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Not used in vfs.

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This commit is contained in:
Ben Gras 2007-06-06 14:48:18 +00:00
parent 1560fc9b94
commit 26cf8b90ea
3 changed files with 0 additions and 104 deletions
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1
servers/vfs/const.h
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@ -86,7 +86,6 @@
#define DIR_ENTRY_SIZE usizeof (struct direct) /* # bytes/dir entry */ #define DIR_ENTRY_SIZE usizeof (struct direct) /* # bytes/dir entry */
#define NR_DIR_ENTRIES(b) ((b)/DIR_ENTRY_SIZE) /* # dir entries/blk */ #define NR_DIR_ENTRIES(b) ((b)/DIR_ENTRY_SIZE) /* # dir entries/blk */
#define SUPER_SIZE usizeof (struct super_block) /* super_block size */
#define PIPE_SIZE(b) (V1_NR_DZONES*(b)) /* pipe size in bytes */ #define PIPE_SIZE(b) (V1_NR_DZONES*(b)) /* pipe size in bytes */
#define FS_BITMAP_CHUNKS(b) ((b)/usizeof (bitchunk_t))/* # map chunks/blk */ #define FS_BITMAP_CHUNKS(b) ((b)/usizeof (bitchunk_t))/* # map chunks/blk */

44
servers/vfs/inode.h
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@ -1,44 +0,0 @@
/* Inode table. This table holds inodes that are currently in use. In some
* cases they have been opened by an open() or creat() system call, in other
* cases the file system itself needs the inode for one reason or another,
* such as to search a directory for a path name.
* The first part of the struct holds fields that are present on the
* disk; the second part holds fields not present on the disk.
* The disk inode part is also declared in "type.h" as 'd1_inode' for V1
* file systems and 'd2_inode' for V2 file systems.
*/
EXTERN struct inode {
mode_t i_mode; /* file type, protection, etc. */
nlink_t i_nlinks; /* how many links to this file */
uid_t i_uid; /* user id of the file's owner */
gid_t i_gid; /* group number */
off_t i_size; /* current file size in bytes */
time_t i_atime; /* time of last access (V2 only) */
time_t i_mtime; /* when was file data last changed */
time_t i_ctime; /* when was inode itself changed (V2 only)*/
zone_t i_zone[V2_NR_TZONES]; /* zone numbers for direct, ind, and dbl ind */
/* The following items are not present on the disk. */
dev_t i_dev; /* which device is the inode on */
ino_t i_num; /* inode number on its (minor) device */
int i_count; /* # times inode used; 0 means slot is free */
int i_ndzones; /* # direct zones (Vx_NR_DZONES) */
int i_nindirs; /* # indirect zones per indirect block */
struct super_block *i_sp; /* pointer to super block for inode's device */
char i_dirt; /* CLEAN or DIRTY */
char i_pipe; /* set to I_PIPE if pipe */
char i_mount; /* this bit is set if file mounted on */
char i_seek; /* set on LSEEK, cleared on READ/WRITE */
char i_update; /* the ATIME, CTIME, and MTIME bits are here */
} inode[NR_INODES];
#define NIL_INODE (struct inode *) 0 /* indicates absence of inode slot */
/* Field values. Note that CLEAN and DIRTY are defined in "const.h" */
#define NO_PIPE 0 /* i_pipe is NO_PIPE if inode is not a pipe */
#define I_PIPE 1 /* i_pipe is I_PIPE if inode is a pipe */
#define NO_MOUNT 0 /* i_mount is NO_MOUNT if file not mounted on*/
#define I_MOUNT 1 /* i_mount is I_MOUNT if file mounted on */
#define NO_SEEK 0 /* i_seek = NO_SEEK if last op was not SEEK */
#define ISEEK 1 /* i_seek = ISEEK if last op was SEEK */

59
servers/vfs/super.h
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@ -1,59 +0,0 @@
/* Super block table. The root file system and every mounted file system
* has an entry here. The entry holds information about the sizes of the bit
* maps and inodes. The s_ninodes field gives the number of inodes available
* for files and directories, including the root directory. Inode 0 is
* on the disk, but not used. Thus s_ninodes = 4 means that 5 bits will be
* used in the bit map, bit 0, which is always 1 and not used, and bits 1-4
* for files and directories. The disk layout is:
*
* Item # blocks
* boot block 1
* super block 1 (offset 1kB)
* inode map s_imap_blocks
* zone map s_zmap_blocks
* inodes (s_ninodes + 'inodes per block' - 1)/'inodes per block'
* unused whatever is needed to fill out the current zone
* data zones (s_zones - s_firstdatazone) << s_log_zone_size
*
* A super_block slot is free if s_dev == NO_DEV.
*/
EXTERN struct super_block {
ino_t s_ninodes; /* # usable inodes on the minor device */
zone1_t s_nzones; /* total device size, including bit maps etc */
short s_imap_blocks; /* # of blocks used by inode bit map */
short s_zmap_blocks; /* # of blocks used by zone bit map */
zone1_t s_firstdatazone; /* number of first data zone */
short s_log_zone_size; /* log2 of blocks/zone */
short s_pad; /* try to avoid compiler-dependent padding */
off_t s_max_size; /* maximum file size on this device */
zone_t s_zones; /* number of zones (replaces s_nzones in V2) */
short s_magic; /* magic number to recognize super-blocks */
/* The following items are valid on disk only for V3 and above */
/* The block size in bytes. Minimum MIN_BLOCK SIZE. SECTOR_SIZE
* multiple. If V1 or V2 filesystem, this should be
* initialised to STATIC_BLOCK_SIZE. Maximum MAX_BLOCK_SIZE.
*/
short s_pad2; /* try to avoid compiler-dependent padding */
unsigned short s_block_size; /* block size in bytes. */
char s_disk_version; /* filesystem format sub-version */
/* The following items are only used when the super_block is in memory. */
struct inode *s_isup; /* inode for root dir of mounted file sys */
struct inode *s_imount; /* inode mounted on */
unsigned s_inodes_per_block; /* precalculated from magic number */
dev_t s_dev; /* whose super block is this? */
int s_rd_only; /* set to 1 iff file sys mounted read only */
int s_native; /* set to 1 iff not byte swapped file system */
int s_version; /* file system version, zero means bad magic */
int s_ndzones; /* # direct zones in an inode */
int s_nindirs; /* # indirect zones per indirect block */
bit_t s_isearch; /* inodes below this bit number are in use */
bit_t s_zsearch; /* all zones below this bit number are in use*/
} super_block[NR_SUPERS];
#define NIL_SUPER (struct super_block *) 0
#define IMAP 0 /* operating on the inode bit map */
#define ZMAP 1 /* operating on the zone bit map */