From: Tejun Heo <tj@kernel.org>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
"Nikita V. Youshchenko" <nyoushchenko@mvista.com>,
Matt Fleming <matt@console-pimps.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] signal: do_sigtimedwait() needs retarget_shared_pending()
Date: Mon, 25 Apr 2011 18:27:58 +0200 [thread overview]
Message-ID: <20110425162758.GD30828@mtj.dyndns.org> (raw)
In-Reply-To: <20110425160115.GC14934@redhat.com>
Hello,
On Mon, Apr 25, 2011 at 06:01:15PM +0200, Oleg Nesterov wrote:
> > Maybe it would be a good idea to introduce a new helper which checks /
> > enforces that the operation indeed is only unblocking?
>
> I hope nobody will change ->blocked directly, except this function
> and force_sig_info(). And daemonize/allow_signal/disallow_signal, but
> there are special and probably we can already kill this deprecated
> block/unblock code and forbid kernel_thread(CLONE_SIGHAND) + daemonize().
> In fact I think daemonize() should go away.
>
> So, I don't really think we need another helper to unblock something.
Oh I see. I thought there would be quite a number of places
unblocking directly. If that's not the case, it's fine with me.
> > Also, it can
> > be a pure preference but I think _locked suffix is better / more
> > common for APIs which expect the caller to be responsible for locking.
>
> Again, I can rename... Cough, but in this case please simply suggest
> another name. set_tsk_blocked_locked?
Oooh, blocked_locked, didn't see that one coming. Maybe
set_tsk_sigmask() and set_tsk_sigmask_locked()? I prefer sigmask to
blocked anyway, so...
Thanks.
--
tejun
next prev parent reply other threads:[~2011-04-25 16:28 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-18 13:44 [RFC PATCH v2 0/7] signal: sigprocmask fixes Oleg Nesterov
2011-04-18 13:44 ` [PATCH v2 1/7] signal: introduce retarget_shared_pending() Oleg Nesterov
2011-04-22 12:04 ` Matt Fleming
2011-04-25 10:49 ` Tejun Heo
2011-04-18 13:45 ` [PATCH v2 2/7] signal: retarget_shared_pending: consider shared/unblocked signals only Oleg Nesterov
2011-04-22 12:22 ` Matt Fleming
2011-04-25 10:52 ` Tejun Heo
2011-04-25 15:20 ` Oleg Nesterov
2011-04-25 16:19 ` Tejun Heo
2011-04-25 17:02 ` Oleg Nesterov
2011-04-25 17:11 ` Tejun Heo
2011-04-26 19:45 ` Oleg Nesterov
2011-04-28 15:26 ` [PATCHSET] signals-review branch Oleg Nesterov
2011-04-30 12:51 ` Tejun Heo
2011-04-18 13:45 ` [PATCH v2 3/7] signal: retarget_shared_pending: optimize while_each_thread() loop Oleg Nesterov
2011-04-22 12:26 ` Matt Fleming
2011-04-25 11:03 ` Tejun Heo
2011-04-18 13:45 ` [PATCH v2 4/7] signal: sigprocmask: narrow the scope of ->siglock Oleg Nesterov
2011-04-22 12:31 ` Matt Fleming
2011-04-25 11:05 ` Tejun Heo
2011-04-18 13:45 ` [PATCH v2 5/7] signal: sigprocmask() should do retarget_shared_pending() Oleg Nesterov
2011-04-22 12:46 ` Matt Fleming
2011-04-25 11:14 ` Tejun Heo
2011-04-18 13:46 ` [PATCH v2 6/7] x86: signal: handle_signal() should use set_current_blocked() Oleg Nesterov
2011-04-22 13:45 ` Matt Fleming
2011-04-25 11:19 ` Tejun Heo
2011-04-18 13:46 ` [PATCH v2 7/7] x86: signal: sys_rt_sigreturn() " Oleg Nesterov
2011-04-22 14:14 ` Matt Fleming
2011-04-23 18:12 ` Oleg Nesterov
2011-04-25 11:21 ` Tejun Heo
2011-04-18 13:47 ` [PATCH v2 8/7] signal: cleanup sys_rt_sigprocmask() Oleg Nesterov
2011-04-22 14:30 ` Matt Fleming
2011-04-23 18:20 ` Oleg Nesterov
2011-04-23 18:47 ` Matt Fleming
2011-04-25 11:26 ` Tejun Heo
2011-04-18 17:16 ` [RFC PATCH v2 0/7] signal: sigprocmask fixes Linus Torvalds
2011-04-18 17:32 ` Oleg Nesterov
2011-04-18 17:40 ` Linus Torvalds
2011-04-23 17:59 ` [PATCH 0/3] do_sigtimedwait() needs retarget_shared_pending() Oleg Nesterov
2011-04-23 17:59 ` [PATCH 1/3] signal: sys_rt_sigtimedwait: simplify the timeout logic Oleg Nesterov
2011-04-25 11:37 ` Tejun Heo
2011-04-25 17:26 ` Oleg Nesterov
2011-04-25 17:34 ` Linus Torvalds
2011-04-25 17:56 ` Oleg Nesterov
2011-04-25 19:38 ` Linus Torvalds
2011-04-26 10:18 ` Matt Fleming
2011-04-23 17:59 ` [PATCH 2/3] signal: introduce do_sigtimedwait() to factor out compat/native code Oleg Nesterov
2011-04-25 11:39 ` Tejun Heo
2011-04-25 11:49 ` Tejun Heo
2011-04-25 15:33 ` Oleg Nesterov
2011-04-25 16:25 ` Tejun Heo
2011-04-26 10:28 ` Matt Fleming
2011-04-23 18:00 ` [PATCH 3/3] signal: do_sigtimedwait() needs retarget_shared_pending() Oleg Nesterov
2011-04-25 11:52 ` Tejun Heo
2011-04-25 16:01 ` Oleg Nesterov
2011-04-25 16:27 ` Tejun Heo [this message]
2011-04-25 17:07 ` Oleg Nesterov
2011-04-25 17:12 ` Tejun Heo
2011-04-26 10:40 ` Matt Fleming
2011-04-26 10:42 ` Matt Fleming
2011-04-26 19:48 ` [PATCH v2 0/6] sigtimedwait/sigprocmask need retarget_shared_pending() Oleg Nesterov
2011-04-26 19:48 ` [PATCH v2 1/6] signal: sys_rt_sigtimedwait: simplify the timeout logic Oleg Nesterov
2011-04-26 19:49 ` [PATCH v2 2/6] signal: introduce do_sigtimedwait() to factor out compat/native code Oleg Nesterov
2011-04-27 10:09 ` Tejun Heo
2011-04-27 21:24 ` Matt Fleming
2011-05-11 16:21 ` Mike Frysinger
2011-05-12 18:54 ` Oleg Nesterov
2011-05-13 16:44 ` [PATCH] signal: trivial, fix the "timespec declared inside parameter list" warning Oleg Nesterov
2011-05-13 18:09 ` Mike Frysinger
2011-05-16 12:57 ` Oleg Nesterov
2011-05-16 12:57 ` [PATCH v2] " Oleg Nesterov
2011-05-16 17:39 ` Mike Frysinger
2011-05-18 23:37 ` Andrew Morton
2011-05-19 18:19 ` Oleg Nesterov
2011-05-19 19:21 ` Mike Frysinger
2011-04-26 19:49 ` [PATCH v2 3/6] signal: do_sigtimedwait() needs retarget_shared_pending() Oleg Nesterov
2011-04-26 19:49 ` [PATCH v2 4/6] signal: cleanup sys_sigprocmask() Oleg Nesterov
2011-04-27 10:12 ` Tejun Heo
2011-04-27 21:31 ` Matt Fleming
2011-04-26 19:50 ` [PATCH v2 5/6] signal: sys_sigprocmask() needs retarget_shared_pending() Oleg Nesterov
2011-04-26 21:43 ` Linus Torvalds
2011-04-27 12:57 ` Oleg Nesterov
2011-04-27 13:04 ` Tejun Heo
2011-05-01 20:07 ` [PATCH v2 0/1] " Oleg Nesterov
2011-05-01 20:08 ` [PATCH v2 1/1] " Oleg Nesterov
2011-04-26 19:50 ` [PATCH v2 6/6] signal: rename signandsets() to sigandnsets() Oleg Nesterov
2011-04-27 10:11 ` Tejun Heo
2011-04-27 21:43 ` Matt Fleming
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