minix/servers/vfs/vmnt.h

   1 #ifndef __VFS_VMNT_H__
   2 #define __VFS_VMNT_H__
   3
   4 #include "tll.h"
   5 #include "type.h"
   6
   7 EXTERN struct vmnt {
   8   int m_fs_e;                   /* FS process' kernel endpoint */
   9   tll_t m_lock;
  10   comm_t m_comm;
  11   dev_t m_dev;                  /* device number */
  12   unsigned int m_flags;         /* mount flags */
  13   unsigned int m_fs_flags;      /* capability flags returned by FS */
  14   struct vnode *m_mounted_on;   /* vnode on which the partition is mounted */
  15   struct vnode *m_root_node;    /* root vnode */
  16   char m_label[LABEL_MAX];      /* label of the file system process */
  17   char m_mount_path[PATH_MAX];  /* path on which vmnt is mounted */
  18   char m_mount_dev[PATH_MAX];   /* device from which vmnt is mounted */
  19   char m_fstype[FSTYPE_MAX];    /* file system type */
  20   struct statvfs_cache m_stats; /* cached file system statistics */
  21 } vmnt[NR_MNTS];
  22
  23 /* vmnt flags */
  24 #define VMNT_READONLY           01      /* Device mounted readonly */
  25 #define VMNT_CALLBACK           02      /* FS did back call */
  26 #define VMNT_MOUNTING           04      /* Device is being mounted */
  27 #define VMNT_FORCEROOTBSF       010     /* Force usage of none-device */
  28 #define VMNT_CANSTAT            020     /* Include FS in getvfsstat output */
  29
  30 /* vmnt lock types mapping */
  31 #define VMNT_READ TLL_READ
  32 #define VMNT_WRITE TLL_READSER
  33 #define VMNT_EXCL TLL_WRITE
  34
  35 #endif