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=-4.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLACK autolearn=no 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 700E7C34047 for ; Wed, 19 Feb 2020 16:34:17 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EB1F624654 for ; Wed, 19 Feb 2020 16:34:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="iahHEdxm" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EB1F624654 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:55904 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j4SIh-0007Fw-QY for qemu-devel@archiver.kernel.org; Wed, 19 Feb 2020 11:34:15 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:37944) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j4Rwo-00059D-92 for qemu-devel@nongnu.org; Wed, 19 Feb 2020 11:11:39 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j4Rwk-0001cG-0v for qemu-devel@nongnu.org; Wed, 19 Feb 2020 11:11:36 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:47127 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j4Rwi-0001aj-W5 for qemu-devel@nongnu.org; Wed, 19 Feb 2020 11:11:33 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1582128689; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=//zYQxrlOPLGGJ2M/X0qZqb7Udk4IsxR6OPbv5I6dAE=; b=iahHEdxmeSe+dMfFbG89X9EKu6SUxbQ/a8NfPnNJr2THWFgTqvcbGV2ZNQU0FhX1vHCqst C4W2mH6uAYK/ROi5pGneOSTwy+2PeWGaCYlOw7bk4F79HzOANPNk60eaQpI9017ppbLN9D Ty4A3YIrqsEGKa0PhZpifIDSCJ+62fY= 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-373-FRWjjerpNk-U-pnrIq8WyQ-1; Wed, 19 Feb 2020 11:11:23 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id F19B610BABE8; Wed, 19 Feb 2020 16:11:21 +0000 (UTC) Received: from dell-r430-03.lab.eng.brq.redhat.com (dell-r430-03.lab.eng.brq.redhat.com [10.37.153.18]) by smtp.corp.redhat.com (Postfix) with ESMTP id BB6EB48; Wed, 19 Feb 2020 16:11:19 +0000 (UTC) From: Igor Mammedov To: qemu-devel@nongnu.org Subject: [PATCH v6 73/79] exec: cleanup qemu_minrampagesize()/qemu_maxrampagesize() Date: Wed, 19 Feb 2020 11:09:47 -0500 Message-Id: <20200219160953.13771-74-imammedo@redhat.com> In-Reply-To: <20200219160953.13771-1-imammedo@redhat.com> References: <20200219160953.13771-1-imammedo@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-MC-Unique: FRWjjerpNk-U-pnrIq8WyQ-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: thuth@redhat.com, aik@ozlabs.ru, mdroth@linux.vnet.ibm.com, qemu-ppc@nongnu.org, Paolo Bonzini , rth@twiddle.net, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Since all RAM is backed by hostmem backends, drop global -mem-path invariant and simplify code. Signed-off-by: Igor Mammedov Reviewed-by: David Gibson Reviewed-by: Richard Henderson --- v4: * fix access to uninitialized pagesize/hpsize (David Gibson ) CC: thuth@redhat.com CC: aik@ozlabs.ru CC: mdroth@linux.vnet.ibm.com CC: david@gibson.dropbear.id.au CC: qemu-ppc@nongnu.org CC: pbonzini@redhat.com CC: rth@twiddle.net --- exec.c | 49 ++++--------------------------------------------- 1 file changed, 4 insertions(+), 45 deletions(-) diff --git a/exec.c b/exec.c index 8e9cc3b47c..d85a8689d4 100644 --- a/exec.c +++ b/exec.c @@ -1667,59 +1667,18 @@ static int find_max_backend_pagesize(Object *obj, v= oid *opaque) long qemu_minrampagesize(void) { long hpsize =3D LONG_MAX; - long mainrampagesize; - Object *memdev_root; - MachineState *ms =3D MACHINE(qdev_get_machine()); - - mainrampagesize =3D qemu_mempath_getpagesize(mem_path); - - /* it's possible we have memory-backend objects with - * hugepage-backed RAM. these may get mapped into system - * address space via -numa parameters or memory hotplug - * hooks. we want to take these into account, but we - * also want to make sure these supported hugepage - * sizes are applicable across the entire range of memory - * we may boot from, so we take the min across all - * backends, and assume normal pages in cases where a - * backend isn't backed by hugepages. - */ - memdev_root =3D object_resolve_path("/objects", NULL); - if (memdev_root) { - object_child_foreach(memdev_root, find_min_backend_pagesize, &hpsi= ze); - } - if (hpsize =3D=3D LONG_MAX) { - /* No additional memory regions found =3D=3D> Report main RAM page= size */ - return mainrampagesize; - } - - /* If NUMA is disabled or the NUMA nodes are not backed with a - * memory-backend, then there is at least one node using "normal" RAM, - * so if its page size is smaller we have got to report that size inst= ead. - */ - if (hpsize > mainrampagesize && - (ms->numa_state =3D=3D NULL || - ms->numa_state->num_nodes =3D=3D 0 || - ms->numa_state->nodes[0].node_memdev =3D=3D NULL)) { - static bool warned; - if (!warned) { - error_report("Huge page support disabled (n/a for main memory)= ."); - warned =3D true; - } - return mainrampagesize; - } + Object *memdev_root =3D object_resolve_path("/objects", NULL); =20 + object_child_foreach(memdev_root, find_min_backend_pagesize, &hpsize); return hpsize; } =20 long qemu_maxrampagesize(void) { - long pagesize =3D qemu_mempath_getpagesize(mem_path); + long pagesize =3D 0; Object *memdev_root =3D object_resolve_path("/objects", NULL); =20 - if (memdev_root) { - object_child_foreach(memdev_root, find_max_backend_pagesize, - &pagesize); - } + object_child_foreach(memdev_root, find_max_backend_pagesize, &pagesize= ); return pagesize; } #else --=20 2.18.1