Function blist_free

freebsd/kern/subr_blist.c:330–339

* blist_free() - free up space in the block bitmap. Return the base * of a contiguous region. */

 *		     	of a contiguous region.
 */
void
blist_free(blist_t bl, daddr_t blkno, daddr_t count)
{

	KASSERT(blkno >= 0 && blkno + count <= bl->bl_blocks,
	    ("freeing invalid range: blkno %jx, count %d, blocks %jd",
	    (uintmax_t)blkno, (int)count, (uintmax_t)bl->bl_blocks));
	blst_meta_free(bl->bl_root, blkno, count, bl->bl_radix);
	bl->bl_avail += count;
}

/*
 * blist_fill() -	mark a region in the block bitmap as off-limits