include/uapi/linux/nfs_fs.h

   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 */