135 	struct grant_map *add;  in gntdev_alloc_map()  local
138 	add = kzalloc(sizeof(struct grant_map), GFP_KERNEL);  in gntdev_alloc_map()
139 	if (NULL == add)  in gntdev_alloc_map()
142 	add->grants    = kcalloc(count, sizeof(add->grants[0]), GFP_KERNEL);  in gntdev_alloc_map()
143 	add->map_ops   = kcalloc(count, sizeof(add->map_ops[0]), GFP_KERNEL);  in gntdev_alloc_map()
144 	add->unmap_ops = kcalloc(count, sizeof(add->unmap_ops[0]), GFP_KERNEL);  in gntdev_alloc_map()
145 	add->kmap_ops  = kcalloc(count, sizeof(add->kmap_ops[0]), GFP_KERNEL);  in gntdev_alloc_map()
146 	add->kunmap_ops = kcalloc(count, sizeof(add->kunmap_ops[0]), GFP_KERNEL);  in gntdev_alloc_map()
147 	add->pages     = kcalloc(count, sizeof(add->pages[0]), GFP_KERNEL);  in gntdev_alloc_map()
148 	if (NULL == add->grants    ||  in gntdev_alloc_map()
149 	    NULL == add->map_ops   ||  in gntdev_alloc_map()
150 	    NULL == add->unmap_ops ||  in gntdev_alloc_map()
151 	    NULL == add->kmap_ops  ||  in gntdev_alloc_map()
152 	    NULL == add->kunmap_ops ||  in gntdev_alloc_map()
153 	    NULL == add->pages)  in gntdev_alloc_map()
156 	if (gnttab_alloc_pages(count, add->pages))  in gntdev_alloc_map()
160 		add->map_ops[i].handle = -1;  in gntdev_alloc_map()
161 		add->unmap_ops[i].handle = -1;  in gntdev_alloc_map()
162 		add->kmap_ops[i].handle = -1;  in gntdev_alloc_map()
163 		add->kunmap_ops[i].handle = -1;  in gntdev_alloc_map()
166 	add->index = 0;  in gntdev_alloc_map()
167 	add->count = count;  in gntdev_alloc_map()
168 	atomic_set(&add->users, 1);  in gntdev_alloc_map()
170 	return add;  in gntdev_alloc_map()
173 	gntdev_free_map(add);  in gntdev_alloc_map()
177 static void gntdev_add_map(struct gntdev_priv *priv, struct grant_map *add)  in gntdev_add_map()  argument
182 		if (add->index + add->count < map->index) {  in gntdev_add_map()
183 			list_add_tail(&add->next, &map->next);  in gntdev_add_map()
186 		add->index = map->index + map->count;  in gntdev_add_map()
188 	list_add_tail(&add->next, &priv->maps);  in gntdev_add_map()
191 	gntdev_print_maps(priv, "[new]", add->index);  in gntdev_add_map()