Add support for IORING_OP_OPENAT2

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

3 files changed, 48 insertions, 0 deletions

diff --git a/configure b/configure
index 7393cb4..54cf5f6 100755
--- a/configure
+++ b/configure
@@ -209,6 +209,29 @@ if compile_prog "" "" "__kernel_timespec"; then
 fi
 print_config "__kernel_timespec" "$__kernel_timespec"
 
+##########################################
+# check for open_how
+open_how="no"
+cat > $TMPC << EOF
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+int main(int argc, char **argv)
+{
+  struct open_how how;
+  how.flags = 0;
+  how.mode = 0;
+  how.resolve = 0;
+  return 0;
+}
+EOF
+if compile_prog "" "" "open_how"; then
+  open_how="yes"
+fi
+print_config "open_how" "$open_how"
+
+
 #############################################################################
 
 if test "$__kernel_rwf_t" = "yes"; then
@@ -217,5 +240,8 @@ fi
 if test "$__kernel_timespec" = "yes"; then
   output_sym "CONFIG_HAVE_KERNEL_TIMESPEC"
 fi
+if test "$open_how" = "yes"; then
+  output_sym "CONFIG_HAVE_OPEN_HOW"
+fi
 
 echo "CC=$cc" >> $config_host_mak
diff --git a/src/include/liburing.h b/src/include/liburing.h
index 6f76c99..c47c7c6 100644
--- a/src/include/liburing.h
+++ b/src/include/liburing.h
@@ -21,6 +21,15 @@ struct __kernel_timespec {
 };
 #endif
 
+#ifndef CONFIG_HAVE_OPEN_HOW
+struct open_how {
+	uint64_t	flags;
+	uint16_t	mode;
+	uint16_t	__padding[3];
+	uint64_t	resolve;
+};
+#endif
+
 /*
  * Library interface to io_uring
  */
@@ -355,6 +364,13 @@ static inline void io_uring_prep_madvise(struct io_uring_sqe *sqe, void *addr,
 	sqe->fadvise_advice = advice;
 }
 
+static inline void io_uring_prep_openat2(struct io_uring_sqe *sqe, int dfd,
+					const char *path, struct open_how *how)
+{
+	io_uring_prep_rw(IORING_OP_OPENAT2, sqe, dfd, path, sizeof(*how),
+				(uint64_t) how);
+}
+
 static inline unsigned io_uring_sq_ready(struct io_uring *ring)
 {
 	return ring->sq.sqe_tail - ring->sq.sqe_head;
diff --git a/src/include/liburing/io_uring.h b/src/include/liburing/io_uring.h
index 7cb6fe0..fb53240 100644
--- a/src/include/liburing/io_uring.h
+++ b/src/include/liburing/io_uring.h
@@ -61,6 +61,7 @@ struct io_uring_sqe {
 #define IORING_SETUP_SQPOLL	(1U << 1)	/* SQ poll thread */
 #define IORING_SETUP_SQ_AFF	(1U << 2)	/* sq_thread_cpu is valid */
 #define IORING_SETUP_CQSIZE	(1U << 3)	/* app defines CQ size */
+#define IORING_SETUP_CLAMP	(1U << 4)	/* clamp SQ/CQ ring sizes */
 
 enum {
 	IORING_OP_NOP,
@@ -89,6 +90,10 @@ enum {
 	IORING_OP_WRITE,
 	IORING_OP_FADVISE,
 	IORING_OP_MADVISE,
+	IORING_OP_SEND,
+	IORING_OP_RECV,
+	IORING_OP_EPOLL_CTL,
+	IORING_OP_OPENAT2,
 
 	/* this goes last, obviously */
 	IORING_OP_LAST,
@@ -189,6 +194,7 @@ struct io_uring_params {
 #define IORING_REGISTER_EVENTFD		4
 #define IORING_UNREGISTER_EVENTFD	5
 #define IORING_REGISTER_FILES_UPDATE	6
+#define IORING_REGISTER_EVENTFD_ASYNC	7
 
 struct io_uring_files_update {
 	__u32 offset;