[PATCH] arm64/mm: remove unnecessary boundary check

Will Deacon will.deacon at arm.com
Fri Feb 26 01:47:21 PST 2016


On Thu, Feb 25, 2016 at 11:44:34AM +0800, miles.chen at mediatek.com wrote:
> From: Miles Chen <miles.chen at mediatek.com>
> 
> Remove the unnecessary boundary check since there is a huge
> gap between user and kernel address that they would never overlap.
> (arm64 does not have enough levels of page tables to cover 64-bit
> virtual address)
> 
> See Documentation/arm64/memory.txt
> 
> Signed-off-by: Miles Chen <miles.chen at mediatek.com>
> ---
>  arch/arm64/mm/init.c | 2 --
>  1 file changed, 2 deletions(-)

Acked-by: Will Deacon <will.deacon at arm.com>

Will



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