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 56#define NFSDBG_PNFS 0x1000 57#define NFSDBG_PNFS_LD 0x2000 58#define NFSDBG_STATE 0x4000 59#define NFSDBG_ALL 0xFFFF 60 61 62#endif /* _UAPI_LINUX_NFS_FS_H */ 63