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Update to reflect current fs.h.

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This commit is contained in:
Mike Pritchard 1997-01-28 07:25:18 +00:00
parent ac7636cbfc
commit 2c18ef217f
1 changed files with 21 additions and 2 deletions
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23
share/man/man5/fs.5
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@ -71,7 +71,6 @@ The following structure described the super-block and is
from the file
.Aq Pa ufs/ffs/fs.h :
.Bd -literal
#define FS_MAGIC 0x011954
struct fs {
struct fs *fs_link; /* linked list of file systems */
struct fs *fs_rlink; /* used for incore super blocks */
@ -144,7 +143,9 @@ struct fs {
struct csum *fs_csp[MAXCSBUFS]; /* list of fs_cs info buffers */
long fs_cpc; /* cyl per cycle in postbl */
short fs_opostbl[16][8]; /* old rotation block list head */
long fs_sparecon[56]; /* reserved for future constants */
long fs_sparecon[50]; /* reserved for future constants */
long fs_contigsumsize;/* size of cluster summary array */
u_quad_t fs_maxfilesize;/* maximum representable file size */
quad fs_qbmask; /* ~fs_bmask - for use with quad size */
quad fs_qfmask; /* ~fs_fmask - for use with quad size */
long fs_postblformat; /* format of positional layout tables */
@ -155,6 +156,24 @@ struct fs {
u_char fs_space[1]; /* list of blocks for each rotation */
/* actually longer */
};
/*
* Filesystem identification
*/
#define FS_MAGIC 0x011954 /* the fast filesystem magic number */
#define FS_OKAY 0x7c269d38 /* superblock checksum */
#define FS_42INODEFMT -1 /* 4.2BSD inode format */
#define FS_44INODEFMT 2 /* 4.4BSD inode format */
/*
* Preference for optimization.
*/
#define FS_OPTTIME 0 /* minimize allocation time */
#define FS_OPTSPACE 1 /* minimize disk fragmentation */
/*
* Rotational layout table format types
*/
#define FS_42POSTBLFMT -1 /* 4.2BSD rotational table format */
#define FS_DYNAMICPOSTBLFMT 1 /* dynamic rotational table format */
.Ed
.Pp
Each disk drive contains some number of file systems.