Re: [patch 0/7] x86, cpa: cpa related changes to be inline withTLB Application note - v2

[Ingo Molnar]

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

> v2:
>  1. Fix the deadlock associated with smp call function and spin_lock_irqsave()
>     for pgd_lock.
>  2. No alias checks for __set_pages_np()/__set_pages_p() avoiding the large
>     text page split from atomic context in CONFIG_DEBUG_PAGEALLOC.
>  3. Serialize cpa() for !CONFIG_DEBUG_PAGEALLOC, so that a cpu with stale
>     large page tlb's(but small PTE's in memory) won't do a cpa() in parallel
>     to some other cpu splitting large pages and changing page attribute for
>     a small page.

ok, looks good and the code got simpler as well. I've started testing it 
in tip/master and will push out these updates to tip/x86/pat if they 
pass. (v1 had stability problems)

Thanks,

	Ingo
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