C++ (Cpp) nd_region_to_nstype示例

示例#1

文件： region_devs.c 项目： Chong-Li/cse522

static ssize_t nstype_show(struct device *dev,
		struct device_attribute *attr, char *buf)
{
	struct nd_region *nd_region = to_nd_region(dev);

	return sprintf(buf, "%d\n", nd_region_to_nstype(nd_region));
}

示例#2

文件： region_devs.c 项目： Codefollows/ps4-linux

static int is_uuid_busy(struct device *dev, void *data)
{
	struct nd_region *nd_region = to_nd_region(dev->parent);
	u8 *uuid = data;

	switch (nd_region_to_nstype(nd_region)) {
	case ND_DEVICE_NAMESPACE_PMEM: {
		struct nd_namespace_pmem *nspm = to_nd_namespace_pmem(dev);

		if (!nspm->uuid)
			break;
		if (memcmp(uuid, nspm->uuid, NSLABEL_UUID_LEN) == 0)
			return -EBUSY;
		break;
	}
	case ND_DEVICE_NAMESPACE_BLK: {
		struct nd_namespace_blk *nsblk = to_nd_namespace_blk(dev);

		if (!nsblk->uuid)
			break;
		if (memcmp(uuid, nsblk->uuid, NSLABEL_UUID_LEN) == 0)
			return -EBUSY;
		break;
	}
	default:
		break;
	}

	return 0;
}

示例#3

文件： region_devs.c 项目： Chong-Li/cse522

static umode_t region_visible(struct kobject *kobj, struct attribute *a, int n)
{
	struct device *dev = container_of(kobj, typeof(*dev), kobj);
	struct nd_region *nd_region = to_nd_region(dev);
	struct nd_interleave_set *nd_set = nd_region->nd_set;
	int type = nd_region_to_nstype(nd_region);

	if (a != &dev_attr_set_cookie.attr
			&& a != &dev_attr_available_size.attr)
		return a->mode;

	if ((type == ND_DEVICE_NAMESPACE_PMEM
				|| type == ND_DEVICE_NAMESPACE_BLK)
			&& a == &dev_attr_available_size.attr)
		return a->mode;
	else if (is_nd_pmem(dev) && nd_set)
		return a->mode;

	return 0;
}