aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorHerbert Xu <herbert@gondor.apana.org.au>2009-03-26 00:59:10 -0700
committerDavid S. Miller <davem@davemloft.net>2009-03-26 22:24:28 -0700
commit8f1ead2d1a626ed0c85b3d2c2046a49081d5933f (patch)
tree4bb6e9672a6ec13bb2388f535642d374d4353eb6
parentbe0ea69674ed95e1e98cb3687a241badc756d228 (diff)
GRO: Disable GRO on legacy netif_rx path
When I fixed the GRO crash in the legacy receive path I used napi_complete to replace __napi_complete. Unfortunately they're not the same when NETPOLL is enabled, which may result in us not calling __napi_complete at all. What's more, we really do need to keep the __napi_complete call within the IRQ-off section since in theory an IRQ can occur in between and fill up the backlog to the maximum, causing us to lock up. Since we can't seem to find a fix that works properly right now, this patch reverts all the GRO support from the netif_rx path. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/core/dev.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 052dd478d3e..63ec4bf89b2 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2627,18 +2627,15 @@ static int process_backlog(struct napi_struct *napi, int quota)
local_irq_disable();
skb = __skb_dequeue(&queue->input_pkt_queue);
if (!skb) {
+ __napi_complete(napi);
local_irq_enable();
- napi_complete(napi);
- goto out;
+ break;
}
local_irq_enable();
- napi_gro_receive(napi, skb);
+ netif_receive_skb(skb);
} while (++work < quota && jiffies == start_time);
- napi_gro_flush(napi);
-
-out:
return work;
}