From: "Michael S. Tsirkin"
Date: Tue, 5 May 2020 20:01:31 -0400
> - u64_stats_update_end(&rq->stats.syncp);
> + u64_stats_update_end_irqrestore(&rq->stats.syncp);
Need to pass flags to this function.
On 2020/5/6 上午8:01, Michael S. Tsirkin wrote:
When we fill up a receive VQ, try_fill_recv currently tries to count
kicks using a 64 bit stats counter. Turns out, on a 32 bit kernel that
uses a seqcount. sequence counts are "lock" constructs where you need to
make sure that writers are serialize
When we fill up a receive VQ, try_fill_recv currently tries to count
kicks using a 64 bit stats counter. Turns out, on a 32 bit kernel that
uses a seqcount. sequence counts are "lock" constructs where you need to
make sure that writers are serialized.
In turn, this means that we mustn't run two tr
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