1 /* 2 * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. 3 * Copyright (C) 2007 The Regents of the University of California. 4 * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). 5 * Written by Brian Behlendorf <behlendorf1@llnl.gov>. 6 * UCRL-CODE-235197 7 * 8 * This file is part of the SPL, Solaris Porting Layer. 9 * For details, see <http://zfsonlinux.org/>. 10 * 11 * The SPL is free software; you can redistribute it and/or modify it 12 * under the terms of the GNU General Public License as published by the 13 * Free Software Foundation; either version 2 of the License, or (at your 14 * option) any later version. 15 * 16 * The SPL is distributed in the hope that it will be useful, but WITHOUT 17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 19 * for more details. 20 * 21 * You should have received a copy of the GNU General Public License along 22 * with the SPL. If not, see <http://www.gnu.org/licenses/>. 23 */ 24 25 #ifndef _SPL_CALLB_H 26 #define _SPL_CALLB_H 27 28 #include <linux/module.h> 29 #include <sys/mutex.h> 30 31 #define CALLB_CPR_ASSERT(cp) ASSERT(MUTEX_HELD((cp)->cc_lockp)); 32 33 typedef struct callb_cpr { 34 kmutex_t *cc_lockp; 35 } callb_cpr_t; 36 37 #define CALLB_CPR_INIT(cp, lockp, func, name) { \ 38 (cp)->cc_lockp = lockp; \ 39 } 40 41 #define CALLB_CPR_SAFE_BEGIN(cp) { \ 42 CALLB_CPR_ASSERT(cp); \ 43 } 44 45 #define CALLB_CPR_SAFE_END(cp, lockp) { \ 46 CALLB_CPR_ASSERT(cp); \ 47 } 48 49 #define CALLB_CPR_EXIT(cp) { \ 50 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 51 mutex_exit((cp)->cc_lockp); \ 52 } 53 54 #endif /* _SPL_CALLB_H */ 55