From mboxrd@z Thu Jan  1 00:00:00 1970
From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Subject: Re: [PATCH 3/4] exit_thread: accept a task parameter to be exited
Date: Thu, 24 Mar 2016 15:36:58 +0000
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To: Jiri Slaby <jslaby@suse.cz>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, Richard Henderson <rth@twiddle.net>, Ivan Kokshaysky <ink@jurassic.park.msu.ru>, Matt Turner <mattst88@gmail.com>, Vineet Gupta <vgupta@synopsys.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, Haavard Skinnemoen <hskinnemoen@gmail.com>, Hans-Christian Egtvedt <egtvedt@samfundet.no>, Steven Miao <realmz6@gmail.com>, Mark Salter <msalter@redhat.com>, Aurelien Jacquiot <a-jacquiot@ti.com>, Mikael Starvik <starvik@axis.com>, Jesper Nilsson <jesper.nilsson@axis.com>, Yoshinori Sato <ysato@users.sourceforge.jp>, Richard Kuo <rkuo@codeaurora.org>, Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>, Geert Uytterhoeven <geert@linux-m68k.org>

On Thu, Mar 24, 2016 at 01:58:13PM +0100, Jiri Slaby wrote:
> We need to call exit_thread from copy_process in a fail path.  So make
> it accept task_struct as a parameter.

Hmm, so what this means is that exit_thread() can now be called for
threads which are not running on the CPU.  So, I think the comment
in arch/arm/vfp/vfpmodule.c needs to be updated:

 *  THREAD_NOTIFY_EXIT
 *   - the thread (v) will be running on the local CPU, so
 *      v === current_thread_info()

along with this change, since that becomes false.

The code, however, looks like it'll cope just fine with that being
false, as will the other users of THREAD_NOTIFY_EXIT in ARM.

Thanks.

-- 
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