We need to release all the packets from VM in COLO or Micro-checkpoint, here we add a new helper function to realse the packets that buffered by default buffer-filter
Signed-off-by: zhanghailiang <zhang.zhanghaili...@huawei.com> Cc: Jason Wang <jasow...@redhat.com> Cc: Yang Hongyang <hongyang.y...@easystack.cn> --- v11: - New patch --- include/net/filter.h | 1 + net/filter-buffer.c | 19 +++++++++++++++++++ 2 files changed, 20 insertions(+) diff --git a/include/net/filter.h b/include/net/filter.h index b57b29a..e1e8d9b 100644 --- a/include/net/filter.h +++ b/include/net/filter.h @@ -77,5 +77,6 @@ ssize_t qemu_netfilter_pass_to_next(NetClientState *sender, void netdev_add_default_filter_buffer(const char *netdev_id, NetFilterDirection direction, Error **errp); +void qemu_release_default_filters_packets(void); void qemu_set_default_filter_buffers(bool enable_buffer); #endif /* QEMU_NET_FILTER_H */ diff --git a/net/filter-buffer.c b/net/filter-buffer.c index 7115a2b..06f2190 100644 --- a/net/filter-buffer.c +++ b/net/filter-buffer.c @@ -167,6 +167,25 @@ out: error_propagate(errp, local_err); } +static void default_filter_release_packets(NetFilterState *nf, + void *opaque, + Error **errp) +{ + if (!strcmp(object_get_typename(OBJECT(nf)), TYPE_FILTER_BUFFER)) { + FilterBufferState *s = FILTER_BUFFER(nf); + + if (s->is_default) { + filter_buffer_flush(nf); + } + } +} + +/* public APIs */ +void qemu_release_default_filters_packets(void) +{ + qemu_foreach_netfilter(default_filter_release_packets, NULL, NULL); +} + static void default_filter_set_buffer_flag(NetFilterState *nf, void *opaque, Error **errp) -- 1.8.3.1