[PATCH 02/16] BTRFS: Use VFS copy offload helper

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From: Andy Adamson <andros@xxxxxxxxxx>

Signed-off-by: Andy Adamson <andros@xxxxxxxxxx>
---
 fs/btrfs/ioctl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 62ae286..f8fa11f 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3856,6 +3856,9 @@ ssize_t btrfs_copy_file_range(struct file *file_in, loff_t pos_in,
 {
 	ssize_t ret;
 
+	ret = copy_offload_same_fs(file_in, file_out);
+	if (ret != 0)
+		return ret;
 	ret = btrfs_clone_files(file_out, file_in, pos_in, len, pos_out);
 	if (ret == 0)
 		ret = len;
-- 
1.8.3.1

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