[CRIU] [PATCH cr] files: rework a function for closing all descriptors

[Cyrill Gorcunov]

On Fri, Sep 28, 2012 at 10:34:58PM +0400, Andrey Vagin wrote:
> It reads /proc/PID/fd and close all descriptors except service fds.
> 
> +static int __get_service_fd(enum sfd_type type)
> +{
> +	return service_fd_rlim_cur - type;
> +}
> +
>  int get_service_fd(enum sfd_type type)
>  {
>  	BUG_ON((int)type <= SERVICE_FD_MIN || (int)type >= SERVICE_FD_MAX);
> -	return service_fd_rlim_cur - type;
> +	return __get_service_fd(type);
> +}
> +
> +bool is_one_of_service_fds(int fd)

bool is_service_fd_any(int fd) sounds better?
since we have is_service_fd which match for single entity.

> +{
> +	return fd > __get_service_fd(SERVICE_FD_MAX) &&
> +		fd < __get_service_fd(SERVICE_FD_MIN);
>  }
>  
>  bool is_service_fd(int fd, enum sfd_type type)

	Cyrill