From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33665) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cVmE3-00024t-8Y for qemu-devel@nongnu.org; Mon, 23 Jan 2017 16:32:32 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cVmE1-0002ns-TB for qemu-devel@nongnu.org; Mon, 23 Jan 2017 16:32:31 -0500 Received: from mx1.redhat.com ([209.132.183.28]:35022) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cVmE1-0002m2-LC for qemu-devel@nongnu.org; Mon, 23 Jan 2017 16:32:29 -0500 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (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 D25ACC05678D for ; Mon, 23 Jan 2017 21:32:29 +0000 (UTC) From: Juan Quintela Date: Mon, 23 Jan 2017 22:32:06 +0100 Message-Id: <1485207141-1941-3-git-send-email-quintela@redhat.com> In-Reply-To: <1485207141-1941-1-git-send-email-quintela@redhat.com> References: <1485207141-1941-1-git-send-email-quintela@redhat.com> Subject: [Qemu-devel] [PATCH 02/17] migration: create Migration Incoming State at init time List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: amit.shah@redhat.com, dgilbert@redhat.com Signed-off-by: Juan Quintela Reviewed-by: Dr. David Alan Gilbert --- 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 c309d23..a184509 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -119,7 +119,6 @@ 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 f498ab8..77d7b84 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 = g_new0(MigrationIncomingState, 1); - mis_current->from_src_file = f; - mis_current->state = 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 = 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 = 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 = NULL; + struct MigrationIncomingState *mis = 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 *opaque) static void process_incoming_migration_co(void *opaque) { QEMUFile *f = opaque; - MigrationIncomingState *mis; + MigrationIncomingState *mis = migration_incoming_get_current(); PostcopyState ps; int ret; - mis = migration_incoming_state_new(f); + mis->from_src_file = 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 f9c06e9..41a2506 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2185,7 +2185,6 @@ void qmp_xen_load_devices_state(const char *filename, Error **errp) qio_channel_set_name(QIO_CHANNEL(ioc), "migration-xen-load-state"); f = qemu_fopen_channel_input(QIO_CHANNEL(ioc)); - migration_incoming_state_new(f); ret = qemu_loadvm_state(f); qemu_fclose(f); if (ret < 0) { @@ -2201,6 +2200,7 @@ int load_vmstate(const char *name) QEMUFile *f; int ret; AioContext *aio_context; + MigrationIncomingState *mis = migration_incoming_get_current(); if (!bdrv_all_can_snapshot(&bs)) { error_report("Device '%s' is writable but does not support snapshots.", @@ -2251,7 +2251,7 @@ int load_vmstate(const char *name) } qemu_system_reset(VMRESET_SILENT); - migration_incoming_state_new(f); + mis->from_src_file = f; aio_context_acquire(aio_context); ret = qemu_loadvm_state(f); -- 2.9.3