1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/*
3 * linux/include/linux/nfs_fs.h
4 *
5 * Copyright (C) 1992 Rick Sladkey
6 *
7 * OS-specific nfs filesystem definitions and declarations
8 */
9
10#ifndef _UAPI_LINUX_NFS_FS_H
11#define _UAPI_LINUX_NFS_FS_H
12
13#include <linux/magic.h>
14
15/* Default timeout values */
16#define NFS_DEF_UDP_TIMEO (11)
17#define NFS_DEF_UDP_RETRANS (3)
18#define NFS_DEF_TCP_TIMEO (600)
19#define NFS_DEF_TCP_RETRANS (2)
20
21#define NFS_MAX_UDP_TIMEOUT (60*HZ)
22#define NFS_MAX_TCP_TIMEOUT (600*HZ)
23
24#define NFS_DEF_ACREGMIN (3)
25#define NFS_DEF_ACREGMAX (60)
26#define NFS_DEF_ACDIRMIN (30)
27#define NFS_DEF_ACDIRMAX (60)
28
29/*
30 * When flushing a cluster of dirty pages, there can be different
31 * strategies:
32 */
33#define FLUSH_SYNC 1 /* file being synced, or contention */
34#define FLUSH_STABLE 4 /* commit to stable storage */
35#define FLUSH_LOWPRI 8 /* low priority background flush */
36#define FLUSH_HIGHPRI 16 /* high priority memory reclaim flush */
37#define FLUSH_COND_STABLE 32 /* conditional stable write - only stable
38 * if everything fits in one RPC */
39
40
41/*
42 * NFS debug flags
43 */
44#define NFSDBG_VFS 0x0001
45#define NFSDBG_DIRCACHE 0x0002
46#define NFSDBG_LOOKUPCACHE 0x0004
47#define NFSDBG_PAGECACHE 0x0008
48#define NFSDBG_PROC 0x0010
49#define NFSDBG_XDR 0x0020
50#define NFSDBG_FILE 0x0040
51#define NFSDBG_ROOT 0x0080
52#define NFSDBG_CALLBACK 0x0100
53#define NFSDBG_CLIENT 0x0200
54#define NFSDBG_MOUNT 0x0400
55#define NFSDBG_FSCACHE 0x0800 /* unused */
56#define NFSDBG_PNFS 0x1000
57#define NFSDBG_PNFS_LD 0x2000
58#define NFSDBG_STATE 0x4000
59#define NFSDBG_XATTRCACHE 0x8000
60#define NFSDBG_ALL 0xFFFF
61
62
63#endif /* _UAPI_LINUX_NFS_FS_H */
64