linux-headers (unknown)
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 _LINUX_NFS_FS_H
11 #define _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 /* _LINUX_NFS_FS_H */
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