From nobody Tue Nov 26 09:50:40 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=pass(p=none dis=none) header.from=suse.de ARC-Seal: i=1; a=rsa-sha256; t=1708979565; cv=none; d=zohomail.com; s=zohoarc; b=ZmjY81khmpvjl9Gr32COzt0aC9B1xYK98GVD1i44EXnPwhmmRz2jB0hitNe3GkCSgZhlhqjDzIE7gQhJNGUdHHHwED+g6hlF/jzJJ4XbpGNsfnu4ld6wSaekUIa6vQ6g4Vm2hSceu62aS83kFY080EPcAXbaST+s2nXkhMeL5B4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1708979565; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=rkYAKUbIVXfvlnyqRX1w3xvaidp9O1g9QosMrFa8HGU=; b=RMbeukyVelSISsqeiCqywxvypPTroF1aw2Yxl/KoLpVKk+gTMmlUvTTan9nQYAHlY2U8HHc9up/tWXiJOdXEEe0JJD1jqAh1g6pBfBhch55UxDsG0LBxGPFnpOOpDDd3W9i4jpnZJk5UwwT4Lc2nvsefSQufQiPDAOYcKpCKjyw= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1708979565217253.53942028316214; Mon, 26 Feb 2024 12:32:45 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rehdV-00058f-0s; Mon, 26 Feb 2024 15:31:41 -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 1rehdM-00057I-Fb for qemu-devel@nongnu.org; Mon, 26 Feb 2024 15:31:34 -0500 Received: from smtp-out2.suse.de ([2a07:de40:b251:101:10:150:64:2]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rehdK-0001mL-Ql for qemu-devel@nongnu.org; Mon, 26 Feb 2024 15:31:32 -0500 Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [10.150.64.97]) (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 smtp-out2.suse.de (Postfix) with ESMTPS id 79AE21FB6D; Mon, 26 Feb 2024 20:31:29 +0000 (UTC) Received: from imap1.dmz-prg2.suse.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 imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 54A9113A3A; Mon, 26 Feb 2024 20:31:28 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap1.dmz-prg2.suse.org with ESMTPSA id OEU/ByD13GWJSgAAD6G6ig (envelope-from ); Mon, 26 Feb 2024 20:31:28 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1708979489; h=from:from:reply-to: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=rkYAKUbIVXfvlnyqRX1w3xvaidp9O1g9QosMrFa8HGU=; b=d8ga6ytykxrNyG5HkpWysGgSmmLgxYug74MxF3GGOJHZqyv1UD+ovTH5PBUrmbU698gntg qeGIqS323W7U/r/hgFLXwbQlf3JeAyakYOzzY6aZwCDpT/lrb60yhp/sOFM46C1WrjTkry onY3fzIChsZWjLXzmKDbmwUD7DGTxek= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1708979489; h=from:from:reply-to: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=rkYAKUbIVXfvlnyqRX1w3xvaidp9O1g9QosMrFa8HGU=; b=l9h0AU9YNCqthciVh/pusJPGWdfDguLzUfnXEfzEx6z65+Bop2B9eDjKw9KuTQaFjMjho5 sIWW8sonwXDm+sCA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1708979489; h=from:from:reply-to: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=rkYAKUbIVXfvlnyqRX1w3xvaidp9O1g9QosMrFa8HGU=; b=d8ga6ytykxrNyG5HkpWysGgSmmLgxYug74MxF3GGOJHZqyv1UD+ovTH5PBUrmbU698gntg qeGIqS323W7U/r/hgFLXwbQlf3JeAyakYOzzY6aZwCDpT/lrb60yhp/sOFM46C1WrjTkry onY3fzIChsZWjLXzmKDbmwUD7DGTxek= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1708979489; h=from:from:reply-to: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=rkYAKUbIVXfvlnyqRX1w3xvaidp9O1g9QosMrFa8HGU=; b=l9h0AU9YNCqthciVh/pusJPGWdfDguLzUfnXEfzEx6z65+Bop2B9eDjKw9KuTQaFjMjho5 sIWW8sonwXDm+sCA== From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Peter Xu Subject: [PATCH 2/2] migration: Use migrate_has_error() in close_return_path_on_source() Date: Mon, 26 Feb 2024 17:31:22 -0300 Message-Id: <20240226203122.22894-3-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20240226203122.22894-1-farosas@suse.de> References: <20240226203122.22894-1-farosas@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Authentication-Results: smtp-out2.suse.de; none X-Spamd-Result: default: False [-2.09 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; MID_CONTAINS_FROM(1.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; BAYES_HAM(-2.99)[99.96%] X-Spam-Score: -2.09 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=2a07:de40:b251:101:10:150:64:2; envelope-from=farosas@suse.de; helo=smtp-out2.suse.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=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-ZohoMail-DKIM: pass (identity @suse.de) X-ZM-MESSAGEID: 1708979566470100009 From: C=C3=A9dric Le Goater close_return_path_on_source() retrieves the migration error from the the QEMUFile '->to_dst_file' to know if a shutdown is required. This shutdown is required to exit the return-path thread. Avoid relying on '->to_dst_file' and use migrate_has_error() instead. (using to_dst_file is a heuristic to infer whether rp_state.from_dst_file might be stuck on a recvmsg(). Using a generic method for detecting errors is more reliable. We also want to reduce dependency on QEMUFile::last_error) Suggested-by: Peter Xu Signed-off-by: C=C3=A9dric Le Goater Reviewed-by: Peter Xu [added some words about the motivation for this patch] Signed-off-by: Fabiano Rosas --- migration/migration.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/migration/migration.c b/migration/migration.c index 3161be7cde..5316bbe670 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -2380,8 +2380,7 @@ static bool close_return_path_on_source(MigrationStat= e *ms) * cause it to unblock if it's stuck waiting for the destination. */ WITH_QEMU_LOCK_GUARD(&ms->qemu_file_lock) { - if (ms->to_dst_file && ms->rp_state.from_dst_file && - qemu_file_get_error(ms->to_dst_file)) { + if (migrate_has_error(ms) && ms->rp_state.from_dst_file) { qemu_file_shutdown(ms->rp_state.from_dst_file); } } --=20 2.35.3