commit dd08a9e22393c8ff3b69904ee283f74f7e5c903d
author Jens Axboe <axboe@kernel.dk> Tue Jan 28 12:53:48 2020 -0700
committer Jens Axboe <axboe@kernel.dk> Tue Jan 28 12:53:48 2020 -0700
tree f216a7973fea644df81937e5bfed8ccdabe4935f
parent 76d3eda2be46b0a6ee41e8cbe0e259a820773f07

Add io_uring_{register,unregister}_personality() helpers

Signed-off-by: Jens Axboe <axboe@kernel.dk>

src/include/liburing.h

diff --git a/src/include/liburing.h b/src/include/liburing.h
index b0909b2..83d11dd 100644
--- a/src/include/liburing.h
+++ b/src/include/liburing.h
@@ -104,6 +104,8 @@
 extern int io_uring_unregister_eventfd(struct io_uring *ring);
 extern int io_uring_register_probe(struct io_uring *ring,
 					struct io_uring_probe *p, unsigned nr);
+extern int io_uring_register_personality(struct io_uring *ring);
+extern int io_uring_unregister_personality(struct io_uring *ring, int id);
 
 /*
  * Helper for the peek/wait single cqe functions. Exported because of that,

src/include/liburing/io_uring.h

diff --git a/src/include/liburing/io_uring.h b/src/include/liburing/io_uring.h
index bca5568..79c75a4 100644
--- a/src/include/liburing/io_uring.h
+++ b/src/include/liburing/io_uring.h
@@ -210,6 +210,8 @@
 #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
 
 struct io_uring_files_update {
 	__u32 offset;

src/liburing.map

diff --git a/src/liburing.map b/src/liburing.map
index 0c17c1f..b45f373 100644
--- a/src/liburing.map
+++ b/src/liburing.map
@@ -70,4 +70,6 @@
 	global:
 		io_uring_ring_dontfork;
 		io_uring_register_probe;
+		io_uring_register_personality;
+		io_uring_unregister_personality;
 } LIBURING_0.3;

src/register.c

diff --git a/src/register.c b/src/register.c
index 73daaf8..c179b8a 100644
--- a/src/register.c
+++ b/src/register.c
@@ -110,3 +110,27 @@
 
 	return 0;
 }
+
+int io_uring_register_personality(struct io_uring *ring)
+{
+	int ret;
+
+	ret = __sys_io_uring_register(ring->ring_fd, IORING_REGISTER_PERSONALITY,
+					NULL, 0);
+	if (ret < 0)
+		return -errno;
+
+	return ret;
+}
+
+int io_uring_unregister_personality(struct io_uring *ring, int id)
+{
+	int ret;
+
+	ret = __sys_io_uring_register(ring->ring_fd, IORING_UNREGISTER_PERSONALITY,
+					NULL, id);
+	if (ret < 0)
+		return -errno;
+
+	return ret;
+}