From 5bd57eba041fb62c373f89c311936000c115fdd6 Mon Sep 17 00:00:00 2001 From: Lukas Straub Date: Fri, 22 May 2020 15:53:56 +0800 Subject: [PATCH] net/colo-compare.c: Correct ordering in complete and finalize In colo_compare_complete, insert CompareState into net_compares only after everything has been initialized. In colo_compare_finalize, remove CompareState from net_compares before anything is deinitialized. Signed-off-by: Lukas Straub Reviewed-by: Zhang Chen Signed-off-by: Zhang Chen Signed-off-by: Jason Wang --- net/colo-compare.c | 45 +++++++++++++++++++++++---------------------- 1 file changed, 23 insertions(+), 22 deletions(-) diff --git a/net/colo-compare.c b/net/colo-compare.c index c30dbfb6e6..ed1f3d0af0 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -1283,15 +1283,6 @@ static void colo_compare_complete(UserCreatable *uc, Error **errp) s->vnet_hdr); } - qemu_mutex_lock(&colo_compare_mutex); - if (!colo_compare_active) { - qemu_mutex_init(&event_mtx); - qemu_cond_init(&event_complete_cond); - colo_compare_active = true; - } - QTAILQ_INSERT_TAIL(&net_compares, s, next); - qemu_mutex_unlock(&colo_compare_mutex); - s->out_sendco.s = s; s->out_sendco.chr = &s->chr_out; s->out_sendco.notify_remote_frame = false; @@ -1314,6 +1305,16 @@ static void colo_compare_complete(UserCreatable *uc, Error **errp) connection_destroy); colo_compare_iothread(s); + + qemu_mutex_lock(&colo_compare_mutex); + if (!colo_compare_active) { + qemu_mutex_init(&event_mtx); + qemu_cond_init(&event_complete_cond); + colo_compare_active = true; + } + QTAILQ_INSERT_TAIL(&net_compares, s, next); + qemu_mutex_unlock(&colo_compare_mutex); + return; } @@ -1382,19 +1383,6 @@ static void colo_compare_finalize(Object *obj) CompareState *s = COLO_COMPARE(obj); CompareState *tmp = NULL; - qemu_chr_fe_deinit(&s->chr_pri_in, false); - qemu_chr_fe_deinit(&s->chr_sec_in, false); - qemu_chr_fe_deinit(&s->chr_out, false); - if (s->notify_dev) { - qemu_chr_fe_deinit(&s->chr_notify_dev, false); - } - - if (s->iothread) { - colo_compare_timer_del(s); - } - - qemu_bh_delete(s->event_bh); - qemu_mutex_lock(&colo_compare_mutex); QTAILQ_FOREACH(tmp, &net_compares, next) { if (tmp == s) { @@ -1409,6 +1397,19 @@ static void colo_compare_finalize(Object *obj) } qemu_mutex_unlock(&colo_compare_mutex); + qemu_chr_fe_deinit(&s->chr_pri_in, false); + qemu_chr_fe_deinit(&s->chr_sec_in, false); + qemu_chr_fe_deinit(&s->chr_out, false); + if (s->notify_dev) { + qemu_chr_fe_deinit(&s->chr_notify_dev, false); + } + + if (s->iothread) { + colo_compare_timer_del(s); + } + + qemu_bh_delete(s->event_bh); + AioContext *ctx = iothread_get_aio_context(s->iothread); aio_context_acquire(ctx); AIO_WAIT_WHILE(ctx, !s->out_sendco.done);