linux-kernel - Re: [PATCH 1/4] signals: SEND_SIG_NOINFO should be considered as SI

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Message-ID: <20091006000911.GB4390@us.ibm.com>
Date:	Mon, 5 Oct 2009 17:09:11 -0700
From:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Daniel Lezcano <dlezcano@...ibm.com>,
	Sukadev Bhattiprolu <sukadev@...ibm.com>,
	Linux Containers <containers@...ts.osdl.org>,
	roland@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] signals: SEND_SIG_NOINFO should be considered as
	SI_FROMUSER()

Oleg Nesterov [oleg@...hat.com] wrote:
| No changes in compiled code. The patch adds the new helper, si_fromuser()
| and changes check_kill_permission() to use this helper.
| 
| The real effect of this patch is that from now we "officially" consider
| SEND_SIG_NOINFO signal as "from user-space" signals. This is already true
| if we look at the code which uses SEND_SIG_NOINFO, except __send_signal()
| has another opinion - see the next patch.
| 
| The naming of these special SEND_SIG_XXX siginfo's is really bad imho.
| >From __send_signal()'s pov they mean
| 
| 	SEND_SIG_NOINFO		from user
| 	SEND_SIG_PRIV		from kernel
| 	SEND_SIG_FORCED		no info
| 
| Signed-off-by: Oleg Nesterov <oleg@...hat.com>

Renaming the special siginfo cases be done independently.

Reviewed-by: Sukadev Bhattiprolu <sukadev@...ibm.com>
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