From nobody Tue Feb 10 12:39:45 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 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 [208.118.235.17]) by mx.zohomail.com with SMTPS id 152642815583618.32018428399249; Tue, 15 May 2018 16:49:15 -0700 (PDT) Received: from localhost ([::1]:40125 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fIjgp-0000mD-V3 for importer@patchew.org; Tue, 15 May 2018 19:49:07 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58175) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fIjYe-00032S-7J for qemu-devel@nongnu.org; Tue, 15 May 2018 19:40:42 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fIjYc-0001ma-KQ for qemu-devel@nongnu.org; Tue, 15 May 2018 19:40:39 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:56492 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fIjYc-0001mN-F2 for qemu-devel@nongnu.org; Tue, 15 May 2018 19:40:38 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 0EC1E40201A0 for ; Tue, 15 May 2018 23:40:38 +0000 (UTC) Received: from secure.mitica (ovpn-116-62.ams2.redhat.com [10.36.116.62]) by smtp.corp.redhat.com (Postfix) with ESMTP id 085062024CBE; Tue, 15 May 2018 23:40:36 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Date: Wed, 16 May 2018 01:39:50 +0200 Message-Id: <20180515234017.2277-14-quintela@redhat.com> In-Reply-To: <20180515234017.2277-1-quintela@redhat.com> References: <20180515234017.2277-1-quintela@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Tue, 15 May 2018 23:40:38 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Tue, 15 May 2018 23:40:38 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'quintela@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PULL 13/40] migration: let incoming side use thread context X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: lvivier@redhat.com, dgilbert@redhat.com, peterx@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Peter Xu The old incoming migration is running in main thread and default gcontext. With the new qio_channel_add_watch_full() we can now let it run in the thread's own gcontext (if there is one). Currently this patch does nothing alone. But when any of the incoming migration is run in another iothread (e.g., the upcoming migrate-recover command), this patch will bind the incoming logic to the iothread instead of the main thread (which may already get page faulted and hanged). RDMA is not considered for now since it's not even using the QIO watch framework at all. Reviewed-by: Dr. David Alan Gilbert Reviewed-by: Juan Quintela Signed-off-by: Peter Xu Message-Id: <20180502104740.12123-2-peterx@redhat.com> Signed-off-by: Juan Quintela --- migration/exec.c | 9 ++++----- migration/fd.c | 9 ++++----- migration/socket.c | 7 ++++--- 3 files changed, 12 insertions(+), 13 deletions(-) diff --git a/migration/exec.c b/migration/exec.c index 0bc5a427dd..9d0f82f1f0 100644 --- a/migration/exec.c +++ b/migration/exec.c @@ -65,9 +65,8 @@ void exec_start_incoming_migration(const char *command, E= rror **errp) } =20 qio_channel_set_name(ioc, "migration-exec-incoming"); - qio_channel_add_watch(ioc, - G_IO_IN, - exec_accept_incoming_migration, - NULL, - NULL); + qio_channel_add_watch_full(ioc, G_IO_IN, + exec_accept_incoming_migration, + NULL, NULL, + g_main_context_get_thread_default()); } diff --git a/migration/fd.c b/migration/fd.c index cd06182d1e..9a380bbbc4 100644 --- a/migration/fd.c +++ b/migration/fd.c @@ -66,9 +66,8 @@ void fd_start_incoming_migration(const char *infd, Error = **errp) } =20 qio_channel_set_name(QIO_CHANNEL(ioc), "migration-fd-incoming"); - qio_channel_add_watch(ioc, - G_IO_IN, - fd_accept_incoming_migration, - NULL, - NULL); + qio_channel_add_watch_full(ioc, G_IO_IN, + fd_accept_incoming_migration, + NULL, NULL, + g_main_context_get_thread_default()); } diff --git a/migration/socket.c b/migration/socket.c index 7a5eb562b8..3456eb76e9 100644 --- a/migration/socket.c +++ b/migration/socket.c @@ -190,9 +190,10 @@ static void socket_start_incoming_migration(SocketAddr= ess *saddr, return; } =20 - qio_net_listener_set_client_func(listener, - socket_accept_incoming_migration, - NULL, NULL); + qio_net_listener_set_client_func_full(listener, + socket_accept_incoming_migration, + NULL, NULL, + g_main_context_get_thread_defaul= t()); } =20 void tcp_start_incoming_migration(const char *host_port, Error **errp) --=20 2.17.0