On Wed, 15 Jul 2020 10:05:25 -0400, William Tambe said:
> When returning from schedule_tail(), is it still necessary to check
> for (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME) before resuming task ?

Well.. since the semantics of signals are defined as being delivered
when a process returns from the kernel, how would you avoid checking
for a pending signal and still maintain the semantics?