From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7EB68CA9ED0 for ; Thu, 31 Oct 2019 14:30:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5585E20873 for ; Thu, 31 Oct 2019 14:30:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="EgyADGXP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728230AbfJaOaO (ORCPT ); Thu, 31 Oct 2019 10:30:14 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:51950 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728193AbfJaOaN (ORCPT ); Thu, 31 Oct 2019 10:30:13 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1572532213; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=bOUVT0tM1Rk0k66JwJCEU8B49lHWoxKSNJNje7XME9Y=; b=EgyADGXPYilyBPaHem5qxDAMIc+B67g2PmMM8h55JEizVr5HZB31Ae+aeiKMnoLdJlUzqu Bphu+veCSTFjzIA6atBxgSzGW/EnsAf+fW93S6OcjVHvTcoNtarU6khVeyXUN8Qz/yWNX2 0GTgv883tlu4RDxdypUP7aCd/HocOVw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-408-QQBS-wraPk-5GELsDba4IA-1; Thu, 31 Oct 2019 10:30:08 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id BEE3D2EDC; Thu, 31 Oct 2019 14:30:06 +0000 (UTC) Received: from t460s.redhat.com (unknown [10.36.118.44]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4E1C25D6D6; Thu, 31 Oct 2019 14:29:59 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, Andrew Morton , David Hildenbrand , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Pavel Tatashin , Richard Fontana , Allison Randal , Thomas Gleixner , Arun KS Subject: [PATCH v1 05/12] powerpc/pseries: CMM: Use adjust_managed_page_count() insted of totalram_pages_* Date: Thu, 31 Oct 2019 15:29:26 +0100 Message-Id: <20191031142933.10779-6-david@redhat.com> In-Reply-To: <20191031142933.10779-1-david@redhat.com> References: <20191031142933.10779-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-MC-Unique: QQBS-wraPk-5GELsDba4IA-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org adjust_managed_page_count() performs a totalram_pages_add(), but also adjust the managed pages of the zone. Let's use that instead, similar to virtio-balloon. Use it before freeing a page. Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Andrew Morton Cc: Pavel Tatashin Cc: Richard Fontana Cc: Allison Randal Cc: Thomas Gleixner Cc: Arun KS Signed-off-by: David Hildenbrand --- arch/powerpc/platforms/pseries/cmm.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/= pseries/cmm.c index 33d31e48ec15..f82c468ca2c4 100644 --- a/arch/powerpc/platforms/pseries/cmm.c +++ b/arch/powerpc/platforms/pseries/cmm.c @@ -164,7 +164,7 @@ static long cmm_alloc_pages(long nr) =20 =09=09list_add(&page->lru, &cmm_page_list); =09=09loaned_pages++; -=09=09totalram_pages_dec(); +=09=09adjust_managed_page_count(page, -1); =09=09spin_unlock(&cmm_lock); =09=09nr--; =09} @@ -191,10 +191,10 @@ static long cmm_free_pages(long nr) =09=09=09break; =09=09plpar_page_set_active(page); =09=09list_del(&page->lru); +=09=09adjust_managed_page_count(page, 1); =09=09__free_page(page); =09=09loaned_pages--; =09=09nr--; -=09=09totalram_pages_inc(); =09} =09spin_unlock(&cmm_lock); =09cmm_dbg("End request with %ld pages unfulfilled\n", nr); @@ -518,10 +518,10 @@ static int cmm_mem_going_offline(void *arg) =09=09=09continue; =09=09plpar_page_set_active(page); =09=09list_del(&page->lru); +=09=09adjust_managed_page_count(page, 1); =09=09__free_page(page); =09=09freed++; =09=09loaned_pages--; -=09=09totalram_pages_inc(); =09} =20 =09spin_unlock(&cmm_lock); --=20 2.21.0