18d59ecb2SHans Petter Selasky /*- 28d59ecb2SHans Petter Selasky * Copyright (c) 2010 Isilon Systems, Inc. 38d59ecb2SHans Petter Selasky * Copyright (c) 2010 iX Systems, Inc. 48d59ecb2SHans Petter Selasky * Copyright (c) 2010 Panasas, Inc. 58d59ecb2SHans Petter Selasky * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd. 68d59ecb2SHans Petter Selasky * All rights reserved. 78d59ecb2SHans Petter Selasky * 88d59ecb2SHans Petter Selasky * Redistribution and use in source and binary forms, with or without 98d59ecb2SHans Petter Selasky * modification, are permitted provided that the following conditions 108d59ecb2SHans Petter Selasky * are met: 118d59ecb2SHans Petter Selasky * 1. Redistributions of source code must retain the above copyright 128d59ecb2SHans Petter Selasky * notice unmodified, this list of conditions, and the following 138d59ecb2SHans Petter Selasky * disclaimer. 148d59ecb2SHans Petter Selasky * 2. Redistributions in binary form must reproduce the above copyright 158d59ecb2SHans Petter Selasky * notice, this list of conditions and the following disclaimer in the 168d59ecb2SHans Petter Selasky * documentation and/or other materials provided with the distribution. 178d59ecb2SHans Petter Selasky * 188d59ecb2SHans Petter Selasky * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 198d59ecb2SHans Petter Selasky * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 208d59ecb2SHans Petter Selasky * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 218d59ecb2SHans Petter Selasky * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 228d59ecb2SHans Petter Selasky * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 238d59ecb2SHans Petter Selasky * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 248d59ecb2SHans Petter Selasky * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 258d59ecb2SHans Petter Selasky * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 268d59ecb2SHans Petter Selasky * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 278d59ecb2SHans Petter Selasky * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 288d59ecb2SHans Petter Selasky */ 29307f78f3SVladimir Kondratyev #ifndef _LINUXKPI_LINUX_RWLOCK_H_ 30307f78f3SVladimir Kondratyev #define _LINUXKPI_LINUX_RWLOCK_H_ 318d59ecb2SHans Petter Selasky 328e7baabcSHans Petter Selasky #include <sys/types.h> 338d59ecb2SHans Petter Selasky #include <sys/lock.h> 348d59ecb2SHans Petter Selasky #include <sys/rwlock.h> 351e3db1deSHans Petter Selasky #include <sys/libkern.h> 368d59ecb2SHans Petter Selasky 375c0a1923SEmmanuel Vadot typedef struct rwlock rwlock_t; 388d59ecb2SHans Petter Selasky 395c0a1923SEmmanuel Vadot #define read_lock(_l) rw_rlock(_l) 405c0a1923SEmmanuel Vadot #define write_lock(_l) rw_wlock(_l) 415c0a1923SEmmanuel Vadot #define read_unlock(_l) rw_runlock(_l) 425c0a1923SEmmanuel Vadot #define write_unlock(_l) rw_wunlock(_l) 438d59ecb2SHans Petter Selasky #define read_lock_irq(lock) read_lock((lock)) 448d59ecb2SHans Petter Selasky #define read_unlock_irq(lock) read_unlock((lock)) 458d59ecb2SHans Petter Selasky #define write_lock_irq(lock) write_lock((lock)) 468d59ecb2SHans Petter Selasky #define write_unlock_irq(lock) write_unlock((lock)) 478d59ecb2SHans Petter Selasky #define read_lock_irqsave(lock, flags) \ 488d59ecb2SHans Petter Selasky do {(flags) = 0; read_lock(lock); } while (0) 498d59ecb2SHans Petter Selasky #define write_lock_irqsave(lock, flags) \ 508d59ecb2SHans Petter Selasky do {(flags) = 0; write_lock(lock); } while (0) 518d59ecb2SHans Petter Selasky #define read_unlock_irqrestore(lock, flags) \ 528d59ecb2SHans Petter Selasky do { read_unlock(lock); } while (0) 538d59ecb2SHans Petter Selasky #define write_unlock_irqrestore(lock, flags) \ 548d59ecb2SHans Petter Selasky do { write_unlock(lock); } while (0) 55*a7b222dbSEmmanuel Vadot #define rwlock_init(_l) rw_init_flags(_l, "lnxrw", RW_NOWITNESS | RW_NEW) 568d59ecb2SHans Petter Selasky 57307f78f3SVladimir Kondratyev #endif /* _LINUXKPI_LINUX_RWLOCK_H_ */ 58