io_queue_init: pass in flags, not io_uring_params

We don't need any of the information in there in the caller, and
this makes it harder to abuse as we don't require the caller to
have memset() the struct first.

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

2 files changed, 9 insertions, 6 deletions

diff --git a/src/io_uring.c b/src/io_uring.c
index bf79b9f..a75d135 100644
--- a/src/io_uring.c
+++ b/src/io_uring.c
@@ -188,17 +188,20 @@ err:
  * Returns -1 on error, or zero on success. On success, 'ring'
  * contains the necessary information to read/write to the rings.
  */
-int io_uring_queue_init(unsigned entries, struct io_uring_params *p,
-			struct io_uring *ring)
+int io_uring_queue_init(unsigned entries, struct io_uring *ring, unsigned flags)
 {
+	struct io_uring_params p;
 	int fd, ret;
 
-	fd = io_uring_setup(entries, p);
+	memset(&p, 0, sizeof(p));
+	p.flags = flags;
+
+	fd = io_uring_setup(entries, &p);
 	if (fd < 0)
 		return fd;
 
 	memset(ring, 0, sizeof(*ring));
-	ret = io_uring_mmap(fd, p, &ring->sq, &ring->cq);
+	ret = io_uring_mmap(fd, &p, &ring->sq, &ring->cq);
 	if (!ret)
 		ring->ring_fd = fd;
 	return ret;
diff --git a/src/liburing.h b/src/liburing.h
index 4123ba1..fb07583 100644
--- a/src/liburing.h
+++ b/src/liburing.h
@@ -51,8 +51,8 @@ extern int io_uring_register(int fd, unsigned int opcode, void *arg);
 /*
  * Library interface
  */
-extern int io_uring_queue_init(unsigned entries, struct io_uring_params *p,
-	struct io_uring *ring);
+extern int io_uring_queue_init(unsigned entries, struct io_uring *ring,
+	unsigned flags);
 extern void io_uring_queue_exit(struct io_uring *ring);
 extern int io_uring_get_completion(struct io_uring *ring,
 	struct io_uring_cqe **cqe_ptr);