This reuses the hash list node for the storage we need to hold the two
64-bit values that must be passed back.
Co-developed-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Stefan Roesch <shr@xxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Reviewed-by: Kanchan Joshi <joshi.k@xxxxxxxxxxx>
---
fs/io_uring.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 4c32cf987ef3..bf2b02518332 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -964,7 +964,13 @@ struct io_kiocb {
atomic_t poll_refs;
struct io_task_work io_task_work;
/* for polled requests, i.e. IORING_OP_POLL_ADD and async armed poll */
- struct hlist_node hash_node;
+ union {
+ struct hlist_node hash_node;
+ struct {
+ u64 extra1;
+ u64 extra2;
+ };
+ };
/* internal polling, see IORING_FEAT_FAST_POLL */
struct async_poll *apoll;
/* opcode allocated if it needs to store data for async defer */
--
2.30.2
