[RFC -next 01/10] splice: Add ubuf_info to prepare for ZC

[Joe Damato]

Update struct splice_desc to include ubuf_info to prepare splice for
zero copy notifications.

Signed-off-by: Joe Damato <jdam...@fastly.com>
---
 include/linux/splice.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/splice.h b/include/linux/splice.h
index 9dec4861d09f..7477df3916e2 100644
--- a/include/linux/splice.h
+++ b/include/linux/splice.h
@@ -10,6 +10,7 @@
 #define SPLICE_H
 
 #include <linux/pipe_fs_i.h>
+#include <linux/skbuff.h>
 
 /*
  * Flags passed in from splice/tee/vmsplice
@@ -43,6 +44,7 @@ struct splice_desc {
        loff_t *opos;                   /* sendfile: output position */
        size_t num_spliced;             /* number of bytes already spliced */
        bool need_wakeup;               /* need to wake up writer */
+       struct ubuf_info *ubuf_info;    /* zerocopy infrastructure */
 };
 
 struct partial_page {
-- 
2.43.0