Off hand, I concur with you and Linus. I wasn't involved in the introduction of TIF_RESTORE_SIGMASK and never thought too much about it before. In my recent changes I only considered the issue of getting it out of _TIF_WORK_MASK et al to free up the low bit, and didn't contemplate the structure of the implementation beyond that. I don't think it's "too late" to change anything. (It's never too late! It just might take a while to make a change in a safe and orderly fashion for all the arch's.) After my patch series, the details are fully in the arch's corner. It should be straightforward to convert one at a time to use regs->return_register = -ERESTARTRESTOREMASK to implement set_restore_sigmask() if you want to tackle it. Thanks, Roland -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
