Re: [RFT PATCH v2 1/4] arm64: fix possible invalid FPSIMD initializationstate

[Jiang Liu]

On 10/14/2013 09:54 PM, Catalin Marinas wrote:
> On Sun, Oct 13, 2013 at 03:20:17PM +0100, Jiang Liu wrote:
>> From: Jiang Liu <jiang.liu@xxxxxxxxxx>
>>
>> If context switching happens during executing fpsimd_flush_thread(),
>> stale value in FPSIMD registers will be saved into current thread's
>> fpsimd_state by fpsimd_thread_switch(). That may cause invalid
>> initialization state for the new process, so disable preemption
>> when executing fpsimd_flush_thread().
>>
>> Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
>> Cc: Jiang Liu <liuj97@xxxxxxxxx>
> 
> That's already in mainline (3.12-rc4).
> 

Hi Catalin,
	I haven't noticed that yet, sorry for the noise:)
Thanks!
Gerry
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/