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-rw-r--r--include/linux/io_uring.h3
-rw-r--r--include/uapi/linux/io_uring.h5
2 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/io_uring.h b/include/linux/io_uring.h
index 106cdc55ff3b..ae08d6f66e62 100644
--- a/include/linux/io_uring.h
+++ b/include/linux/io_uring.h
@@ -22,6 +22,9 @@ enum io_uring_cmd_flags {
IO_URING_F_IOPOLL = (1 << 10),
};
+/* only top 8 bits of sqe->uring_cmd_flags for kernel internal use */
+#define IORING_URING_CMD_POLLED (1U << 31)
+
struct io_uring_cmd {
struct file *file;
const struct io_uring_sqe *sqe;
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index 683ac2b74721..425f64eee44e 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -249,13 +249,12 @@ enum io_uring_op {
};
/*
- * sqe->uring_cmd_flags
+ * sqe->uring_cmd_flags top 8bits aren't available for userspace
* IORING_URING_CMD_FIXED use registered buffer; pass this flag
* along with setting sqe->buf_index.
- * IORING_URING_CMD_POLLED driver use only
*/
#define IORING_URING_CMD_FIXED (1U << 0)
-#define IORING_URING_CMD_POLLED (1U << 31)
+#define IORING_URING_CMD_MASK IORING_URING_CMD_FIXED
/*