static inline void *__container_of(const void *ptr, unsigned long shift)
-{
- if (unlikely(IS_ERR(ptr) || ptr == NULL))
- return ERR_CAST(ptr);
- else
- return (char *)ptr - shift;
-}
+extern struct workqueue_struct *cfs_rehash_wq;
-#define container_of0(ptr, type, member) \
- ((type *)__container_of((ptr), offsetof(type, member)))
+void lnet_insert_debugfs(struct ctl_table *table);
+void lnet_remove_debugfs(struct ctl_table *table);
-#endif /* __KERNEL__ */
+/* 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));
+int debugfs_doint(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp, loff_t *ppos);
+
+/*
+ * Memory
+ */
+#if BITS_PER_LONG == 32
+/* limit to lowmem on 32-bit systems */
+#define NUM_CACHEPAGES \
+ min(cfs_totalram_pages(), 1UL << (30 - PAGE_SHIFT) * 3 / 4)
+#else
+#define NUM_CACHEPAGES cfs_totalram_pages()
+#endif
+
+#define wait_var_event_warning(var, condition, format, ...) \
+do { \
+ int counter = 4; \
+ might_sleep(); \
+ if (condition) \
+ break; \
+ ___wait_var_event(var, condition, TASK_UNINTERRUPTIBLE, 0, 0, \
+ if (schedule_timeout(cfs_time_seconds(1)) == 0)\
+ CDEBUG(is_power_of_2(counter++) ? \
+ D_WARNING : D_NET, \
+ format, ## __VA_ARGS__) \
+ ); \
+} while (0)
+
+/* atomic-context safe vfree */
+void libcfs_vfree_atomic(const void *addr);
+
+/* interval tree */
+
+#ifdef HAVE_INTERVAL_TREE_CACHED
+#define interval_tree_root rb_root_cached
+#define interval_tree_first rb_first_cached
+#define INTERVAL_TREE_ROOT RB_ROOT_CACHED
+#else
+#define interval_tree_root rb_root
+#define interval_tree_first rb_first
+#define INTERVAL_TREE_ROOT RB_ROOT
+#endif /* HAVE_INTERVAL_TREE_CACHED */
#endif /* _LIBCFS_LIBCFS_H_ */