ext4: trace punch_hole correctly in ext4_ext_map_blocks

When ext4_ext_map_blocks() is called by punch_hole, trace should
trace blocks punched out.

Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index b66cef016c4b90598c27ad40e1caf10805f58e13..37a5df7a5645cba29443a281fb936eaf8fac2a84 100644 (file)
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4170,12 +4170,12 @@ out2:
                ext4_ext_drop_refs(path);
                kfree(path);
        }
-       trace_ext4_ext_map_blocks_exit(inode, map->m_lblk,
-               newblock, map->m_len, err ? err : allocated);
-
        result = (flags & EXT4_GET_BLOCKS_PUNCH_OUT_EXT) ?
                        punched_out : allocated;
 
+       trace_ext4_ext_map_blocks_exit(inode, map->m_lblk,
+               newblock, map->m_len, err ? err : result);
+
        return err ? err : result;
 }