splice: add void cookie to the actor data

We need that for passing driver private info.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index 6e7bfc125425bd7b74779668d86307c2a092d784..f277a9cdb50d3a4a34c85ce93b0e4083487e29c1 100644 (file)
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -94,6 +94,7 @@ struct splice_desc {
        union {
                void __user *userptr;   /* memory to write to */
                struct file *file;      /* file to read/write */
+               void *data;             /* cookie */
        } u;
        loff_t pos;                     /* file position */
 };