linux-kernel - Re: Fix signalfd interaction with thread-private signals

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Message-ID: <Pine.LNX.4.64.0706191242160.16740@alien.or.mcafeemobile.com>
Date:	Tue, 19 Jun 2007 12:43:53 -0700 (PDT)
From:	Davide Libenzi <davidel@...ilserver.org>
To:	Oleg Nesterov <oleg@...sign.ru>
cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Nicholas Miell <nmiell@...cast.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Fix signalfd interaction with thread-private signals

On Tue, 19 Jun 2007, Oleg Nesterov wrote:

> The commited "Fix signalfd interaction with thread-private signals"
> (commit caec4e8dc85e0644ec24aeb36285e1ba02da58cc) doesn't implement
> this.
> 
> We can do something like
> 
> 	int signalfd_dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
> 	{
> 		if (tsk->tgid == current->tgid)
> 			tsk = current;
> 
> 		return dequeue_signal(tsk, mask, info);
> 	}
> 
> (still I can't understand why should we change signalfd).

Yes, of course. I was waiting for Ben's patch to go in, before fixing 
signalfd. I did not know if Linus would have acked that.



- Davide


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