C++ (Cpp) disk_max_parts Examples

Example #1

File: check.c Project: openube/android_kernel_sony_c2305

struct parsed_partitions *
check_partition(struct gendisk *hd, struct block_device *bdev)
{
	struct parsed_partitions *state;
	int i, res, err;

	state = kzalloc(sizeof(struct parsed_partitions), GFP_KERNEL);
	if (!state)
		return NULL;
	state->pp_buf = (char *)__get_free_page(GFP_KERNEL);
	if (!state->pp_buf) {
		kfree(state);
		return NULL;
	}
	state->pp_buf[0] = '\0';

	state->bdev = bdev;
	disk_name(hd, 0, state->name);
	snprintf(state->pp_buf, PAGE_SIZE, " %s:", state->name);
	if (isdigit(state->name[strlen(state->name)-1]))
		sprintf(state->name, "p");

	state->limit = disk_max_parts(hd);
	i = res = err = 0;
	while (!res && check_part[i]) {
		memset(&state->parts, 0, sizeof(state->parts));
		res = check_part[i++](state);
		if (res < 0) {
			/* We have hit an I/O error which we don't report now.
		 	* But record it, and let the others do their job.
		 	*/
			err = res;
			res = 0;
		}

	}
	if (res > 0) {
		printk(KERN_INFO "%s", state->pp_buf);

		free_page((unsigned long)state->pp_buf);
		return state;
	}
	if (state->access_beyond_eod)
		err = -ENOSPC;
	if (err)
	/* The partition is unrecognized. So report I/O errors if there were any */
		res = err;
	if (!res)
		strlcat(state->pp_buf, " unknown partition table\n", PAGE_SIZE);
	else if (warn_no_part)
		strlcat(state->pp_buf, " unable to read partition table\n", PAGE_SIZE);

	printk(KERN_INFO "%s", state->pp_buf);

	free_page((unsigned long)state->pp_buf);
	kfree(state);
	return ERR_PTR(res);
}

Example #2

File: check.c Project: 0-T-0/ps4-linux

static struct parsed_partitions *allocate_partitions(struct gendisk *hd)
{
	struct parsed_partitions *state;
	int nr;

	state = kzalloc(sizeof(*state), GFP_KERNEL);
	if (!state)
		return NULL;

	nr = disk_max_parts(hd);
	state->parts = vzalloc(nr * sizeof(state->parts[0]));
	if (!state->parts) {
		kfree(state);
		return NULL;
	}

	state->limit = nr;

	return state;
}