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/*
* 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) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*
* libcfs/include/libcfs/linux/linux-prim.h
*
* Basic library routines.
*/
#ifndef __LIBCFS_LINUX_CFS_PRIM_H__
#define __LIBCFS_LINUX_CFS_PRIM_H__
#ifndef __LIBCFS_LIBCFS_H__
#error Do not #include this file directly. #include <linux/libcfs/libcfs.h> instead
#endif
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/proc_fs.h>
#include <linux/mm.h>
#include <linux/timer.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/kthread.h>
#include <linux/random.h>
#include <linux/miscdevice.h>
#include <linux/libcfs/linux/portals_compat25.h>
#include <asm/div64.h>
#include <linux/libcfs/linux/linux-time.h>
/*
* CPU
*/
#ifdef for_each_possible_cpu
#define cfs_for_each_possible_cpu(cpu) for_each_possible_cpu(cpu)
#elif defined(for_each_cpu)
#define cfs_for_each_possible_cpu(cpu) for_each_cpu(cpu)
#endif
#ifdef NR_CPUS
#else
#define NR_CPUS 1
#endif
/*
* cache
*/
/*
* IRQs
*/
/*
* Pseudo device register
*/
typedef struct miscdevice psdev_t;
/*
* Sysctl register
*/
typedef struct ctl_table ctl_table_t;
typedef struct ctl_table_header ctl_table_header_t;
#define cfs_register_sysctl_table(t, a) register_sysctl_table(t)
#define DECLARE_PROC_HANDLER(name) \
static int \
LL_PROC_PROTO(name) \
{ \
DECLARE_LL_PROC_PPOS_DECL; \
\
return proc_call_handler(table->data, write, \
ppos, buffer, lenp, \
__##name); \
}
/*
* Symbol register
*/
#define cfs_symbol_register(s, p) do {} while(0)
#define cfs_symbol_unregister(s) do {} while(0)
#define cfs_symbol_get(s) symbol_get(s)
#define cfs_symbol_put(s) symbol_put(s)
typedef struct module module_t;
/*
* Proc file system APIs
*/
typedef struct proc_dir_entry proc_dir_entry_t;
/*
* Wait Queue
*/
typedef long cfs_task_state_t;
#define CFS_DECL_WAITQ(wq) DECLARE_WAIT_QUEUE_HEAD(wq)
/*
* Task struct
*/
typedef struct task_struct task_t;
#define DECL_JOURNAL_DATA void *journal_info
#define PUSH_JOURNAL do { \
journal_info = current->journal_info; \
current->journal_info = NULL; \
} while(0)
#define POP_JOURNAL do { \
current->journal_info = journal_info; \
} while(0)
/* Module interfaces */
#define cfs_module(name, version, init, fini) \
module_init(init); \
module_exit(fini)
/*
* Signal
*/
/*
* Timer
*/
typedef struct timer_list timer_list_t;
#ifndef wait_event_timeout /* Only for RHEL3 2.4.21 kernel */
#define __wait_event_timeout(wq, condition, timeout, ret) \
do { \
int __ret = 0; \
if (!(condition)) { \
wait_queue_t __wait; \
unsigned long expire; \
\
init_waitqueue_entry(&__wait, current); \
expire = timeout + jiffies; \
add_wait_queue(&wq, &__wait); \
for (;;) { \
set_current_state(TASK_UNINTERRUPTIBLE); \
if (condition) \
break; \
if (jiffies > expire) { \
ret = jiffies - expire; \
break; \
} \
schedule_timeout(timeout); \
} \
current->state = TASK_RUNNING; \
remove_wait_queue(&wq, &__wait); \
} \
} while (0)
/*
retval == 0; condition met; we're good.
retval > 0; timed out.
*/
#define cfs_waitq_wait_event_timeout(wq, condition, timeout, ret) \
do { \
ret = 0; \
if (!(condition)) \
__wait_event_timeout(wq, condition, timeout, ret); \
} while (0)
#else
#define cfs_waitq_wait_event_timeout(wq, condition, timeout, ret) \
ret = wait_event_timeout(wq, condition, timeout)
#endif
#define cfs_waitq_wait_event_interruptible_timeout(wq, c, timeout, ret) \
ret = wait_event_interruptible_timeout(wq, c, timeout)
/*
* atomic
*/
#define cfs_atomic_add_unless(atom, a, u) atomic_add_unless(atom, a, u)
#define cfs_atomic_cmpxchg(atom, old, nv) atomic_cmpxchg(atom, old, nv)
/*
* membar
*/
/*
* interrupt
*/
/*
* might_sleep
*/
/*
* group_info
*/
typedef struct group_info group_info_t;
/*
* Random bytes
*/
#endif
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