67 	struct gendisk *g;  in add_partition()  local
82 	g = get_gendisk(dev);  in add_partition()
83 	if (!g)  in add_partition()
87 	drive = (MINOR(dev) >> g->minor_shift);  in add_partition()
88 	first_minor = (drive << g->minor_shift);  in add_partition()
89 	end_minor   = first_minor + g->max_p;  in add_partition()
90 	if (drive >= g->nr_real)  in add_partition()
94 	if (first_minor != MINOR(dev) || p->pno <= 0 || p->pno >= g->max_p)  in add_partition()
99 	if (g->part[minor].nr_sects != 0)  in add_partition()
104 		if (!(pstart+plength <= g->part[i].start_sect ||  in add_partition()
105 		      pstart >= g->part[i].start_sect + g->part[i].nr_sects))  in add_partition()
109 	g->part[minor].start_sect = pstart;  in add_partition()
110 	g->part[minor].nr_sects = plength;  in add_partition()
111 	if (g->sizes)  in add_partition()
112 		g->sizes[minor] = (plength >> (BLOCK_SIZE_BITS - 9));  in add_partition()
113 	devfs_register_partitions (g, first_minor, 0);  in add_partition()
128 	struct gendisk *g;  in del_partition()  local
133 	g = get_gendisk(dev);  in del_partition()
134 	if (!g)  in del_partition()
138 	drive = (MINOR(dev) >> g->minor_shift);  in del_partition()
139 	first_minor = (drive << g->minor_shift);  in del_partition()
140 	if (first_minor != MINOR(dev) || p->pno <= 0 || p->pno >= g->max_p)  in del_partition()
145 	if (drive >= g->nr_real || g->part[minor].nr_sects == 0)  in del_partition()
157 	g->part[minor].start_sect = 0;  in del_partition()
158 	g->part[minor].nr_sects = 0;  in del_partition()
159 	if (g->sizes)  in del_partition()
160 		g->sizes[minor] = 0;  in del_partition()
161 	devfs_register_partitions (g, first_minor, 0);  in del_partition()
200 	struct gendisk *g;  in blk_ioctl()  local
245 			g = get_gendisk(dev);  in blk_ioctl()
246 			if (g)  in blk_ioctl()
247 				ullval = g->part[MINOR(dev)].nr_sects;  in blk_ioctl()