From: patchwork-bot+netdevbpf@kernel.org
To: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Cc: bpf@vger.kernel.org, josef@toxicpanda.com, ast@kernel.org,
andrii@kernel.org, daniel@iogearbox.net, martin.lau@kernel.org,
eddyz87@gmail.com, kkd@meta.com, kernel-team@meta.com
Subject: Re: [PATCH bpf v2] rqspinlock: Choose trylock fallback for NMI waiters
Date: Tue, 09 Sep 2025 22:20:19 +0000 [thread overview]
Message-ID: <175745641999.833608.430490724192273857.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20250909184959.3509085-1-memxor@gmail.com>
Hello:
This patch was applied to bpf/bpf.git (master)
by Alexei Starovoitov <ast@kernel.org>:
On Tue, 9 Sep 2025 18:49:59 +0000 you wrote:
> Currently, out of all 3 types of waiters in the rqspinlock slow path
> (i.e., pending bit waiter, wait queue head waiter, and wait queue
> non-head waiter), only the pending bit waiter and wait queue head
> waiters apply deadlock checks and a timeout on their waiting loop. The
> assumption here was that the wait queue head's forward progress would be
> sufficient to identify cases where the lock owner or pending bit waiter
> is stuck, and non-head waiters relying on the head waiter would prove to
> be sufficient for their own forward progress.
>
> [...]
Here is the summary with links:
- [bpf,v2] rqspinlock: Choose trylock fallback for NMI waiters
https://git.kernel.org/bpf/bpf/c/0d80e7f951be
You are awesome, thank you!
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prev parent reply other threads:[~2025-09-09 22:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-09 18:49 [PATCH bpf v2] rqspinlock: Choose trylock fallback for NMI waiters Kumar Kartikeya Dwivedi
2025-09-09 22:20 ` patchwork-bot+netdevbpf [this message]
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