From: Catalin Marinas <catalin.marinas@arm.com>
To: miles.chen@mediatek.com
Cc: Will Deacon <will.deacon@arm.com>,
srv_wsdupstream@mediatek.com, linux-mediatek@lists.infradead.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] arm64/mm: remove unnecessary boundary check
Date: Fri, 26 Feb 2016 13:40:33 +0000 [thread overview]
Message-ID: <20160226134033.GK4777@e104818-lin.cambridge.arm.com> (raw)
In-Reply-To: <1456371874-19826-1-git-send-email-miles.chen@mediatek.com>
On Thu, Feb 25, 2016 at 11:44:34AM +0800, miles.chen@mediatek.com wrote:
> From: Miles Chen <miles.chen@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@mediatek.com>
Applied. Thanks.
--
Catalin
prev parent reply other threads:[~2016-02-26 13:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-25 3:44 miles.chen
2016-02-26 9:47 ` Will Deacon
2016-02-26 13:40 ` Catalin Marinas [this message]
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