# \[PATCH\] io-wq: expose IO\_WQ\_ACCT\_\* enumeration items to UAPI

- From: Eugene Syromiatnikov \<hidden\>
- Date: 2021-09-12 12:24:25 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2021/09/1504487
- Thread: https://ratatoskr.run/io-uring/2021/09/1504487/t.md

```text
These are used to index aargument of IORING_REGISTER_IOWQ_MAX_WORKERS
io_uring_register command, so they are to be exposed in UAPI.

Signed-off-by: Eugene Syromiatnikov <redacted>
---
 fs/io-wq.c                    | 7 +------
 include/uapi/linux/io_uring.h | 8 ++++++++
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/fs/io-wq.c b/fs/io-wq.c
index 6c55362..5e7cd7c 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -14,6 +14,7 @@
 #include <linux/rculist_nulls.h>
 #include <linux/cpu.h>
 #include <linux/tracehook.h>
+#include <uapi/linux/io_uring.h>
 
 #include "io-wq.h"
 
@@ -77,12 +78,6 @@ struct io_wqe_acct {
 	unsigned long flags;
 };
 
-enum {
-	IO_WQ_ACCT_BOUND,
-	IO_WQ_ACCT_UNBOUND,
-	IO_WQ_ACCT_NR,
-};
-
 /*
  * Per-node worker thread pool
  */
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index 59ef351..d67a3cc 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -324,6 +324,14 @@ enum {
 	IORING_REGISTER_LAST
 };
 
+/* io-wq worker limit categories */
+enum {
+	IO_WQ_ACCT_BOUND,
+	IO_WQ_ACCT_UNBOUND,
+
+	IO_WQ_ACCT_NR /* Non-UAPI */
+};
+
 /* deprecated, see struct io_uring_rsrc_update */
 struct io_uring_files_update {
 	__u32 offset;
-- 
2.1.4

```