-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * 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.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2013, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LINUX_OBD_H
-#define __LINUX_OBD_H
-
-#ifndef __OBD_H
-#error Do not #include this file directly. #include <obd.h> instead
-#endif
-
-#include <obd_support.h>
-
-#include <linux/fs.h>
-#include <linux/list.h>
-#include <linux/sched.h> /* for struct task_struct, for current.h */
-#include <linux/proc_fs.h>
-#include <linux/mount.h>
-
-#define CLIENT_OBD_LIST_LOCK_DEBUG 1
-
-typedef struct {
- spinlock_t lock;
-
-#ifdef CLIENT_OBD_LIST_LOCK_DEBUG
- unsigned long time;
- struct task_struct *task;
- const char *func;
- int line;
-#endif
-} client_obd_lock_t;
-
-#ifdef CLIENT_OBD_LIST_LOCK_DEBUG
-static inline void __client_obd_list_lock(client_obd_lock_t *lock,
- const char *func, int line)
-{
- unsigned long cur = jiffies;
- while (1) {
- if (spin_trylock(&lock->lock)) {
- LASSERT(lock->task == NULL);
- lock->task = current;
- lock->func = func;
- lock->line = line;
- lock->time = jiffies;
- break;
- }
-
- if ((jiffies - cur > msecs_to_jiffies(5 * MSEC_PER_SEC)) &&
- (jiffies - lock->time >
- msecs_to_jiffies(5 * MSEC_PER_SEC))) {
- struct task_struct *task = lock->task;
-
- if (task == NULL)
- continue;
-
- LCONSOLE_WARN("%s:%d: lock %p was acquired"
- " by <%s:%d:%s:%d> for %lu seconds.\n",
- current->comm, current->pid,
- lock, task->comm, task->pid,
- lock->func, lock->line,
- jiffies_to_msecs(jiffies - lock->time) /
- MSEC_PER_SEC);
- LCONSOLE_WARN("====== for process holding the "
- "lock =====\n");
- libcfs_debug_dumpstack(task);
- LCONSOLE_WARN("====== for current process =====\n");
- libcfs_debug_dumpstack(NULL);
- LCONSOLE_WARN("====== end =======\n");
- cfs_pause(msecs_to_jiffies(1000 * MSEC_PER_SEC));
- }
- cpu_relax();
- }
-}
-
-#define client_obd_list_lock(lock) \
- __client_obd_list_lock(lock, __FUNCTION__, __LINE__)
-
-static inline void client_obd_list_unlock(client_obd_lock_t *lock)
-{
- LASSERT(lock->task != NULL);
- lock->task = NULL;
- lock->time = jiffies;
- spin_unlock(&lock->lock);
-}
-
-#else /* CLIENT_OBD_LIST_LOCK_DEBUG */
-static inline void client_obd_list_lock(client_obd_lock_t *lock)
-{
- spin_lock(&lock->lock);
-}
-
-static inline void client_obd_list_unlock(client_obd_lock_t *lock)
-{
- spin_unlock(&lock->lock);
-}
-
-#endif /* !CLIENT_OBD_LIST_LOCK_DEBUG */
-
-static inline void client_obd_list_lock_init(client_obd_lock_t *lock)
-{
- spin_lock_init(&lock->lock);
-}
-
-static inline void client_obd_list_lock_done(client_obd_lock_t *lock)
-{}
-
-#ifndef HAVE_ADLER
-/* zlib_adler() is an inline function defined in zutil.h */
-# define HAVE_ADLER
-#endif /* !HAVE_ADLER */
-#endif /* __LINUX_OBD_H */