Messages in this thread | | | Subject | Re: [PATCH net v3] net: stmmac: protect updates of 64-bit statistics counters | From | patchwork-bot+netdevbpf@kernel ... | Date | Wed, 07 Feb 2024 09:10:25 +0000 |
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Hello:
This patch was applied to netdev/net.git (main) by David S. Miller <davem@davemloft.net>:
On Sat, 3 Feb 2024 20:09:27 +0100 you wrote: > As explained by a comment in <linux/u64_stats_sync.h>, write side of struct > u64_stats_sync must ensure mutual exclusion, or one seqcount update could > be lost on 32-bit platforms, thus blocking readers forever. Such lockups > have been observed in real world after stmmac_xmit() on one CPU raced with > stmmac_napi_poll_tx() on another CPU. > > To fix the issue without introducing a new lock, split the statics into > three parts: > > [...]
Here is the summary with links: - [net,v3] net: stmmac: protect updates of 64-bit statistics counters https://git.kernel.org/netdev/net/c/38cc3c6dcc09
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