From nobody Fri Jul 4 23:32:37 2025 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.zoho.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; Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1486400055766797.8246727228404; Mon, 6 Feb 2017 08:54:15 -0800 (PST) Received: from localhost ([::1]:49508 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1camYP-0005UC-Ea for importer@patchew.org; Mon, 06 Feb 2017 11:54:13 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35228) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1camWO-00047R-6G for qemu-devel@nongnu.org; Mon, 06 Feb 2017 11:52:09 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1camWM-0005kG-0x for qemu-devel@nongnu.org; Mon, 06 Feb 2017 11:52:08 -0500 Received: from mx1.redhat.com ([209.132.183.28]:48406) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1camWL-0005jq-Of for qemu-devel@nongnu.org; Mon, 06 Feb 2017 11:52:05 -0500 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id CF3B480F9B for ; Mon, 6 Feb 2017 16:52:05 +0000 (UTC) Received: from emacs.mitica (ovpn-116-74.ams2.redhat.com [10.36.116.74]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v16Gq2Ml021125; Mon, 6 Feb 2017 11:52:04 -0500 From: Juan Quintela To: qemu-devel@nongnu.org Date: Mon, 6 Feb 2017 17:51:44 +0100 Message-Id: <1486399909-16338-2-git-send-email-quintela@redhat.com> In-Reply-To: <1486399909-16338-1-git-send-email-quintela@redhat.com> References: <1486399909-16338-1-git-send-email-quintela@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Mon, 06 Feb 2017 16:52:05 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 1/6] migration: create Migration Incoming State at init time 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: amit.shah@redhat.com, dgilbert@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" Signed-off-by: Juan Quintela Reviewed-by: Dr. David Alan Gilbert Message-Id: <1485207141-1941-3-git-send-email-quintela@redhat.com> Signed-off-by: Juan Quintela --- include/migration/migration.h | 1 - migration/migration.c | 38 +++++++++++++++++--------------------- migration/savevm.c | 4 ++-- 3 files changed, 19 insertions(+), 24 deletions(-) diff --git a/include/migration/migration.h b/include/migration/migration.h index af9135f..7528cc2 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -122,7 +122,6 @@ struct MigrationIncomingState { }; MigrationIncomingState *migration_incoming_get_current(void); -MigrationIncomingState *migration_incoming_state_new(QEMUFile *f); void migration_incoming_state_destroy(void); /* diff --git a/migration/migration.c b/migration/migration.c index 2766d2f..619ccc4 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -111,32 +111,28 @@ MigrationState *migrate_get_current(void) return ¤t_migration; } -/* For incoming */ -static MigrationIncomingState *mis_current; - MigrationIncomingState *migration_incoming_get_current(void) { - return mis_current; -} + static bool once; + static MigrationIncomingState mis_current; -MigrationIncomingState *migration_incoming_state_new(QEMUFile* f) -{ - mis_current =3D g_new0(MigrationIncomingState, 1); - mis_current->from_src_file =3D f; - mis_current->state =3D MIGRATION_STATUS_NONE; - QLIST_INIT(&mis_current->loadvm_handlers); - qemu_mutex_init(&mis_current->rp_mutex); - qemu_event_init(&mis_current->main_thread_load_event, false); - - return mis_current; + if (!once) { + mis_current.state =3D MIGRATION_STATUS_NONE; + memset(&mis_current, 0, sizeof(MigrationIncomingState)); + QLIST_INIT(&mis_current.loadvm_handlers); + qemu_mutex_init(&mis_current.rp_mutex); + qemu_event_init(&mis_current.main_thread_load_event, false); + once =3D true; + } + return &mis_current; } void migration_incoming_state_destroy(void) { - qemu_event_destroy(&mis_current->main_thread_load_event); - loadvm_free_handlers(mis_current); - g_free(mis_current); - mis_current =3D NULL; + struct MigrationIncomingState *mis =3D migration_incoming_get_current(= ); + + qemu_event_destroy(&mis->main_thread_load_event); + loadvm_free_handlers(mis); } @@ -382,11 +378,11 @@ static void process_incoming_migration_bh(void *opaqu= e) static void process_incoming_migration_co(void *opaque) { QEMUFile *f =3D opaque; - MigrationIncomingState *mis; + MigrationIncomingState *mis =3D migration_incoming_get_current(); PostcopyState ps; int ret; - mis =3D migration_incoming_state_new(f); + mis->from_src_file =3D f; postcopy_state_set(POSTCOPY_INCOMING_NONE); migrate_set_state(&mis->state, MIGRATION_STATUS_NONE, MIGRATION_STATUS_ACTIVE); diff --git a/migration/savevm.c b/migration/savevm.c index 204012e..f3644ca 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2199,7 +2199,6 @@ void qmp_xen_load_devices_state(const char *filename,= Error **errp) qio_channel_set_name(QIO_CHANNEL(ioc), "migration-xen-load-state"); f =3D qemu_fopen_channel_input(QIO_CHANNEL(ioc)); - migration_incoming_state_new(f); ret =3D qemu_loadvm_state(f); qemu_fclose(f); if (ret < 0) { @@ -2215,6 +2214,7 @@ int load_vmstate(const char *name) QEMUFile *f; int ret; AioContext *aio_context; + MigrationIncomingState *mis =3D migration_incoming_get_current(); if (!bdrv_all_can_snapshot(&bs)) { error_report("Device '%s' is writable but does not support snapsho= ts.", @@ -2265,7 +2265,7 @@ int load_vmstate(const char *name) } qemu_system_reset(VMRESET_SILENT); - migration_incoming_state_new(f); + mis->from_src_file =3D f; aio_context_acquire(aio_context); ret =3D qemu_loadvm_state(f); --=20 2.7.4