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