linux-kernel - Re: [PATCH bpf-next v2] bpf: hardcode BPF_PROG_PACK_SIZE to 2MB * num_possible

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Date: Mon, 11 Mar 2024 23:40:29 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Puranjay Mohan <puranjay12@...il.com>
Cc: ast@...nel.org, daniel@...earbox.net, john.fastabend@...il.com,
 andrii@...nel.org, martin.lau@...ux.dev, eddyz87@...il.com, song@...nel.org,
 yonghong.song@...ux.dev, kpsingh@...nel.org, sdf@...gle.com,
 haoluo@...gle.com, jolsa@...nel.org, bpf@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH bpf-next v2] bpf: hardcode BPF_PROG_PACK_SIZE to 2MB *
 num_possible_nodes()

Hello:

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

On Mon, 11 Mar 2024 12:27:22 +0000 you wrote:
> On some architectures like ARM64, PMD_SIZE can be really large in some
> configurations. Like with CONFIG_ARM64_64K_PAGES=y the PMD_SIZE is
> 512MB.
> 
> Use 2MB * num_possible_nodes() as the size for allocations done through
> the prog pack allocator. On most architectures, PMD_SIZE will be equal
> to 2MB in case of 4KB pages and will be greater than 2MB for bigger page
> sizes.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v2] bpf: hardcode BPF_PROG_PACK_SIZE to 2MB * num_possible_nodes()
    https://git.kernel.org/bpf/bpf-next/c/d6170e4aaf86

You are awesome, thank you!
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