BBSIZE
#ifndef BBSIZE
sblock.e2fs.e2fs_first_dblock = (sblock.e2fs_bsize > BBSIZE) ? 0 : 1;
#define LABEL_SIZE BBSIZE
error = bread(devvp, BBLOCK, BBSIZE, &bp);
#define SBOFF ((off_t)(BBOFF + BBSIZE))
#define SBLOCK ((daddr_t)(BBLOCK + BBSIZE / DEV_BSIZE))
#define SBOFF ((off_t)(BBOFF + BBSIZE))
#define SBLOCK ((daddr_t)(BBLOCK + BBSIZE / DEV_BSIZE))
if (bootsize > BBSIZE)
bbsize = BBSIZE;