From patchwork Thu Feb 9 23:34:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juan Quintela X-Patchwork-Id: 13135222 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F1B1C6379F for ; Thu, 9 Feb 2023 23:36:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230380AbjBIXgg (ORCPT ); Thu, 9 Feb 2023 18:36:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42768 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231140AbjBIXgR (ORCPT ); Thu, 9 Feb 2023 18:36:17 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0D9676D8EC for ; Thu, 9 Feb 2023 15:35:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1675985693; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/nVclr4N9SFx1UWc5O7PD4B6RVJwA7LG7li4dZgPkhY=; b=LcdsZGhy7/053NyfegLnMWx3kFmNdZdpN7Bkwd2aMOv9Hw20/My987hwaoMqshRaDOMRCk Nd/EDJAJqV1cedqD41xfSIOQQkHqaF78kMb85JZJsL+FplBZNPRk/mHggFtxK7g1qyXlqq xardzk43PC6kb3bkvnfZDK6hl3tzgtU= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-184-X8yXQ9yAPQiTU9RFvLeccA-1; Thu, 09 Feb 2023 18:34:52 -0500 X-MC-Unique: X8yXQ9yAPQiTU9RFvLeccA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id D365E858F09; Thu, 9 Feb 2023 23:34:51 +0000 (UTC) Received: from secure.mitica (unknown [10.39.192.29]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0A29E175AD; Thu, 9 Feb 2023 23:34:49 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Cc: kvm@vger.kernel.org, =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Juan Quintela , "Dr. David Alan Gilbert" , =?utf-8?q?Daniel_P=2E_Berra?= =?utf-8?q?ng=C3=A9?= , Paolo Bonzini , Cornelia Huck , "Michael S. Tsirkin" , Thomas Huth , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= Subject: [PULL 10/17] migration: Make ram_save_target_page() a pointer Date: Fri, 10 Feb 2023 00:34:19 +0100 Message-Id: <20230209233426.37811-11-quintela@redhat.com> In-Reply-To: <20230209233426.37811-1-quintela@redhat.com> References: <20230209233426.37811-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org We are going to create a new function for multifd latest in the series. Signed-off-by: Juan Quintela Reviewed-by: Dr. David Alan Gilbert --- migration/ram.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/migration/ram.c b/migration/ram.c index d108bf6951..ed5e0969f2 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -452,6 +452,13 @@ void dirty_sync_missed_zero_copy(void) ram_counters.dirty_sync_missed_zero_copy++; } +struct MigrationOps { + int (*ram_save_target_page)(RAMState *rs, PageSearchStatus *pss); +}; +typedef struct MigrationOps MigrationOps; + +MigrationOps *migration_ops; + CompressionStats compression_counters; struct CompressParam { @@ -2295,14 +2302,14 @@ static bool save_compress_page(RAMState *rs, PageSearchStatus *pss, } /** - * ram_save_target_page: save one target page + * ram_save_target_page_legacy: save one target page * * Returns the number of pages written * * @rs: current RAM state * @pss: data about the page we want to send */ -static int ram_save_target_page(RAMState *rs, PageSearchStatus *pss) +static int ram_save_target_page_legacy(RAMState *rs, PageSearchStatus *pss) { RAMBlock *block = pss->block; ram_addr_t offset = ((ram_addr_t)pss->page) << TARGET_PAGE_BITS; @@ -2428,7 +2435,7 @@ static int ram_save_host_page_urgent(PageSearchStatus *pss) if (page_dirty) { /* Be strict to return code; it must be 1, or what else? */ - if (ram_save_target_page(rs, pss) != 1) { + if (migration_ops->ram_save_target_page(rs, pss) != 1) { error_report_once("%s: ram_save_target_page failed", __func__); ret = -1; goto out; @@ -2497,7 +2504,7 @@ static int ram_save_host_page(RAMState *rs, PageSearchStatus *pss) if (preempt_active) { qemu_mutex_unlock(&rs->bitmap_mutex); } - tmppages = ram_save_target_page(rs, pss); + tmppages = migration_ops->ram_save_target_page(rs, pss); if (tmppages >= 0) { pages += tmppages; /* @@ -2697,6 +2704,8 @@ static void ram_save_cleanup(void *opaque) xbzrle_cleanup(); compress_threads_save_cleanup(); ram_state_cleanup(rsp); + g_free(migration_ops); + migration_ops = NULL; } static void ram_state_reset(RAMState *rs) @@ -3252,6 +3261,8 @@ static int ram_save_setup(QEMUFile *f, void *opaque) ram_control_before_iterate(f, RAM_CONTROL_SETUP); ram_control_after_iterate(f, RAM_CONTROL_SETUP); + migration_ops = g_malloc0(sizeof(MigrationOps)); + migration_ops->ram_save_target_page = ram_save_target_page_legacy; ret = multifd_send_sync_main(f); if (ret < 0) { return ret;