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-rw-r--r--include/uapi/asm-generic/unistd.h4
-rw-r--r--include/uapi/linux/io_uring.h13
2 files changed, 15 insertions, 2 deletions
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 87871e7b7ea7..d346229a1eb0 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -744,9 +744,11 @@ __SYSCALL(__NR_kexec_file_load, sys_kexec_file_load)
__SYSCALL(__NR_io_uring_setup, sys_io_uring_setup)
#define __NR_io_uring_enter 426
__SYSCALL(__NR_io_uring_enter, sys_io_uring_enter)
+#define __NR_io_uring_register 427
+__SYSCALL(__NR_io_uring_register, sys_io_uring_register)
#undef __NR_syscalls
-#define __NR_syscalls 427
+#define __NR_syscalls 428
/*
* 32 bit systems traditionally used different
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index 5c457ea396e6..cf28f7a11f12 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -27,7 +27,10 @@ struct io_uring_sqe {
__u32 fsync_flags;
};
__u64 user_data; /* data to be passed back at completion time */
- __u64 __pad2[3];
+ union {
+ __u16 buf_index; /* index into fixed buffers, if used */
+ __u64 __pad2[3];
+ };
};
/*
@@ -39,6 +42,8 @@ struct io_uring_sqe {
#define IORING_OP_READV 1
#define IORING_OP_WRITEV 2
#define IORING_OP_FSYNC 3
+#define IORING_OP_READ_FIXED 4
+#define IORING_OP_WRITE_FIXED 5
/*
* sqe->fsync_flags
@@ -103,4 +108,10 @@ struct io_uring_params {
struct io_cqring_offsets cq_off;
};
+/*
+ * io_uring_register(2) opcodes and arguments
+ */
+#define IORING_REGISTER_BUFFERS 0
+#define IORING_UNREGISTER_BUFFERS 1
+
#endif