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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 32845C4332F for ; Tue, 11 Jan 2022 13:47:23 +0000 (UTC) Received: from localhost ([::1]:54336 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n7HUg-0001Ct-AZ for qemu-devel@archiver.kernel.org; Tue, 11 Jan 2022 08:47:22 -0500 Received: from eggs.gnu.org ([209.51.188.92]:51340) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n7Glr-0004vJ-3J for qemu-devel@nongnu.org; Tue, 11 Jan 2022 08:01:03 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:21095) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n7Glo-0005hu-Dr for qemu-devel@nongnu.org; Tue, 11 Jan 2022 08:01:01 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1641906059; 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=1khIyfNNFWc9VNX4/2nGIMdiIvZ8naJgz6DXohUCbMM=; b=BjD3MldvW1e+gc08zT6yf4KUsBksXJLgsgoEuPnozELjj4g+K+Hw/bEmYuDHhW/7ATTAp9 Ls596LXg/ojkVz79zKwNXkWSYBet3GF5hXwIGTXeBka7aZmS761k7qzwhJKiiJ/KFEHy5u PPQ6nT/88DoQlcKpGIAz+nkvObn1iFA= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-159-PxSiQin3OeGXWUDwOVoMaQ-1; Tue, 11 Jan 2022 08:00:56 -0500 X-MC-Unique: PxSiQin3OeGXWUDwOVoMaQ-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 75C31100B79B; Tue, 11 Jan 2022 13:00:55 +0000 (UTC) Received: from secure.mitica (unknown [10.39.194.176]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8AF821059179; Tue, 11 Jan 2022 13:00:53 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Subject: [PATCH v4 06/23] migration: Move ram_release_pages() call to save_zero_page_to_file() Date: Tue, 11 Jan 2022 14:00:07 +0100 Message-Id: <20220111130024.5392-7-quintela@redhat.com> In-Reply-To: <20220111130024.5392-1-quintela@redhat.com> References: <20220111130024.5392-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=quintela@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Received-SPF: pass client-ip=170.10.129.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.595, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eduardo Habkost , Juan Quintela , "Dr. David Alan Gilbert" , Peter Xu , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Yanan Wang , Leonardo Bras Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" We always need to call it when we find a zero page, so put it in a single place. Signed-off-by: Juan Quintela Reviewed-by: Peter Xu --- migration/ram.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/migration/ram.c b/migration/ram.c index 422c6bce28..e9dcd3ca4e 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -1158,6 +1158,15 @@ static void migration_bitmap_sync_precopy(RAMState *rs) } } +static void ram_release_page(const char *rbname, uint64_t offset) +{ + if (!migrate_release_ram() || !migration_in_postcopy()) { + return; + } + + ram_discard_range(rbname, offset, TARGET_PAGE_SIZE); +} + /** * save_zero_page_to_file: send the zero page to the file * @@ -1179,6 +1188,7 @@ static int save_zero_page_to_file(RAMState *rs, QEMUFile *file, len += save_page_header(rs, file, block, offset | RAM_SAVE_FLAG_ZERO); qemu_put_byte(file, 0); len += 1; + ram_release_page(block->idstr, offset); } return len; } @@ -1204,15 +1214,6 @@ static int save_zero_page(RAMState *rs, RAMBlock *block, ram_addr_t offset) return -1; } -static void ram_release_page(const char *rbname, uint64_t offset) -{ - if (!migrate_release_ram() || !migration_in_postcopy()) { - return; - } - - ram_discard_range(rbname, offset, TARGET_PAGE_SIZE); -} - /* * @pages: the number of pages written by the control path, * < 0 - error @@ -1344,7 +1345,6 @@ static bool do_compress_ram_page(QEMUFile *f, z_stream *stream, RAMBlock *block, int ret; if (save_zero_page_to_file(rs, f, block, offset)) { - ram_release_page(block->idstr, offset); return true; } @@ -2148,7 +2148,6 @@ static int ram_save_target_page(RAMState *rs, PageSearchStatus *pss) xbzrle_cache_zero_page(rs, block->offset + offset); XBZRLE_cache_unlock(); } - ram_release_page(block->idstr, offset); return res; } -- 2.34.1