From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:41295) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TF3uO-0001wP-SH for qemu-devel@nongnu.org; Fri, 21 Sep 2012 10:08:51 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TF3uN-0007Mo-Q5 for qemu-devel@nongnu.org; Fri, 21 Sep 2012 10:08:44 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60197) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TF3uN-0007Mf-ID for qemu-devel@nongnu.org; Fri, 21 Sep 2012 10:08:43 -0400 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q8LE8gqk007592 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 21 Sep 2012 10:08:43 -0400 From: Juan Quintela Date: Fri, 21 Sep 2012 16:08:15 +0200 Message-Id: <1348236500-2565-10-git-send-email-quintela@redhat.com> In-Reply-To: <1348236500-2565-1-git-send-email-quintela@redhat.com> References: <1348236500-2565-1-git-send-email-quintela@redhat.com> Subject: [Qemu-devel] [PATCH 09/14] migration: take finer locking List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Instead of locking the whole migration_thread inside loop, just lock migration_fd_put_notify, that is what interacts with the rest of the world. Signed-off-by: Juan Quintela --- buffered_file.c | 2 -- migration.c | 5 +++++ 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/buffered_file.c b/buffered_file.c index 2c9859b..22b973f 100644 --- a/buffered_file.c +++ b/buffered_file.c @@ -215,9 +215,7 @@ static void *buffered_file_thread(void *opaque) /* usleep expects microseconds */ usleep((expire_time - current_time)*1000); } - qemu_mutex_lock_iothread(); buffered_put_buffer(s, NULL, 0, 0); - qemu_mutex_unlock_iothread(); } g_free(s->buffer); g_free(s); diff --git a/migration.c b/migration.c index 29ee710..82c2663 100644 --- a/migration.c +++ b/migration.c @@ -305,8 +305,10 @@ void migrate_fd_put_ready(MigrationState *s) int ret; static bool first_time = true; + qemu_mutex_lock_iothread(); if (s->state != MIG_STATE_ACTIVE) { DPRINTF("put_ready returning because of non-active state\n"); + qemu_mutex_unlock_iothread(); return; } if (first_time) { @@ -316,6 +318,7 @@ void migrate_fd_put_ready(MigrationState *s) if (ret < 0) { DPRINTF("failed, %d\n", ret); migrate_fd_error(s); + qemu_mutex_unlock_iothread(); return; } } @@ -351,6 +354,8 @@ void migrate_fd_put_ready(MigrationState *s) } } } + qemu_mutex_unlock_iothread(); + } static void migrate_fd_cancel(MigrationState *s) -- 1.7.11.4