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Re: [Xen-devel] ptep_set_access_flags() using UVMF_MULTI?

To: "Keir Fraser" <keir@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] ptep_set_access_flags() using UVMF_MULTI?
From: "Jan Beulich" <jbeulich@xxxxxxxxxx>
Date: Tue, 13 Mar 2007 13:34:59 +0000
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>>> Keir Fraser <keir@xxxxxxxxxxxxx> 13.03.07 13:09 >>>
>On 13/3/07 11:14, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:
>> Why is this so when the touched mm is active, even though the alternative
>> case and native only use flush_tlb_page() (i.e. only flush the local tlb)?
>> Thanks, Jan
>We don't need any more flushing than native. Perhaps the original native
>code did a cross-TLBs flush and that got reduced in more recent kernels but
>the Xen code didn't get modified? Anyway, please send a patch.

My mistake, I looked at the !SMP case (and even half-way knew I did, but didn't
bother to look at the SMP one, too.

Sorry for the noise, Jan

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