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Linux/include/linux/lockd/nlm.h

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  1 /*
  2  * linux/include/linux/lockd/nlm.h
  3  *
  4  * Declarations for the Network Lock Manager protocol.
  5  *
  6  * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
  7  */
  8 
  9 #ifndef LINUX_LOCKD_NLM_H
 10 #define LINUX_LOCKD_NLM_H
 11 
 12 
 13 /* Maximum file offset in file_lock.fl_end */
 14 # define NLM_OFFSET_MAX         ((s32) 0x7fffffff)
 15 # define NLM4_OFFSET_MAX        ((s64) ((~(u64)0) >> 1))
 16 
 17 /* Return states for NLM */
 18 enum {
 19         NLM_LCK_GRANTED                 = 0,
 20         NLM_LCK_DENIED                  = 1,
 21         NLM_LCK_DENIED_NOLOCKS          = 2,
 22         NLM_LCK_BLOCKED                 = 3,
 23         NLM_LCK_DENIED_GRACE_PERIOD     = 4,
 24 #ifdef CONFIG_LOCKD_V4
 25         NLM_DEADLCK                     = 5,
 26         NLM_ROFS                        = 6,
 27         NLM_STALE_FH                    = 7,
 28         NLM_FBIG                        = 8,
 29         NLM_FAILED                      = 9,
 30 #endif
 31 };
 32 
 33 #define NLM_PROGRAM             100021
 34 
 35 #define NLMPROC_NULL            0
 36 #define NLMPROC_TEST            1
 37 #define NLMPROC_LOCK            2
 38 #define NLMPROC_CANCEL          3
 39 #define NLMPROC_UNLOCK          4
 40 #define NLMPROC_GRANTED         5
 41 #define NLMPROC_TEST_MSG        6
 42 #define NLMPROC_LOCK_MSG        7
 43 #define NLMPROC_CANCEL_MSG      8
 44 #define NLMPROC_UNLOCK_MSG      9
 45 #define NLMPROC_GRANTED_MSG     10
 46 #define NLMPROC_TEST_RES        11
 47 #define NLMPROC_LOCK_RES        12
 48 #define NLMPROC_CANCEL_RES      13
 49 #define NLMPROC_UNLOCK_RES      14
 50 #define NLMPROC_GRANTED_RES     15
 51 #define NLMPROC_NSM_NOTIFY      16              /* statd callback */
 52 #define NLMPROC_SHARE           20
 53 #define NLMPROC_UNSHARE         21
 54 #define NLMPROC_NM_LOCK         22
 55 #define NLMPROC_FREE_ALL        23
 56 
 57 #endif /* LINUX_LOCKD_NLM_H */
 58 

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