From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 117C21A0185 for ; Wed, 3 Dec 2014 14:37:44 +1100 (AEDT) Message-ID: <1417577863.16722.10.camel@concordia> Subject: Re: [PATCH V2] powerpc/mm: don't do tlbie for updatepp request with NO HPTE fault From: Michael Ellerman To: "Aneesh Kumar K.V" Date: Wed, 03 Dec 2014 14:37:43 +1100 In-Reply-To: <1417503002-22086-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1417503002-22086-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Cc: paulus@samba.org, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 2014-12-02 at 12:20 +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. Same comments as last time. http://patchwork.ozlabs.org/patch/406219/ cheers