From nobody Tue Nov 26 09:23:53 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1709555452619329.74197320473013; Mon, 4 Mar 2024 04:30:52 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rh7Rl-0008QW-NZ; Mon, 04 Mar 2024 07:29:33 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rh7Ri-0008PF-3g for qemu-devel@nongnu.org; Mon, 04 Mar 2024 07:29:30 -0500 Received: from mail.ozlabs.org ([2404:9400:2221:ea00::3] helo=gandalf.ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rh7Rf-0004cA-A6 for qemu-devel@nongnu.org; Mon, 04 Mar 2024 07:29:29 -0500 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4TpJ0h3W1Jz4wys; Mon, 4 Mar 2024 23:29:24 +1100 (AEDT) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4TpJ0d4J2pz4wqN; Mon, 4 Mar 2024 23:29:21 +1100 (AEDT) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Peter Xu , Fabiano Rosas , Alex Williamson , Avihai Horon , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Markus Armbruster , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PATCH v3 09/26] migration: Do not call PRECOPY_NOTIFY_SETUP notifiers in case of error Date: Mon, 4 Mar 2024 13:28:27 +0100 Message-ID: <20240304122844.1888308-10-clg@redhat.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240304122844.1888308-1-clg@redhat.com> References: <20240304122844.1888308-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2404:9400:2221:ea00::3; envelope-from=SRS0=mkh8=KK=redhat.com=clg@ozlabs.org; helo=gandalf.ozlabs.org X-Spam_score_int: -39 X-Spam_score: -4.0 X-Spam_bar: ---- X-Spam_report: (-4.0 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1709555454537100001 When commit bd2270608fa0 ("migration/ram.c: add a notifier chain for precopy") added PRECOPY_NOTIFY_SETUP notifiers at the end of qemu_savevm_state_setup(), it didn't take into account a possible error in the loop calling vmstate_save() or .save_setup() handlers. Check ret value before calling the notifiers. Reviewed-by: Peter Xu Signed-off-by: C=C3=A9dric Le Goater --- migration/savevm.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/migration/savevm.c b/migration/savevm.c index c3642fac9dad3e314fe3fd5058889db1d2cecd47..31ce9391d49c825d4ec835e26ac= 0246e192783a0 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -1314,7 +1314,7 @@ void qemu_savevm_state_setup(QEMUFile *f) MigrationState *ms =3D migrate_get_current(); SaveStateEntry *se; Error *local_err =3D NULL; - int ret; + int ret =3D 0; =20 json_writer_int64(ms->vmdesc, "page_size", qemu_target_page_size()); json_writer_start_array(ms->vmdesc, "devices"); @@ -1350,6 +1350,10 @@ void qemu_savevm_state_setup(QEMUFile *f) } } =20 + if (ret) { + return; + } + if (precopy_notify(PRECOPY_NOTIFY_SETUP, &local_err)) { error_report_err(local_err); } --=20 2.44.0