mirror of
https://github.com/torvalds/linux.git
synced 2026-05-12 16:18:45 +02:00
5829352e56
The NLM protocol constants and status codes in nlm.h are needed only by lockd's internal implementation. NFS client code and NFSD interact with lockd through the stable API in bind.h and have no direct use for protocol-level definitions. Exposing these definitions globally via bind.h creates unnecessary coupling between lockd internals and its consumers. Moving nlm.h from include/linux/lockd/ to fs/lockd/ clarifies the API boundary: bind.h provides the lockd service interface, while nlm.h remains available only to code within fs/lockd/ that implements the protocol. Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Declarations for the Network Lock Manager protocol.
|
|
*
|
|
* Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
|
|
*/
|
|
|
|
#ifndef _LOCKD_NLM_H
|
|
#define _LOCKD_NLM_H
|
|
|
|
|
|
/* Maximum file offset in file_lock.fl_end */
|
|
# define NLM_OFFSET_MAX ((s32) 0x7fffffff)
|
|
# define NLM4_OFFSET_MAX ((s64) ((~(u64)0) >> 1))
|
|
|
|
/* Return states for NLM */
|
|
enum {
|
|
NLM_LCK_GRANTED = 0,
|
|
NLM_LCK_DENIED = 1,
|
|
NLM_LCK_DENIED_NOLOCKS = 2,
|
|
NLM_LCK_BLOCKED = 3,
|
|
NLM_LCK_DENIED_GRACE_PERIOD = 4,
|
|
#ifdef CONFIG_LOCKD_V4
|
|
NLM_DEADLCK = 5,
|
|
NLM_ROFS = 6,
|
|
NLM_STALE_FH = 7,
|
|
NLM_FBIG = 8,
|
|
NLM_FAILED = 9,
|
|
#endif
|
|
};
|
|
|
|
#define NLM_PROGRAM 100021
|
|
|
|
#define NLMPROC_NULL 0
|
|
#define NLMPROC_TEST 1
|
|
#define NLMPROC_LOCK 2
|
|
#define NLMPROC_CANCEL 3
|
|
#define NLMPROC_UNLOCK 4
|
|
#define NLMPROC_GRANTED 5
|
|
#define NLMPROC_TEST_MSG 6
|
|
#define NLMPROC_LOCK_MSG 7
|
|
#define NLMPROC_CANCEL_MSG 8
|
|
#define NLMPROC_UNLOCK_MSG 9
|
|
#define NLMPROC_GRANTED_MSG 10
|
|
#define NLMPROC_TEST_RES 11
|
|
#define NLMPROC_LOCK_RES 12
|
|
#define NLMPROC_CANCEL_RES 13
|
|
#define NLMPROC_UNLOCK_RES 14
|
|
#define NLMPROC_GRANTED_RES 15
|
|
#define NLMPROC_NSM_NOTIFY 16 /* statd callback */
|
|
#define NLMPROC_SHARE 20
|
|
#define NLMPROC_UNSHARE 21
|
|
#define NLMPROC_NM_LOCK 22
|
|
#define NLMPROC_FREE_ALL 23
|
|
|
|
#endif /* _LOCKD_NLM_H */
|