servers/pfs/inode.h

   1 /* Inode table.  This table holds inodes that are currently in use.
   2  */
   3
   4 #include <sys/queue.h>
   5
   6 EXTERN struct inode {
   7   mode_t i_mode;                /* file type, protection, etc. */
   8   nlink_t i_nlinks;             /* how many links to this file */
   9   uid_t i_uid;                  /* user id of the file's owner */
  10   gid_t i_gid;                  /* group number */
  11   off_t i_size;                 /* current file size in bytes */
  12   time_t i_atime;               /* time of last access (V2 only) */
  13   time_t i_mtime;               /* when was file data last changed */
  14   time_t i_ctime;               /* when was inode itself changed (V2 only)*/
  15
  16   /* The following items are not present on the disk. */
  17   dev_t i_dev;                  /* which device is the inode on */
  18   ino_t i_num;                  /* inode number on its (minor) device */
  19   int i_count;                  /* # times inode used; 0 means slot is free */
  20   char i_update;                /* the ATIME, CTIME, and MTIME bits are here */
  21
  22   LIST_ENTRY(inode) i_hash;     /* hash list */
  23   TAILQ_ENTRY(inode) i_unused;  /* free and unused list */
  24
  25
  26 } inode[NR_INODES];
  27
  28 /* list of unused/free inodes */
  29 EXTERN TAILQ_HEAD(unused_inodes_t, inode)  unused_inodes;
  30
  31 /* inode hashtable */
  32 EXTERN LIST_HEAD(inodelist, inode)         hash_inodes[INODE_HASH_SIZE];
  33
  34 #define NIL_INODE (struct inode *) 0    /* indicates absence of inode slot */
  35