Re: [PATCH bpf-next] bpf, sockmap: fix deadlocks in the sockhash and sockmap

From: patchwork-bot+netdevbpf
Date: Wed Apr 12 2023 - 19:40:23 EST


Hello:

This patch was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@xxxxxxxxxx>:

On Thu, 6 Apr 2023 20:26:22 +0800 you wrote:
> When huang uses sched_switch tracepoint, the tracepoint
> does only one thing in the mounted ebpf program, which
> deletes the fixed elements in sockhash ([0])
>
> It seems that elements in sockhash are rarely actively
> deleted by users or ebpf program. Therefore, we do not
> pay much attention to their deletion. Compared with hash
> maps, sockhash only provides spin_lock_bh protection.
> This causes it to appear to have self-locking behavior
> in the interrupt context.
>
> [...]

Here is the summary with links:
- [bpf-next] bpf, sockmap: fix deadlocks in the sockhash and sockmap
https://git.kernel.org/bpf/bpf-next/c/ed17aa92dc56

You are awesome, thank you!
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