1 files changed, 4 insertions, 4 deletions

diff --git a/include/linux/splice.h b/include/linux/splice.h
index 26e5b613deda..09a545a7dfa3 100644
--- a/include/linux/splice.h
+++ b/include/linux/splice.h
@@ -51,7 +51,8 @@ struct partial_page {
 struct splice_pipe_desc {
         struct page **pages;            /* page map */
         struct partial_page *partial;   /* pages[] may not be contig */
-        int nr_pages;                   /* number of pages in map */
+        int nr_pages;                   /* number of populated pages in map */
+        unsigned int nr_pages_max;      /* pages[] & partial[] arrays size */
         unsigned int flags;             /* splice flags */
         const struct pipe_buf_operations *ops;/* ops associated with output pipe */
         void (*spd_release)(struct splice_pipe_desc *, unsigned int);
@@ -85,9 +86,8 @@ extern ssize_t splice_direct_to_actor(struct file *, struct splice_desc *,
 /*
  * for dynamic pipe sizing
  */
-extern int splice_grow_spd(struct pipe_inode_info *, struct splice_pipe_desc *);
-extern void splice_shrink_spd(struct pipe_inode_info *,
-                                struct splice_pipe_desc *);
+extern int splice_grow_spd(const struct pipe_inode_info *, struct splice_pipe_desc *);
+extern void splice_shrink_spd(struct splice_pipe_desc *);
 extern void spd_release_page(struct splice_pipe_desc *, unsigned int);
 
 extern const struct pipe_buf_operations page_cache_pipe_buf_ops;