Re: [RFC PATCH 1/5] signal: Teach sigsuspend to use set_user_sigmask

[Oleg Nesterov]

On 06/12, David Laight wrote:
>
> > > If I add a signal handler for SIGINT it is called when pselect()
> > > returns regardless of the return value.
> >
> > That is odd.  Is this with Oleg's fix applied?
>
> No it is a 5.1.0-rc5 kernel with no related local patches.
> So it is the 'historic' behaviour of pselect().

No, this is not historic behaviour,

> But not the original one! Under 2.6.22-5-31 the signal handler isn't caller
> when pselect() returns 1.

This is historic behaviour.

And it was broken by 854a6ed56839a4 ("signal: Add restore_user_sigmask()").

And this is what we already discussed many, many times in this thread ;)

Oleg.