From: Yonghong Song <yonghong.song@linux.dev>
To: David Vernet <void@manifault.com>, bpf@vger.kernel.org
Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
martin.lau@linux.dev, song@kernel.org, john.fastabend@gmail.com,
kpsingh@kernel.org, sdf@google.com, haoluo@google.com,
jolsa@kernel.org, linux-kernel@vger.kernel.org,
kernel-team@meta.com
Subject: Re: [PATCH bpf-next 1/2] bpf: Add bpf_cpumask_weight() kfunc
Date: Thu, 7 Dec 2023 20:37:40 -0800 [thread overview]
Message-ID: <39853044-6139-41ab-87b4-0d9972722226@linux.dev> (raw)
In-Reply-To: <20231207210843.168466-2-void@manifault.com>
On 12/7/23 1:08 PM, David Vernet wrote:
> It can be useful to query how many bits are set in a cpumask. For
> example, if you want to perform special logic for the last remaining
> core that's set in a mask. Let's therefore add a new
> bpf_cpumask_weight() kfunc which checks how many bits are set in a mask.
>
> Signed-off-by: David Vernet <void@manifault.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
next prev parent reply other threads:[~2023-12-08 4:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-07 21:08 [PATCH bpf-next 0/2] Add new bpf_cpumask_weight() kfunc David Vernet
2023-12-07 21:08 ` [PATCH bpf-next 1/2] bpf: Add " David Vernet
2023-12-08 4:37 ` Yonghong Song [this message]
2023-12-07 21:08 ` [PATCH bpf-next 2/2] selftests/bpf: Add test for " David Vernet
2023-12-08 4:39 ` Yonghong Song
2023-12-10 5:40 ` [PATCH bpf-next 0/2] Add new " patchwork-bot+netdevbpf
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