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From: Stefano Garzarella <sgarzare@redhat.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: Sargun Dhillon <sargun@sargun.me>,
	Kees Cook <keescook@chromium.org>,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	Kernel Hardening <kernel-hardening@lists.openwall.com>,
	Jann Horn <jannh@google.com>, Aleksa Sarai <asarai@suse.de>,
	Christian Brauner <christian.brauner@ubuntu.com>,
	Stefan Hajnoczi <stefanha@redhat.com>,
	io-uring@vger.kernel.org,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Jeff Moyer <jmoyer@redhat.com>
Subject: [PATCH RFC 1/3] io_uring: use an enumeration for io_uring_register(2) opcodes
Date: Fri, 10 Jul 2020 16:19:43 +0200	[thread overview]
Message-ID: <20200710141945.129329-2-sgarzare@redhat.com> (raw)
In-Reply-To: <20200710141945.129329-1-sgarzare@redhat.com>

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 <sgarzare@redhat.com>
---
 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 92c22699a5a7..2d18f1d0b5df 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -252,17 +252,22 @@ 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:[~2020-07-10 14:20 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-10 14:19 [PATCH RFC 0/3] io_uring: add restrictions to support untrusted applications and guests Stefano Garzarella
2020-07-10 14:19 ` Stefano Garzarella [this message]
2020-07-10 14:19 ` [PATCH RFC 2/3] io_uring: add IOURING_REGISTER_RESTRICTIONS opcode Stefano Garzarella
2020-07-10 17:52   ` Jens Axboe
2020-07-13  8:07     ` Stefano Garzarella
2020-07-10 14:19 ` [PATCH RFC 3/3] io_uring: allow disabling rings during the creation Stefano Garzarella
2020-07-10 15:33 ` [PATCH RFC 0/3] io_uring: add restrictions to support untrusted applications and guests Konrad Rzeszutek Wilk
2020-07-10 16:20   ` Stefano Garzarella
2020-07-13  9:24     ` Stefan Hajnoczi

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