/*
* Write disk label back to device after modification.
*/
int
writedisklabel(dev_t dev, void (*strat)(struct buf *), struct disklabel *lp)
{
struct buf *bp = NULL;
int error;
/* get a buffer and initialize it */
bp = geteblk((int)lp->d_secsize);
bp->b_dev = dev;
error = disklabel_bsd_to_om(lp, (struct sun_disklabel *)bp->b_data);
if (error)
goto done;
/* Write out the updated label. */
bp->b_blkno = LABELSECTOR;
bp->b_bcount = lp->d_secsize;
CLR(bp->b_flags, B_READ | B_WRITE | B_DONE);
SET(bp->b_flags, B_BUSY | B_WRITE | B_RAW);
(*strat)(bp);
error = biowait(bp);
done:
if (bp) {
bp->b_flags |= B_INVAL;
brelse(bp);
}
disk_change = 1;
return (error);
}
/*
* Write disk label back to device after modification.
* Current label is already in clp->cd_block[]
*/
int
writedisklabel(dev_t dev, void (*strat)(struct buf *), struct disklabel *lp, struct cpu_disklabel *clp)
{
struct buf *bp;
struct disklabel *dlp;
int error;
/* implant NetBSD disklabel at LABELOFFSET. */
dlp = (struct disklabel *)(clp->cd_block + LABELOFFSET);
*dlp = *lp; /* struct assignment */
error = disklabel_bsd_to_om(lp, clp->cd_block);
if (error)
return (error);
/* Get a buffer and copy the new label into it. */
bp = geteblk((int)lp->d_secsize);
memcpy(bp->b_data, clp->cd_block, sizeof(clp->cd_block));
/* Write out the updated label. */
bp->b_dev = dev;
bp->b_blkno = LABELSECTOR;
bp->b_cylinder = 0;
bp->b_bcount = lp->d_secsize;
bp->b_flags |= B_WRITE;
(*strat)(bp);
error = biowait(bp);
brelse(bp, 0);
return (error);
}