ocfs2: fix i_mutex locking in ocfs2_splice_to_file()

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

diff --git a/include/linux/splice.h b/include/linux/splice.h
index 33e447f..5f3faa9 100644 (file)
--- a/include/linux/splice.h
+++ b/include/linux/splice.h
@@ -36,6 +36,8 @@ struct splice_desc {
                void *data;             /* cookie */
        } u;
        loff_t pos;                     /* file position */
+       size_t num_spliced;             /* number of bytes already spliced */
+       bool need_wakeup;               /* need to wake up writer */
 };
 
 struct partial_page {
@@ -53,6 +55,7 @@ struct splice_pipe_desc {
        int nr_pages;                   /* number of pages in map */
        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);
 };
 
 typedef int (splice_actor)(struct pipe_inode_info *, struct pipe_buffer *,
@@ -65,6 +68,16 @@ extern ssize_t splice_from_pipe(struct pipe_inode_info *, struct file *,
                                splice_actor *);
 extern ssize_t __splice_from_pipe(struct pipe_inode_info *,
                                  struct splice_desc *, splice_actor *);
+extern int splice_from_pipe_feed(struct pipe_inode_info *, struct splice_desc *,
+                                splice_actor *);
+extern int splice_from_pipe_next(struct pipe_inode_info *,
+                                struct splice_desc *);
+extern void splice_from_pipe_begin(struct splice_desc *);
+extern void splice_from_pipe_end(struct pipe_inode_info *,
+                                struct splice_desc *);
+extern int pipe_to_file(struct pipe_inode_info *, struct pipe_buffer *,
+                       struct splice_desc *);
+
 extern ssize_t splice_to_pipe(struct pipe_inode_info *,
                              struct splice_pipe_desc *);
 extern ssize_t splice_direct_to_actor(struct file *, struct splice_desc *,