mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-02 06:36:43 +07:00
7b71876980
boilerplate. SGI-PV: 913862 SGI-Modid: xfs-linux:xfs-kern:23903a Signed-off-by: Nathan Scott <nathans@sgi.com>
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
/*
|
|
* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
|
|
* All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it would 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 for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
#ifndef __XFS_SUPPORT_MUTEX_H__
|
|
#define __XFS_SUPPORT_MUTEX_H__
|
|
|
|
#include <linux/spinlock.h>
|
|
#include <asm/semaphore.h>
|
|
|
|
/*
|
|
* Map the mutex'es from IRIX to Linux semaphores.
|
|
*
|
|
* Destroy just simply initializes to -99 which should block all other
|
|
* callers.
|
|
*/
|
|
#define MUTEX_DEFAULT 0x0
|
|
typedef struct semaphore mutex_t;
|
|
|
|
#define mutex_init(lock, type, name) sema_init(lock, 1)
|
|
#define mutex_destroy(lock) sema_init(lock, -99)
|
|
#define mutex_lock(lock, num) down(lock)
|
|
#define mutex_trylock(lock) (down_trylock(lock) ? 0 : 1)
|
|
#define mutex_unlock(lock) up(lock)
|
|
|
|
#endif /* __XFS_SUPPORT_MUTEX_H__ */
|