On 04/09, David Woodhouse wrote:
> One of the supposed advantages of TIF_RESTORE_SIGMASK in the first
> place, iirc, was that it allowed us to return a result code other than
> -EINTR as _well_ as restoring the signal mask.
Agreed, good point. ERESTART_ is not that flexible.
Somehow I assumed we will never need something "special" here, this is
not very clever.