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SubjectRe: [patch] x86: fix page attribute corruption with cpa()

* Suresh Siddha <suresh.b.siddha@intel.com> wrote:

> This patch fixes a performance issue reported by Linus on his Nehalem
> system. While Linus reverted the PAT patch (commit
> 58dab916dfb57328d50deb0aa9b3fc92efa248ff) which exposed the issue,
> existing cpa() code can potentially still cause wrong(page attribute
> corruption) behavior.
>
> This patch also fixes the "WARNING: at arch/x86/mm/pageattr.c:560" that
> various people reported.

nice fix - applied to tip/x86/urgent, thanks Suresh!

Ingo


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