[PATCH] io-wq: expose IO_WQ_ACCT_* enumeration items to UAPI

From: Eugene Syromiatnikov <esyr@redhat.com>
To: Jens Axboe <axboe@kernel.dk>, Pavel Begunkov <asml.silence@gmail.com>
Cc: io-uring@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Dmitry V. Levin" <ldv@strace.io>,
	linux-api@vger.kernel.org
Subject: [PATCH] io-wq: expose IO_WQ_ACCT_* enumeration items to UAPI
Date: Sun, 12 Sep 2021 14:24:11 +0200	[thread overview]
Message-ID: <20210912122411.GA27679@asgard.redhat.com> (raw)

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 <esyr@redhat.com>
---
 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

