Re: [PATCH] virtio-net: fix a race on 32bit arches
From: Eric Dumazet
Date: Wed Jun 06 2012 - 16:08:09 EST
On Wed, 2012-06-06 at 22:58 +0300, Michael S. Tsirkin wrote:
> Absolutely, I am talking about virtio here. I'm not kicking
> u64_stats_sync idea I am just saying that simple locking
> would work for virtio and might be better as it
> gives us a way to get counters atomically.
Which lock do you own in the RX path ?
You'll have to add a lock in fast path. This sounds really a bad choice
to me.
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