There may be different cost for reeading just one byte or more, so it's
benificial to keep ctx flag bits that we access together in a single
byte. That affected code generation of __io_cq_unlock_post_flush() and
removed one memory load.
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
include/linux/io_uring_types.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h
index cc0cf0705b8f..0efe4d784358 100644
--- a/include/linux/io_uring_types.h
+++ b/include/linux/io_uring_types.h
@@ -196,17 +196,17 @@ struct io_ring_ctx {
/* const or read-mostly hot data */
struct {
unsigned int flags;
- unsigned int compat: 1;
unsigned int drain_next: 1;
unsigned int restricted: 1;
unsigned int off_timeout_used: 1;
unsigned int drain_active: 1;
- unsigned int drain_disabled: 1;
unsigned int has_evfd: 1;
- unsigned int syscall_iopoll: 1;
/* all CQEs should be posted only by the submitter task */
unsigned int task_complete: 1;
+ unsigned int syscall_iopoll: 1;
unsigned int poll_activated: 1;
+ unsigned int drain_disabled: 1;
+ unsigned int compat: 1;
enum task_work_notify_mode notify_method;
struct io_rings *rings;
--
2.38.1
