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Date: Thu, 28 Mar 2024 18:53:39 -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 24/36] fuse-bpf: Add fuse-bpf constants

This adds constants that fuse_op programs will rely on for communicating
what action fuse should take next.

Signed-off-by: Daniel Rosenberg <drosen@...gle.com>
---
 include/uapi/linux/bpf.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 85ec7fc799d7..46c1a3e3166d 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -7461,4 +7461,16 @@ struct bpf_iter_num {
 	__u64 __opaque[1];
 } __attribute__((aligned(8)));
 
+/* Return Codes for Fuse BPF struct_op programs */
+#define BPF_FUSE_CONTINUE		0
+#define BPF_FUSE_USER			1
+#define BPF_FUSE_USER_PREFILTER		2
+#define BPF_FUSE_POSTFILTER		3
+#define BPF_FUSE_USER_POSTFILTER	4
+
+/* Op Code Filter values for BPF Programs */
+#define FUSE_OPCODE_FILTER	0x0ffff
+#define FUSE_PREFILTER		0x10000
+#define FUSE_POSTFILTER		0x20000
+
 #endif /* _UAPI__LINUX_BPF_H__ */
-- 
2.44.0.478.gd926399ef9-goog


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