Subject: Re: [PATCH 2/2] powerpc/mm: don't do tlbie for updatepp request with NO HPTE fault

From: Benjamin Herrenschmidt <[email-masked]>
Date: Tue, 02 Dec 2014 14:09:26 +1100

On Mon, 2014-11-03 at 20:21 +0530, Aneesh Kumar K.V wrote:
> upatepp get called for a nohpte fault, when we find from the linux
> page table that the translation was hashed before. In that case
> we are sure that there is no existing translation, hence we could
> avoid doing tlbie.

You need to test your own stuff together :-)

/home/benh/linux-powerpc-test/arch/powerpc/mm/hugepage-hash64.c: In function '__hash_page_thp':
/home/benh/linux-powerpc-test/arch/powerpc/mm/hugepage-hash64.c:98:17: error: 'local' undeclared (first use in this function)
/home/benh/linux-powerpc-test/arch/powerpc/mm/hugepage-hash64.c:98:17: note: each undeclared identifier is reported only once for each function it appears in

Cheers,
Ben.