1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * linux/include/linux/nfs_fs.h 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 1992 Rick Sladkey 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * OS-specific nfs filesystem definitions and declarations 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifndef _UAPI_LINUX_NFS_FS_H 11*4882a593Smuzhiyun #define _UAPI_LINUX_NFS_FS_H 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include <linux/magic.h> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /* Default timeout values */ 16*4882a593Smuzhiyun #define NFS_DEF_UDP_TIMEO (11) 17*4882a593Smuzhiyun #define NFS_DEF_UDP_RETRANS (3) 18*4882a593Smuzhiyun #define NFS_DEF_TCP_TIMEO (600) 19*4882a593Smuzhiyun #define NFS_DEF_TCP_RETRANS (2) 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #define NFS_MAX_UDP_TIMEOUT (60*HZ) 22*4882a593Smuzhiyun #define NFS_MAX_TCP_TIMEOUT (600*HZ) 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #define NFS_DEF_ACREGMIN (3) 25*4882a593Smuzhiyun #define NFS_DEF_ACREGMAX (60) 26*4882a593Smuzhiyun #define NFS_DEF_ACDIRMIN (30) 27*4882a593Smuzhiyun #define NFS_DEF_ACDIRMAX (60) 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun /* 30*4882a593Smuzhiyun * When flushing a cluster of dirty pages, there can be different 31*4882a593Smuzhiyun * strategies: 32*4882a593Smuzhiyun */ 33*4882a593Smuzhiyun #define FLUSH_SYNC 1 /* file being synced, or contention */ 34*4882a593Smuzhiyun #define FLUSH_STABLE 4 /* commit to stable storage */ 35*4882a593Smuzhiyun #define FLUSH_LOWPRI 8 /* low priority background flush */ 36*4882a593Smuzhiyun #define FLUSH_HIGHPRI 16 /* high priority memory reclaim flush */ 37*4882a593Smuzhiyun #define FLUSH_COND_STABLE 32 /* conditional stable write - only stable 38*4882a593Smuzhiyun * if everything fits in one RPC */ 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun /* 42*4882a593Smuzhiyun * NFS debug flags 43*4882a593Smuzhiyun */ 44*4882a593Smuzhiyun #define NFSDBG_VFS 0x0001 45*4882a593Smuzhiyun #define NFSDBG_DIRCACHE 0x0002 46*4882a593Smuzhiyun #define NFSDBG_LOOKUPCACHE 0x0004 47*4882a593Smuzhiyun #define NFSDBG_PAGECACHE 0x0008 48*4882a593Smuzhiyun #define NFSDBG_PROC 0x0010 49*4882a593Smuzhiyun #define NFSDBG_XDR 0x0020 50*4882a593Smuzhiyun #define NFSDBG_FILE 0x0040 51*4882a593Smuzhiyun #define NFSDBG_ROOT 0x0080 52*4882a593Smuzhiyun #define NFSDBG_CALLBACK 0x0100 53*4882a593Smuzhiyun #define NFSDBG_CLIENT 0x0200 54*4882a593Smuzhiyun #define NFSDBG_MOUNT 0x0400 55*4882a593Smuzhiyun #define NFSDBG_FSCACHE 0x0800 56*4882a593Smuzhiyun #define NFSDBG_PNFS 0x1000 57*4882a593Smuzhiyun #define NFSDBG_PNFS_LD 0x2000 58*4882a593Smuzhiyun #define NFSDBG_STATE 0x4000 59*4882a593Smuzhiyun #define NFSDBG_XATTRCACHE 0x8000 60*4882a593Smuzhiyun #define NFSDBG_ALL 0xFFFF 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun #endif /* _UAPI_LINUX_NFS_FS_H */ 64