C++ (Cpp) kobj_ns_drop Examples

Example #1

File: mount.c Project: 7799/linux

static void sysfs_kill_sb(struct super_block *sb)
{
	void *ns = (void *)kernfs_super_ns(sb);

	kernfs_kill_sb(sb);
	kobj_ns_drop(KOBJ_NS_TYPE_NET, ns);
}

Example #2

File: mount.c Project: 119-org/hi3518-osdrv

static void free_sysfs_super_info(struct sysfs_super_info *info)
{
	int type;
	for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++)
		kobj_ns_drop(type, info->ns[type]);
	kfree(info);
}

Example #3

File: mount.c Project: 7799/linux

static struct dentry *sysfs_mount(struct file_system_type *fs_type,
	int flags, const char *dev_name, void *data)
{
	struct dentry *root;
	void *ns;
	bool new_sb;

	if (!(flags & MS_KERNMOUNT)) {
		if (!capable(CAP_SYS_ADMIN) && !fs_fully_visible(fs_type))
			return ERR_PTR(-EPERM);

		if (!kobj_ns_current_may_mount(KOBJ_NS_TYPE_NET))
			return ERR_PTR(-EPERM);
	}

	ns = kobj_ns_grab_current(KOBJ_NS_TYPE_NET);
	root = kernfs_mount_ns(fs_type, flags, sysfs_root, &new_sb, ns);
	if (IS_ERR(root) || !new_sb)
		kobj_ns_drop(KOBJ_NS_TYPE_NET, ns);
	return root;
}

Example #4

File: mount.c Project: AK101111/linux

static struct dentry *sysfs_mount(struct file_system_type *fs_type,
	int flags, const char *dev_name, void *data)
{
	struct dentry *root;
	void *ns;
	bool new_sb;

	if (!(flags & MS_KERNMOUNT)) {
		if (!kobj_ns_current_may_mount(KOBJ_NS_TYPE_NET))
			return ERR_PTR(-EPERM);
	}

	ns = kobj_ns_grab_current(KOBJ_NS_TYPE_NET);
	root = kernfs_mount_ns(fs_type, flags, sysfs_root,
				SYSFS_MAGIC, &new_sb, ns);
	if (IS_ERR(root) || !new_sb)
		kobj_ns_drop(KOBJ_NS_TYPE_NET, ns);
	else if (new_sb)
		root->d_sb->s_iflags |= SB_I_USERNS_VISIBLE;

	return root;
}