1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 *   Copyright (C) International Business Machines Corp., 2000-2001
 4 *   Portions Copyright (C) Christoph Hellwig, 2001-2002
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 5 */
 6#ifndef _H_JFS_LOCK
 7#define _H_JFS_LOCK
 8
 9#include <linux/spinlock.h>
10#include <linux/mutex.h>
11#include <linux/sched.h>
12
13/*
14 *	jfs_lock.h
15 */
16
17/*
18 * Conditional sleep where condition is protected by spinlock
19 *
20 * lock_cmd and unlock_cmd take and release the spinlock
21 */
22#define __SLEEP_COND(wq, cond, lock_cmd, unlock_cmd)	\
23do {							\
24	DECLARE_WAITQUEUE(__wait, current);		\
25							\
26	add_wait_queue(&wq, &__wait);			\
27	for (;;) {					\
28		set_current_state(TASK_UNINTERRUPTIBLE);\
29		if (cond)				\
30			break;				\
31		unlock_cmd;				\
32		io_schedule();				\
33		lock_cmd;				\
34	}						\
35	__set_current_state(TASK_RUNNING);			\
36	remove_wait_queue(&wq, &__wait);		\
37} while (0)
38
39#endif				/* _H_JFS_LOCK */

 
 1/*
 2 *   Copyright (C) International Business Machines Corp., 2000-2001
 3 *   Portions Copyright (C) Christoph Hellwig, 2001-2002
 4 *
 5 *   This program is free software;  you can redistribute it and/or modify
 6 *   it under the terms of the GNU General Public License as published by
 7 *   the Free Software Foundation; either version 2 of the License, or
 8 *   (at your option) any later version.
 9 *
10 *   This program is distributed in the hope that it will be useful,
11 *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
12 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
13 *   the GNU General Public License for more details.
14 *
15 *   You should have received a copy of the GNU General Public License
16 *   along with this program;  if not, write to the Free Software
17 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19#ifndef _H_JFS_LOCK
20#define _H_JFS_LOCK
21
22#include <linux/spinlock.h>
23#include <linux/mutex.h>
24#include <linux/sched.h>
25
26/*
27 *	jfs_lock.h
28 */
29
30/*
31 * Conditional sleep where condition is protected by spinlock
32 *
33 * lock_cmd and unlock_cmd take and release the spinlock
34 */
35#define __SLEEP_COND(wq, cond, lock_cmd, unlock_cmd)	\
36do {							\
37	DECLARE_WAITQUEUE(__wait, current);		\
38							\
39	add_wait_queue(&wq, &__wait);			\
40	for (;;) {					\
41		set_current_state(TASK_UNINTERRUPTIBLE);\
42		if (cond)				\
43			break;				\
44		unlock_cmd;				\
45		io_schedule();				\
46		lock_cmd;				\
47	}						\
48	__set_current_state(TASK_RUNNING);			\
49	remove_wait_queue(&wq, &__wait);		\
50} while (0)
51
52#endif				/* _H_JFS_LOCK */