Re: [PATCH] x86_64 add NX mask for PTE entry

[Andi Kleen]

On Wednesday 18 October 2006 13:45, bibo,mao wrote:
> Also I think change_page_attr is buggy. if orginal page is not
> large page, when that page's previous attr is reverted revert_page()
> function will be called to make that page huge. Indeed I think
> there is no need to do this.

On x86-64 all pages in the direct mapping are initially large pages.
On i386 not necessarily, but it deals with that.

-Andi

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