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

[Daniel Rosenberg]

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@xxxxxxxxxx>
---
 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