1 files changed, 1 insertions, 0 deletions

diff --git a/fs/btrfs/send.h b/fs/btrfs/send.h
index 9934e948e57f..1bf4f32fd4ef 100644
--- a/fs/btrfs/send.h
+++ b/fs/btrfs/send.h
@@ -130,4 +130,5 @@ enum {
 
 #ifdef __KERNEL__
 long btrfs_ioctl_send(struct file *mnt_file, void __user *arg);
+int write_buf(struct file *filp, const void *buf, u32 len, loff_t *off);
 #endif