Allow customized `vfile` with non-NULL `ops` utilizing `payload`
for additional information.
Signed-off-by: Gao Xiang <hsiang...@linux.alibaba.com>
---
include/erofs/io.h | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/include/erofs/io.h b/include/erofs/io.h
index 6167bdf..f53abed 100644
--- a/include/erofs/io.h
+++ b/include/erofs/io.h
@@ -37,10 +37,16 @@ struct erofs_vfops {
struct erofs_vfile *vin, int len, bool noseek);
};
+/* don't extend this; instead, use payload for any extra information */
struct erofs_vfile {
struct erofs_vfops *ops;
- u64 offset;
- int fd;
+ union {
+ struct {
+ u64 offset;
+ int fd;
+ };
+ u8 payload[16];
+ };
};
int erofs_io_fstat(struct erofs_vfile *vf, struct stat *buf);
--
2.39.3
