[RFC PATCH v4 32/36] WIP: fuse-bpf: add error_out

Daniel Rosenberg
2024-03-29T01:55:12Z

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(+)

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 {
--
2.44.0.478.gd926399ef9-goog