From fed17f3094b960d3a54b10f17abbe4b57e976eec Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 7 Jan 2008 21:00:40 -0800 Subject: [PATCH] [NET]: Stop polling when napi_disable() is pending. This finally adds the code in net_rx_action() to break out of the ->poll()'ing loop when a napi_disable() is found to be pending. Now, even if a device is being flooded with packets it can be cleanly brought down. Signed-off-by: David S. Miller --- net/core/dev.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index be9d3015beaa..0879f52115eb 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2207,8 +2207,12 @@ static void net_rx_action(struct softirq_action *h) * still "owns" the NAPI instance and therefore can * move the instance around on the list at-will. */ - if (unlikely(work == weight)) - list_move_tail(&n->poll_list, list); + if (unlikely(work == weight)) { + if (unlikely(napi_disable_pending(n))) + __napi_complete(n); + else + list_move_tail(&n->poll_list, list); + } netpoll_poll_unlock(have); } -- 2.20.1