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From: "Chen, Tiejun" <tiejun.chen@intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH] kvm: coalesced_mmio: remove one redundant check inside of coalesced_mmio_in_range()
Date: Fri, 12 Dec 2014 09:24:38 +0800	[thread overview]
Message-ID: <548A43D6.2020507@intel.com> (raw)
In-Reply-To: <548A3E8E.7080609@intel.com>

On 2014/12/12 9:02, Chen, Tiejun wrote:
> On 2014/12/11 19:29, Paolo Bonzini wrote:
>>
>>
>> On 11/12/2014 04:02, Tiejun Chen wrote:
>>> We already check 'len' above to make sure it already isn't
>>> negative here, so indeed, (addr + len < addr) should never be happened.
>>
>> ... except if there is an overflow.
>

I think now I can understand what you mean.

Thanks
Tiejun

      reply	other threads:[~2014-12-12  1:24 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-11  3:02 [PATCH] kvm: coalesced_mmio: remove one redundant check inside of coalesced_mmio_in_range() Tiejun Chen
2014-12-11 11:29 ` Paolo Bonzini
2014-12-12  1:02   ` Chen, Tiejun
2014-12-12  1:24     ` Chen, Tiejun [this message]

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