Add a comment on why we keep ->cancel_seq in struct io_wq_work instead
of struct io_kiocb despite it needed only by io_uring but not io-wq.
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
io_uring/io-wq.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/io_uring/io-wq.h b/io_uring/io-wq.h
index ba6eee76d028..3f54ee2a8eeb 100644
--- a/io_uring/io-wq.h
+++ b/io_uring/io-wq.h
@@ -155,6 +155,7 @@ struct io_wq_work_node *wq_stack_extract(struct io_wq_work_node *stack)
struct io_wq_work {
struct io_wq_work_node list;
unsigned flags;
+ /* place it here instead of io_kiocb as it fills padding and saves 4B */
int cancel_seq;
};
--
2.36.1
