> +/**
> + * vm_account_init - Initialise a new struct vm_account.
> + * @vm_account: pointer to uninitialised vm_account.
> + * @task: task to charge against.
> + * @user: user to charge against. Must be non-NULL for VM_ACCOUNT_USER.
> + * @flags: flags to use when charging to vm_account.
> + *
> + * Initialise a new uninitialiused struct vm_account. Takes references
> + * on the task/mm/user/cgroup as required although callers must ensure
> + * any references passed in remain valid for the duration of this
> + * call.
> + */
> +void vm_account_init(struct vm_account *vm_account, struct task_struct
*task,
> + struct user_struct *user, enum vm_account_flags flags);
kerneldoc comments are supposed to be next to the implementation, and
not the declaration in the header.