io_uring: let to set a range for file slot allocation

[platform/kernel/linux-starfive.git] / include / uapi / linux / io_uring.h

diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index f378eab..cf95354 100644 (file)
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -449,6 +449,9 @@ enum {
        /* sync cancelation API */
        IORING_REGISTER_SYNC_CANCEL             = 24,
 
+       /* register a range of fixed file slots for automatic slot allocation */
+       IORING_REGISTER_FILE_ALLOC_RANGE        = 25,
+
        /* this goes last */
        IORING_REGISTER_LAST
 };
@@ -595,4 +598,14 @@ struct io_uring_sync_cancel_reg {
        __u64                           pad[4];
 };
 
+/*
+ * Argument for IORING_REGISTER_FILE_ALLOC_RANGE
+ * The range is specified as [off, off + len)
+ */
+struct io_uring_file_index_range {
+       __u32   off;
+       __u32   len;
+       __u64   resv;
+};
+
 #endif