linux-kernel - Re: [PATCH bpf-next v13 0/7] bpf: Introduce BPF_F_CPU and BPF_F_ALL

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: 
 <176776201679.2234404.5069514097125787379.git-patchwork-notify@kernel.org>
Date: Wed, 07 Jan 2026 05:00:16 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Leon Hwang <leon.hwang@...ux.dev>
Cc: bpf@...r.kernel.org, ast@...nel.org, andrii@...nel.org,
 daniel@...earbox.net, jolsa@...nel.org, yonghong.song@...ux.dev,
 song@...nel.org, eddyz87@...il.com, martin.lau@...ux.dev,
 john.fastabend@...il.com, kpsingh@...nel.org, sdf@...ichev.me,
 haoluo@...gle.com, shuah@...nel.org, kerneljasonxing@...il.com,
 willemb@...gle.com, yatsenko@...a.com, chen.dylane@...ux.dev,
 memxor@...il.com, a.s.protopopov@...il.com, ameryhung@...il.com,
 tklauser@...tanz.ch, rongtao@...tc.cn, dxu@...uu.xyz, deso@...teo.net,
 linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
 kernel-patches-bot@...com
Subject: Re: [PATCH bpf-next v13 0/7] bpf: Introduce BPF_F_CPU and
 BPF_F_ALL_CPUS
 flags for percpu maps

Hello:

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

On Wed,  7 Jan 2026 10:20:15 +0800 you wrote:
> This patch set introduces the BPF_F_CPU and BPF_F_ALL_CPUS flags for
> percpu maps, as the requirement of BPF_F_ALL_CPUS flag for percpu_array
> maps was discussed in the thread of
> "[PATCH bpf-next v3 0/4] bpf: Introduce global percpu data"[1].
> 
> The goal of BPF_F_ALL_CPUS flag is to reduce data caching overhead in light
> skeletons by allowing a single value to be reused to update values across all
> CPUs. This avoids the M:N problem where M cached values are used to update a
> map on N CPUs kernel.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v13,1/7] bpf: Introduce BPF_F_CPU and BPF_F_ALL_CPUS flags
    https://git.kernel.org/bpf/bpf-next/c/2b421662c788
  - [bpf-next,v13,2/7] bpf: Add BPF_F_CPU and BPF_F_ALL_CPUS flags support for percpu_array maps
    https://git.kernel.org/bpf/bpf-next/c/8eb76cb03f0f
  - [bpf-next,v13,3/7] bpf: Add BPF_F_CPU and BPF_F_ALL_CPUS flags support for percpu_hash and lru_percpu_hash maps
    https://git.kernel.org/bpf/bpf-next/c/c6936161fd55
  - [bpf-next,v13,4/7] bpf: Copy map value using copy_map_value_long for percpu_cgroup_storage maps
    https://git.kernel.org/bpf/bpf-next/c/8526397c3caf
  - [bpf-next,v13,5/7] bpf: Add BPF_F_CPU and BPF_F_ALL_CPUS flags support for percpu_cgroup_storage maps
    https://git.kernel.org/bpf/bpf-next/c/47c79f05aa0d
  - [bpf-next,v13,6/7] libbpf: Add BPF_F_CPU and BPF_F_ALL_CPUS flags support for percpu maps
    https://git.kernel.org/bpf/bpf-next/c/2546863b4a72
  - [bpf-next,v13,7/7] selftests/bpf: Add cases to test BPF_F_CPU and BPF_F_ALL_CPUS flags
    https://git.kernel.org/bpf/bpf-next/c/07bf7aa58e5e

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html