00001 /* 00002 * Copyright(c) Siemens AG, Muenchen, Germany, 2005, 2006, 2007 00003 * Bernhard Walle <bernhard.walle@gmx.de> 00004 * Gernot Hillier <gernot.hillier@siemens.com> 00005 * 00006 * ---------------------------------------------------------------------------- 00007 * This program is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License version 2 as 00009 * published by the Free Software Foundation; 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License 00017 * along with this program; if not, write to the Free Software 00018 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00019 * ---------------------------------------------------------------------------- 00020 */ 00021 #include <linux/rwsem.h> 00022 00023 /* ------------------------------------------------------------------------- */ 00024 void init_rwsem_orig(struct rw_semaphore *sem) 00025 { 00026 init_rwsem(sem); 00027 } 00028 00029 /* ------------------------------------------------------------------------- */ 00030 void down_read_orig(struct rw_semaphore *sem) 00031 { 00032 down_read(sem); 00033 } 00034 00035 /* --------------------------------------------------------------------------*/ 00036 int down_read_trylock_orig(struct rw_semaphore *sem) 00037 { 00038 return down_read_trylock(sem); 00039 } 00040 00041 /* ------------------------------------------------------------------------- */ 00042 void up_read_orig(struct rw_semaphore *sem) 00043 { 00044 up_read(sem); 00045 } 00046 00047 /* ------------------------------------------------------------------------- */ 00048 void down_write_orig(struct rw_semaphore *sem) 00049 { 00050 down_write(sem); 00051 } 00052 00053 /* ------------------------------------------------------------------------- */ 00054 int down_write_trylock_orig(struct rw_semaphore *sem) 00055 { 00056 return down_write_trylock(sem); 00057 } 00058 00059 /* ------------------------------------------------------------------------- */ 00060 void up_write_orig(struct rw_semaphore *sem) 00061 { 00062 up_write(sem); 00063 } 00064 00065 /* ------------------------------------------------------------------------- */ 00066 void downgrade_wrte_orig(struct rw_semaphore *sem) 00067 { 00068 downgrade_write(sem); 00069 } 00070