From 01c18c78bb12679c65c64f3bcc2bfca6df52de80 Mon Sep 17 00:00:00 2001 From: "Michael I. Bushnell" Date: Fri, 15 Jul 1994 17:45:34 +0000 Subject: entered into RCS --- ufs/fs.h | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) (limited to 'ufs/fs.h') diff --git a/ufs/fs.h b/ufs/fs.h index 7a4e6d7c..a2a3cc9b 100644 --- a/ufs/fs.h +++ b/ufs/fs.h @@ -83,6 +83,16 @@ * to determine block availability, aligned fragments are examined. */ +/* + * The file system is made out of blocks of at most MAXBSIZE units, with + * smaller units (fragments) only in the last direct block. MAXBSIZE + * primarily determines the size of buffers in the buffer pool. It may be + * made larger without any effect on existing file systems; however making + * it smaller make make some file systems unmountable. + */ +#define MAXBSIZE MAXPHYS +#define MAXFRAG 8 + /* * MINBSIZE is the smallest allowable block size. * In order to insure that it is possible to create files of size @@ -465,14 +475,18 @@ struct ocg { /* * Determining the size of a file block in the file system. */ -#define blksize(fs, ip, lbn) \ - (((lbn) >= NDADDR || (ip)->i_size >= ((lbn) + 1) << (fs)->fs_bshift) \ +/* Changed from BSD to use allocsize instead of i_size. */ +#define blksize(fs, np, lbn) \ + (((lbn) >= NDADDR || (np)->allocsize >= ((lbn) + 1) << (fs)->fs_bshift) \ ? (fs)->fs_bsize \ - : (fragroundup(fs, blkoff(fs, (ip)->i_size)))) + : (fragroundup(fs, blkoff(fs, (np)->allocsize)))) + +#if 0 /* Don't use this */ #define dblksize(fs, dip, lbn) \ (((lbn) >= NDADDR || (dip)->di_size >= ((lbn) + 1) << (fs)->fs_bshift) \ ? (fs)->fs_bsize \ : (fragroundup(fs, blkoff(fs, (dip)->di_size)))) +#endif /* * Number of disk sectors per block; assumes DEV_BSIZE byte sector size. -- cgit v1.2.3