From patchwork Wed Aug 16 14:25:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabiano Rosas X-Patchwork-Id: 1821871 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=suse.de header.i=@suse.de header.a=rsa-sha256 header.s=susede2_rsa header.b=sXKigsg0; dkim=pass header.d=suse.de header.i=@suse.de header.a=ed25519-sha256 header.s=susede2_ed25519 header.b=V8ENgObP; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RQr8m4vTfz1yXY for ; Thu, 17 Aug 2023 00:28:24 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qWHSm-0004Ei-Fh; Wed, 16 Aug 2023 10:25:32 -0400 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 1qWHSl-0004CZ-Jq for qemu-devel@nongnu.org; Wed, 16 Aug 2023 10:25:31 -0400 Received: from smtp-out1.suse.de ([195.135.220.28]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qWHSj-0003nr-3U for qemu-devel@nongnu.org; Wed, 16 Aug 2023 10:25:31 -0400 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 0EB85211AE; Wed, 16 Aug 2023 14:25:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1692195928; h=from:from:reply-to: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=DGhGE717fUJFvyUY5vhbyY/GLiHbUzH5b0cd6j63xVg=; b=sXKigsg0Uvi1sIiHxKJHLSbbF7vU2X2kJf+2VuxA70kHbsVO0K1pSHMNgXA2hh1Yfoe20J IE1uisSmeNC4+uHkf40hsqBUg2xLtGzKOvLMXgCU/u13gDuCeubi6WrhgoglnH9EJejCxo FnEHJ822ZelwZh6Vt2705LHEnV7N0YQ= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1692195928; h=from:from:reply-to: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=DGhGE717fUJFvyUY5vhbyY/GLiHbUzH5b0cd6j63xVg=; b=V8ENgObPzOl/SoSeAfxbcbekXhazIcjgw/bjbVHQvVTxxACIsoj6sNFEkVkAxvC+ZlJsTS thu0aElSUSzma1BQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 8402C133F2; Wed, 16 Aug 2023 14:25:26 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id kLekE1bc3GShdwAAMHmgww (envelope-from ); Wed, 16 Aug 2023 14:25:26 +0000 From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: Juan Quintela , Peter Xu , Wei Wang , Leonardo Bras Subject: [PATCH v4 7/8] migration: Move return path cleanup to main migration thread Date: Wed, 16 Aug 2023 11:25:09 -0300 Message-Id: <20230816142510.5637-8-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230816142510.5637-1-farosas@suse.de> References: <20230816142510.5637-1-farosas@suse.de> MIME-Version: 1.0 Received-SPF: pass client-ip=195.135.220.28; envelope-from=farosas@suse.de; helo=smtp-out1.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 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Now that the return path thread is allowed to finish during a paused migration, we can move the cleanup of the QEMUFiles to the main migration thread. Reviewed-by: Peter Xu Signed-off-by: Fabiano Rosas --- migration/migration.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/migration/migration.c b/migration/migration.c index 7dfcbc3634..7fec57ad7f 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -98,6 +98,7 @@ static int migration_maybe_pause(MigrationState *s, int *current_active_state, int new_state); static void migrate_fd_cancel(MigrationState *s); +static int await_return_path_close_on_source(MigrationState *s); static bool migration_needs_multiple_sockets(void) { @@ -1177,6 +1178,12 @@ static void migrate_fd_cleanup(MigrationState *s) qemu_fclose(tmp); } + /* + * We already cleaned up to_dst_file, so errors from the return + * path might be due to that, ignore them. + */ + await_return_path_close_on_source(s); + assert(!migration_is_active(s)); if (s->state == MIGRATION_STATUS_CANCELLING) { @@ -1985,7 +1992,6 @@ out: } trace_source_return_path_thread_end(); - migration_release_dst_files(ms); rcu_unregister_thread(); return NULL; } @@ -2039,6 +2045,9 @@ static int await_return_path_close_on_source(MigrationState *ms) ret = ms->rp_state.error; ms->rp_state.error = false; + + migration_release_dst_files(ms); + trace_migration_return_path_end_after(ret); return ret; }