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From: Stefano Garzarella <[email protected]>
To: Jens Axboe <[email protected]>
Cc: Alexander Viro <[email protected]>,
	Kernel Hardening <[email protected]>,
	Kees Cook <[email protected]>, Aleksa Sarai <[email protected]>,
	Stefan Hajnoczi <[email protected]>,
	Christian Brauner <[email protected]>,
	Sargun Dhillon <[email protected]>, Jann Horn <[email protected]>,
	[email protected], [email protected],
	Jeff Moyer <[email protected]>,
	[email protected]
Subject: [PATCH RFC v2 1/3] io_uring: use an enumeration for io_uring_register(2) opcodes
Date: Thu, 16 Jul 2020 14:48:31 +0200	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

The enumeration allows us to keep track of the last
io_uring_register(2) opcode available.

Behaviour and opcodes names don't change.

Signed-off-by: Stefano Garzarella <[email protected]>
---
 include/uapi/linux/io_uring.h | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index 7843742b8b74..efc50bd0af34 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -253,17 +253,22 @@ struct io_uring_params {
 /*
  * io_uring_register(2) opcodes and arguments
  */
-#define IORING_REGISTER_BUFFERS		0
-#define IORING_UNREGISTER_BUFFERS	1
-#define IORING_REGISTER_FILES		2
-#define IORING_UNREGISTER_FILES		3
-#define IORING_REGISTER_EVENTFD		4
-#define IORING_UNREGISTER_EVENTFD	5
-#define IORING_REGISTER_FILES_UPDATE	6
-#define IORING_REGISTER_EVENTFD_ASYNC	7
-#define IORING_REGISTER_PROBE		8
-#define IORING_REGISTER_PERSONALITY	9
-#define IORING_UNREGISTER_PERSONALITY	10
+enum {
+	IORING_REGISTER_BUFFERS,
+	IORING_UNREGISTER_BUFFERS,
+	IORING_REGISTER_FILES,
+	IORING_UNREGISTER_FILES,
+	IORING_REGISTER_EVENTFD,
+	IORING_UNREGISTER_EVENTFD,
+	IORING_REGISTER_FILES_UPDATE,
+	IORING_REGISTER_EVENTFD_ASYNC,
+	IORING_REGISTER_PROBE,
+	IORING_REGISTER_PERSONALITY,
+	IORING_UNREGISTER_PERSONALITY,
+
+	/* this goes last */
+	IORING_REGISTER_LAST
+};
 
 struct io_uring_files_update {
 	__u32 offset;
-- 
2.26.2


  reply	other threads:[~2020-07-16 12:49 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-16 12:48 [PATCH RFC v2 0/3] io_uring: add restrictions to support untrusted applications and guests Stefano Garzarella
2020-07-16 12:48 ` Stefano Garzarella [this message]
2020-07-16 20:16   ` [PATCH RFC v2 1/3] io_uring: use an enumeration for io_uring_register(2) opcodes Pavel Begunkov
2020-07-16 20:42     ` Jens Axboe
2020-07-16 20:47       ` Pavel Begunkov
2020-07-16 20:51         ` Jens Axboe
2020-07-16 21:20           ` Jens Axboe
2020-07-17  8:13             ` Stefano Garzarella
2020-07-16 12:48 ` [PATCH RFC v2 2/3] io_uring: add IOURING_REGISTER_RESTRICTIONS opcode Stefano Garzarella
2020-07-16 21:26   ` Jens Axboe
2020-07-17  8:55     ` Stefano Garzarella
2020-07-21 10:40     ` Stefano Garzarella
2020-07-21 17:11       ` Jens Axboe
2020-07-22  2:35         ` Daurnimator
2020-07-22 14:14           ` Stefano Garzarella
2020-07-22 14:29         ` Stefano Garzarella
2020-07-16 12:48 ` [PATCH RFC v2 3/3] io_uring: allow disabling rings during the creation Stefano Garzarella

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