Btrfs: Fix nodatacow extent lookup

Yan Zheng noticed the offset into the extent was incorrectly being added to the
extent start before trying to find it in the extent allocation tree.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 55b2e14260243cfa9312cffc1bd716da6f43eb79..1c61c85dc3d824f109a3154d2acaa3321780f21a 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -177,7 +177,6 @@ again:
                if (bytenr == 0)
                        goto not_found;
 
-               bytenr += btrfs_file_extent_offset(leaf, item);
                if (btrfs_count_snapshots_in_path(root, path, bytenr) != 1) {
                        goto not_found;
                }