From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47750) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ea4PR-0001oK-0n for qemu-devel@nongnu.org; Fri, 12 Jan 2018 13:50:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ea4PM-0004Yl-BX for qemu-devel@nongnu.org; Fri, 12 Jan 2018 13:50:33 -0500 Received: from mx1.redhat.com ([209.132.183.28]:57760) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ea4PL-0004Xc-Qi for qemu-devel@nongnu.org; Fri, 12 Jan 2018 13:50:28 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D227E130F for ; Fri, 12 Jan 2018 18:50:26 +0000 (UTC) Date: Fri, 12 Jan 2018 18:50:20 +0000 From: "Dr. David Alan Gilbert" Message-ID: <20180112185019.GC2309@work-vm> References: <20180110124723.11879-1-quintela@redhat.com> <20180110124723.11879-2-quintela@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180110124723.11879-2-quintela@redhat.com> Subject: Re: [Qemu-devel] [PATCH v10 01/14] migration: Make migrate_fd_error() the owner of the Error List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Juan Quintela Cc: qemu-devel@nongnu.org, lvivier@redhat.com, peterx@redhat.com * Juan Quintela (quintela@redhat.com) wrote: > So far, we had to free the error after each caller, so just do it > here. Once there, tls.c was leaking the error. > > Signed-off-by: Juan Quintela This clashes a bit with my 'Route errors down through migration_channel_connect' 'Allow migrate_fd_connect to take an Error *' pair; I think they also clean up the leak and actually end up displaying the error. Dave > --- > migration/channel.c | 1 - > migration/migration.c | 10 ++++------ > migration/migration.h | 4 ++-- > migration/socket.c | 1 - > 4 files changed, 6 insertions(+), 10 deletions(-) > > diff --git a/migration/channel.c b/migration/channel.c > index 70ec7ea3b7..1dd2ae1530 100644 > --- a/migration/channel.c > +++ b/migration/channel.c > @@ -71,7 +71,6 @@ void migration_channel_connect(MigrationState *s, > migration_tls_channel_connect(s, ioc, hostname, &local_err); > if (local_err) { > migrate_fd_error(s, local_err); > - error_free(local_err); > } > } else { > QEMUFile *f = qemu_fopen_channel_output(ioc); > diff --git a/migration/migration.c b/migration/migration.c > index a5be4592a6..085e88c625 100644 > --- a/migration/migration.c > +++ b/migration/migration.c > @@ -1159,16 +1159,14 @@ static void migrate_fd_cleanup(void *opaque) > block_cleanup_parameters(s); > } > > -void migrate_set_error(MigrationState *s, const Error *error) > +void migrate_set_error(MigrationState *s, Error *error) > { > qemu_mutex_lock(&s->error_mutex); > - if (!s->error) { > - s->error = error_copy(error); > - } > + error_propagate(&s->error, error); > qemu_mutex_unlock(&s->error_mutex); > } > > -void migrate_fd_error(MigrationState *s, const Error *error) > +void migrate_fd_error(MigrationState *s, Error *error) > { > trace_migrate_fd_error(error_get_pretty(error)); > assert(s->to_dst_file == NULL); > @@ -1448,7 +1446,7 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk, > } > > if (local_err) { > - migrate_fd_error(s, local_err); > + migrate_fd_error(s, error_copy(local_err)); > error_propagate(errp, local_err); > return; > } > diff --git a/migration/migration.h b/migration/migration.h > index 2c8c53847a..29a7b79a39 100644 > --- a/migration/migration.h > +++ b/migration/migration.h > @@ -177,8 +177,8 @@ bool migration_has_all_channels(void); > > uint64_t migrate_max_downtime(void); > > -void migrate_set_error(MigrationState *s, const Error *error); > -void migrate_fd_error(MigrationState *s, const Error *error); > +void migrate_set_error(MigrationState *s, Error *error); > +void migrate_fd_error(MigrationState *s, Error *error); > > void migrate_fd_connect(MigrationState *s); > > diff --git a/migration/socket.c b/migration/socket.c > index 248a798543..6d49903978 100644 > --- a/migration/socket.c > +++ b/migration/socket.c > @@ -81,7 +81,6 @@ static void socket_outgoing_migration(QIOTask *task, > if (qio_task_propagate_error(task, &err)) { > trace_migration_socket_outgoing_error(error_get_pretty(err)); > migrate_fd_error(data->s, err); > - error_free(err); > } else { > trace_migration_socket_outgoing_connected(data->hostname); > migration_channel_connect(data->s, sioc, data->hostname); > -- > 2.14.3 > -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK