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 #include <linux/types.h> 13 14 #define DLM_PLOCK_MISC_NAME "dlm_plock" 15 16 #define DLM_PLOCK_VERSION_MAJOR 1 17 #define DLM_PLOCK_VERSION_MINOR 1 18 #define DLM_PLOCK_VERSION_PATCH 0 19 20 enum { 21 DLM_PLOCK_OP_LOCK = 1, 22 DLM_PLOCK_OP_UNLOCK, 23 DLM_PLOCK_OP_GET, 24 }; 25 26 struct dlm_plock_info { 27 __u32 version[3]; 28 __u8 optype; 29 __u8 ex; 30 __u8 wait; 31 __u8 pad; 32 __u32 pid; 33 __s32 nodeid; 34 __s32 rv; 35 __u32 fsid; 36 __u64 number; 37 __u64 start; 38 __u64 end; 39 __u64 owner; 40 }; 41 42 #ifdef __KERNEL__ 43 int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file, 44 int cmd, struct file_lock *fl); 45 int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file, 46 struct file_lock *fl); 47 int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file, 48 struct file_lock *fl); 49 #endif /* __KERNEL__ */ 50 51 #endif 52 53