linux-kernel - [RFC PATCH v4 25/36] bpf: Increase struct

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Date: Thu, 28 Mar 2024 18:53:40 -0700
From: Daniel Rosenberg <drosen@...gle.com>
To: Miklos Szeredi <miklos@...redi.hu>, bpf@...r.kernel.org, 
	Alexei Starovoitov <ast@...nel.org>
Cc: Amir Goldstein <amir73il@...il.com>, linux-kernel@...r.kernel.org, 
	linux-fsdevel@...r.kernel.org, linux-unionfs@...r.kernel.org, 
	Daniel Borkmann <daniel@...earbox.net>, John Fastabend <john.fastabend@...il.com>, 
	Andrii Nakryiko <andrii@...nel.org>, Martin KaFai Lau <martin.lau@...ux.dev>, Song Liu <song@...nel.org>, 
	Eduard Zingerman <eddyz87@...il.com>, Yonghong Song <yonghong.song@...ux.dev>, 
	KP Singh <kpsingh@...nel.org>, Stanislav Fomichev <sdf@...gle.com>, Hao Luo <haoluo@...gle.com>, 
	Jiri Olsa <jolsa@...nel.org>, Shuah Khan <shuah@...nel.org>, Jonathan Corbet <corbet@....net>, 
	Joanne Koong <joannelkoong@...il.com>, Mykola Lysenko <mykolal@...com>, 
	Christian Brauner <brauner@...nel.org>, kernel-team@...roid.com, 
	Daniel Rosenberg <drosen@...gle.com>
Subject: [RFC PATCH v4 25/36] bpf: Increase struct_op max members

Fuse bpf goes a bit past the '64' limit here.
This doubles the limit, although fuse-bpf currently uses 66.

Signed-off-by: Daniel Rosenberg <drosen@...gle.com>
---
 include/linux/bpf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 785660810e6a..7a5a806e97ad 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -1636,7 +1636,7 @@ struct bpf_token {
 struct bpf_struct_ops_value;
 struct btf_member;
 
-#define BPF_STRUCT_OPS_MAX_NR_MEMBERS 64
+#define BPF_STRUCT_OPS_MAX_NR_MEMBERS 128
 /**
  * struct bpf_struct_ops - A structure of callbacks allowing a subsystem to
  *			   define a BPF_MAP_TYPE_STRUCT_OPS map type composed
-- 
2.44.0.478.gd926399ef9-goog