linux-kernel - Re: [PATCH v2 6/7] x86: signal: handle_signal() should use set_current

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Message-ID: <20110422144543.60c65c8e@mfleming-mobl1.ger.corp.intel.com>
Date:	Fri, 22 Apr 2011 14:45:43 +0100
From:	Matt Fleming <matt@...sole-pimps.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Tejun Heo <tj@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Nikita V. Youshchenko" <nyoushchenko@...sta.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 6/7] x86: signal: handle_signal() should use
 set_current_blocked()

On Mon, 18 Apr 2011 15:46:15 +0200
Oleg Nesterov <oleg@...hat.com> wrote:

> This is ugly, but if sigprocmask() needs retarget_shared_pending() then
> handle signal should follow this logic. In theory it is newer correct to
							   ^^ never ;-)

> add the new signals to current->blocked, the signal handler can sleep/etc
> so we should notify other threads in case we block the pending signal and
> nobody else has TIF_SIGPENDING.
> 
> Of course, this change doesn't make signals faster :/
> 
> Signed-off-by: Oleg Nesterov <oleg@...hat.com>

Reviewed-by: Matt Fleming <matt.fleming@...ux.intel.com>
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