From: Nicholas Miell <nmiell@comcast.net>
To: Davide Libenzi <davidel@xmailserver.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Oleg Nesterov <oleg@tv-sign.ru>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Fix signalfd interaction with thread-private signals
Date: Fri, 22 Jun 2007 18:15:47 -0700 [thread overview]
Message-ID: <1182561347.2735.14.camel@entropy> (raw)
In-Reply-To: <Pine.LNX.4.64.0706221710150.3880@alien.or.mcafeemobile.com>
On Fri, 2007-06-22 at 17:12 -0700, Davide Libenzi wrote:
> On Fri, 22 Jun 2007, Nicholas Miell wrote:
>
> > You could just get rid of the process/sighand/whatever reference
> > entirely and just make reads on a signalfd always dequeue signals for
> > the current thread.
>
> Duh?! ...
>
> > You'd lose the ability to pass signalfds around to other processes, but
> > I'm not convinced that is even useful. (But I'm sure somebody smarter
> > than me has a valid use case and would love to share :-)
>
> Wasn't it you that bitched (just a few days ago) because multiple threads
> could not use the same signalfd and they (by your initial thought) had to
> create one per thread?
Nevermind, I wasn't entirely clear on the reason why signalfd_ctx had a
tsk pointer. (I wrongly thought it was a vestige of the mechanism for
the original delivery semantics.)
--
Nicholas Miell <nmiell@comcast.net>
next prev parent reply other threads:[~2007-06-23 1:20 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-17 3:33 And now for something _totally_ different: Linux v2.6.22-rc5 Linus Torvalds
2007-06-17 7:15 ` Nicholas Miell
2007-06-17 17:01 ` Davide Libenzi
2007-06-17 19:26 ` Nicholas Miell
2007-06-17 23:49 ` Davide Libenzi
2007-06-18 0:08 ` Nicholas Miell
2007-06-18 0:20 ` Davide Libenzi
2007-06-18 0:43 ` Benjamin Herrenschmidt
2007-06-18 0:47 ` Davide Libenzi
2007-06-18 17:14 ` Linus Torvalds
2007-06-19 9:14 ` Fix signalfd interaction with thread-private signals Oleg Nesterov
2007-06-19 12:09 ` Benjamin Herrenschmidt
2007-06-19 14:06 ` Oleg Nesterov
2007-06-19 19:53 ` Davide Libenzi
2007-06-19 20:08 ` Oleg Nesterov
2007-06-19 23:16 ` Davide Libenzi
2007-06-19 23:24 ` Benjamin Herrenschmidt
2007-06-20 11:14 ` Oleg Nesterov
2007-06-20 17:38 ` Linus Torvalds
2007-06-21 8:25 ` Oleg Nesterov
2007-06-21 18:01 ` Linus Torvalds
2007-06-21 18:23 ` Oleg Nesterov
2007-06-21 18:35 ` Linus Torvalds
2007-06-21 18:58 ` Oleg Nesterov
2007-06-21 23:30 ` Benjamin Herrenschmidt
2007-06-21 23:46 ` Linus Torvalds
2007-06-22 8:40 ` Oleg Nesterov
2007-06-22 11:41 ` Benjamin Herrenschmidt
2007-06-22 16:04 ` Oleg Nesterov
2007-06-22 22:33 ` Benjamin Herrenschmidt
2007-06-22 22:47 ` Linus Torvalds
2007-06-22 23:00 ` Davide Libenzi
2007-06-22 23:16 ` Benjamin Herrenschmidt
2007-06-22 23:19 ` Benjamin Herrenschmidt
2007-06-22 23:42 ` Nicholas Miell
2007-06-23 0:12 ` Davide Libenzi
2007-06-23 1:15 ` Nicholas Miell [this message]
2007-06-23 6:05 ` Benjamin Herrenschmidt
2007-06-23 22:54 ` Nicholas Miell
2007-06-23 16:35 ` Oleg Nesterov
2007-06-19 19:43 ` Davide Libenzi
2007-06-19 19:59 ` Oleg Nesterov
2007-06-19 23:49 ` Davide Libenzi
2007-06-20 1:25 ` Benjamin Herrenschmidt
2007-06-20 2:15 ` Davide Libenzi
2007-06-20 3:46 ` Benjamin Herrenschmidt
2007-06-20 15:54 ` Davide Libenzi
2007-06-18 13:42 ` And now for something _totally_ different: Linux v2.6.22-rc5 Oleg Nesterov
2007-06-19 21:37 ` Mariusz Kozlowski
2007-06-19 21:48 ` Linus Torvalds
2007-06-19 22:31 ` Mariusz Kozlowski
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