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-rw-r--r--sys/ufs/ffs/fs.h36
1 files changed, 18 insertions, 18 deletions
diff --git a/sys/ufs/ffs/fs.h b/sys/ufs/ffs/fs.h
index 64e93964810..d46d09641c3 100644
--- a/sys/ufs/ffs/fs.h
+++ b/sys/ufs/ffs/fs.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: fs.h,v 1.24 2006/04/12 03:46:52 tedu Exp $ */
+/* $OpenBSD: fs.h,v 1.25 2007/01/07 15:37:23 sturm Exp $ */
/* $NetBSD: fs.h,v 1.6 1995/04/12 21:21:02 mycroft Exp $ */
/*
@@ -173,31 +173,31 @@ struct csum {
struct fs {
int32_t fs_firstfield; /* historic file system linked list, */
int32_t fs_unused_1; /* used for incore super blocks */
- int32_t fs_sblkno; /* addr of super-block in filesys */
- int32_t fs_cblkno; /* offset of cyl-block in filesys */
- int32_t fs_iblkno; /* offset of inode-blocks in filesys */
- int32_t fs_dblkno; /* offset of first data after cg */
+ int32_t fs_sblkno; /* addr of super-block / frags */
+ int32_t fs_cblkno; /* offset of cyl-block / frags */
+ int32_t fs_iblkno; /* offset of inode-blocks / frags */
+ int32_t fs_dblkno; /* offset of first data / frags */
int32_t fs_cgoffset; /* cylinder group offset in cylinder */
int32_t fs_cgmask; /* used to calc mod fs_ntrak */
time_t fs_time; /* last time written */
- int32_t fs_size; /* number of blocks in fs */
- int32_t fs_dsize; /* number of data blocks in fs */
- int32_t fs_ncg; /* number of cylinder groups */
- int32_t fs_bsize; /* size of basic blocks in fs */
- int32_t fs_fsize; /* size of frag blocks in fs */
- int32_t fs_frag; /* number of frags in a block in fs */
+ int32_t fs_size; /* # of blocks in fs / frags */
+ int32_t fs_dsize; /* # of data blocks in fs */
+ int32_t fs_ncg; /* # of cylinder groups */
+ int32_t fs_bsize; /* size of basic blocks / bytes */
+ int32_t fs_fsize; /* size of frag blocks / bytes */
+ int32_t fs_frag; /* # of frags in a block in fs */
/* these are configuration parameters */
int32_t fs_minfree; /* minimum percentage of free blocks */
- int32_t fs_rotdelay; /* num of ms for optimal next block */
+ int32_t fs_rotdelay; /* # of ms for optimal next block */
int32_t fs_rps; /* disk revolutions per second */
/* these fields can be computed from the others */
int32_t fs_bmask; /* ``blkoff'' calc of blk offsets */
int32_t fs_fmask; /* ``fragoff'' calc of frag offsets */
int32_t fs_bshift; /* ``lblkno'' calc of logical blkno */
- int32_t fs_fshift; /* ``numfrags'' calc number of frags */
+ int32_t fs_fshift; /* ``numfrags'' calc # of frags */
/* these are configuration parameters */
- int32_t fs_maxcontig; /* max number of contiguous blks */
- int32_t fs_maxbpg; /* max number of blks per cyl group */
+ int32_t fs_maxcontig; /* max # of contiguous blks */
+ int32_t fs_maxbpg; /* max # of blks per cyl group */
/* these fields can be computed from the others */
int32_t fs_fragshift; /* block to frag shift */
int32_t fs_fsbtodb; /* fsbtodb and dbtofsb shift constant */
@@ -217,8 +217,8 @@ struct fs {
int32_t fs_id[2]; /* unique filesystem id */
/* sizes determined by number of cylinder groups and their sizes */
int32_t fs_csaddr; /* blk addr of cyl grp summary area */
- int32_t fs_cssize; /* size of cyl grp summary area */
- int32_t fs_cgsize; /* cylinder group size */
+ int32_t fs_cssize; /* cyl grp summary area size / bytes */
+ int32_t fs_cgsize; /* cyl grp block size / bytes */
/* these fields are derived from the hardware */
int32_t fs_ntrak; /* tracks per cylinder */
int32_t fs_nsect; /* sectors per track */
@@ -450,7 +450,7 @@ struct ocg {
/*
* Give cylinder group number for a file system block.
- * Give cylinder group block number for a file system block.
+ * Give frag block number in cylinder group for a file system block.
*/
#define dtog(fs, d) ((d) / (fs)->fs_fpg)
#define dtogd(fs, d) ((d) % (fs)->fs_fpg)