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[RFC,v3,34/37] WIP: fuse-bpf: add error_out

Message ID 20230418014037.2412394-35-drosen@google.com (mailing list archive)
State Mainlined, archived
Headers show
Series FUSE BPF: A Stacked Filesystem Extension for FUSE | expand

Commit Message

Daniel Rosenberg April 18, 2023, 1:40 a.m. UTC 
error_out field will allow differentiating between altering error code
from bpf programs, and the bpf program returning an error. TODO

Signed-off-by: Daniel Rosenberg <drosen@google.com>
---
 include/linux/bpf_fuse.h | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/include/linux/bpf_fuse.h b/include/linux/bpf_fuse.h
index 159b850e1b46..15646ba59c41 100644
--- a/include/linux/bpf_fuse.h
+++ b/include/linux/bpf_fuse.h
@@ -57,6 +57,7 @@  struct bpf_fuse_meta_info {
 	uint64_t nodeid;
 	uint32_t opcode;
 	uint32_t error_in;
+	uint32_t error_out; // TODO: struct_op programs may set this to alter reported error code
 };
 
 struct bpf_fuse_args {