1 /* 2 * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved. 3 * 4 * This copyrighted material is made available to anyone wishing to use, 5 * modify, copy, or redistribute it subject to the terms and conditions 6 * of the GNU General Public License v.2. 7 */ 8 9 #ifndef __DLM_PLOCK_DOT_H__ 10 #define __DLM_PLOCK_DOT_H__ 11 12 #define DLM_PLOCK_MISC_NAME "dlm_plock" 13 14 #define DLM_PLOCK_VERSION_MAJOR 1 15 #define DLM_PLOCK_VERSION_MINOR 1 16 #define DLM_PLOCK_VERSION_PATCH 0 17 18 enum { 19 DLM_PLOCK_OP_LOCK = 1, 20 DLM_PLOCK_OP_UNLOCK, 21 DLM_PLOCK_OP_GET, 22 }; 23 24 struct dlm_plock_info { 25 __u32 version[3]; 26 __u8 optype; 27 __u8 ex; 28 __u8 wait; 29 __u8 pad; 30 __u32 pid; 31 __s32 nodeid; 32 __s32 rv; 33 __u32 fsid; 34 __u64 number; 35 __u64 start; 36 __u64 end; 37 __u64 owner; 38 }; 39 40 #ifdef __KERNEL__ 41 int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file, 42 int cmd, struct file_lock *fl); 43 int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file, 44 struct file_lock *fl); 45 int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file, 46 struct file_lock *fl); 47 #endif /* __KERNEL__ */ 48 49 #endif 50 51