linux-kernel - Re: [PATCH 6/7 linux-next] wan: cosa: replace current->state by set_current

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Message-ID: <54E787B7.5000609@cogentembedded.com>
Date:	Fri, 20 Feb 2015 22:15:03 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Fabian Frederick <fabf@...net.be>, linux-kernel@...r.kernel.org
CC:	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	netdev@...r.kernel.org, "Jan \"Yenya\" Kasprzak" <kas@...muni.cz>
Subject: Re: [PATCH 6/7 linux-next] wan: cosa: replace current->state by set_current_state()

On 02/20/2015 09:51 PM, Fabian Frederick wrote:

>>> Use helper functions to access current->state.
>>> Direct assignments are prone to races and therefore buggy.

>>> current->state = TASK_RUNNING is replaced by __set_current_state()

>>       You sometimes use __set_current_state() and sometimes set_current_state().

> Hello Sergei,

> Peter suggested to use __set_current_state() for TASK_RUNNING :
> http://marc.info/?l=linux-kernel&m=142442259719216&w=2

    I didn't even question your decisions, I (like Peter) just wanted a more 
coherent change-log. Thanks to Peter for the explanations though. :-)

> Regards,
> Fabian

>>> Thanks to Peter Zijlstra for the exact definition of the problem.

>>> Suggested-By: Peter Zijlstra <peterz@...radead.org>
>>> Signed-off-by: Fabian Frederick <fabf@...net.be>

>> [...]

WBR, Sergei

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