static int check_geom(struct device *dev, int media, struct bootsector *boot)
{
int sect;
if(media >= 0xfc && media <= 0xff)
return 1; /* old DOS */
if (!IS_MFORMAT_ONLY(dev)) {
if(compare(dev->sectors, 19) &&
compare(dev->sectors, 23) &&
compare(dev->sectors, 24) &&
compare(dev->sectors, 46) &&
compare(dev->sectors, 48))
return 1;
/* check against contradictory info from configuration file */
if(compare(dev->heads, 2))
return 1;
}
/* check against info from boot */
if(boot) {
sect = WORD(nsect);
if((sect != 19 && sect != 23 && sect != 24 &&
sect != 46 && sect != 48) ||
(!IS_MFORMAT_ONLY(dev) && compare(dev->sectors, sect)) ||
WORD(nheads) !=2)
return 1;
}
return 0;
}
static int compare_geom(struct device *dev, struct device *orig_dev)
{
if(IS_MFORMAT_ONLY(orig_dev))
return 0; /* geometry only for mformatting ==> ok */
if(!orig_dev || !orig_dev->tracks || !dev || !dev->tracks)
return 0; /* no original device. This is ok */
return(orig_dev->tracks != dev->tracks ||
orig_dev->heads != dev->heads ||
orig_dev->sectors != dev->sectors);
}
