1 files changed, 16 insertions, 0 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index e216bc9b7abf..ddf6f572af81 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -5275,3 +5275,19 @@ const struct address_space_operations cifs_addr_ops_smallbuf = {
 	.launder_folio = cifs_launder_folio,
 	.migrate_folio = filemap_migrate_folio,
 };
+
+/*
+ * Splice data from a file into a pipe.
+ */
+ssize_t cifs_splice_read(struct file *in, loff_t *ppos,
+			 struct pipe_inode_info *pipe, size_t len,
+			 unsigned int flags)
+{
+	if (unlikely(*ppos >= file_inode(in)->i_sb->s_maxbytes))
+		return 0;
+	if (unlikely(!len))
+		return 0;
+	if (in->f_flags & O_DIRECT)
+		return direct_splice_read(in, ppos, pipe, len, flags);
+	return filemap_splice_read(in, ppos, pipe, len, flags);
+}