uaccess.h revision 289565
1219820Sjeff/*- 2219820Sjeff * Copyright (c) 2010 Isilon Systems, Inc. 3219820Sjeff * Copyright (c) 2010 iX Systems, Inc. 4219820Sjeff * Copyright (c) 2010 Panasas, Inc. 5289565Shselasky * Copyright (c) 2013-2015 Mellanox Technologies, Ltd. 6289565Shselasky * Copyright (c) 2015 Fran��ois Tigeot 7219820Sjeff * All rights reserved. 8219820Sjeff * 9219820Sjeff * Redistribution and use in source and binary forms, with or without 10219820Sjeff * modification, are permitted provided that the following conditions 11219820Sjeff * are met: 12219820Sjeff * 1. Redistributions of source code must retain the above copyright 13219820Sjeff * notice unmodified, this list of conditions, and the following 14219820Sjeff * disclaimer. 15219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright 16219820Sjeff * notice, this list of conditions and the following disclaimer in the 17219820Sjeff * documentation and/or other materials provided with the distribution. 18219820Sjeff * 19219820Sjeff * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20219820Sjeff * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21219820Sjeff * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22219820Sjeff * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23219820Sjeff * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24219820Sjeff * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25219820Sjeff * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26219820Sjeff * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27219820Sjeff * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28219820Sjeff * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29219820Sjeff */ 30219820Sjeff#ifndef _LINUX_UACCESS_H_ 31219820Sjeff#define _LINUX_UACCESS_H_ 32219820Sjeff 33219820Sjeff#define get_user(_x, _p) -copyin((_p), &(_x), sizeof(*(_p))) 34219820Sjeff#define put_user(_x, _p) -copyout(&(_x), (_p), sizeof(*(_p))) 35219820Sjeff 36289565Shselaskystatic inline void pagefault_disable(void) 37289565Shselasky{ 38289565Shselasky curthread_pflags_set(TDP_NOFAULTING | TDP_RESETSPUR); 39289565Shselasky} 40289565Shselasky 41289565Shselaskystatic inline void pagefault_enable(void) 42289565Shselasky{ 43289565Shselasky curthread_pflags_restore(~(TDP_NOFAULTING | TDP_RESETSPUR)); 44289565Shselasky} 45289565Shselasky 46219820Sjeff#endif /* _LINUX_UACCESS_H_ */ 47