[PATCH] Documentation: ext4: correct the document about superblock

[JunChao Sun <sunjunchao2870@gmail.com>]

Correct some questions like this:
s_lastcheck_hi field should be upper 8 bits of the
s_lastcheck field, rather than itself.

Signed-off-by: JunChao Sun <sunjunchao2870@gmail.com>
---
 Documentation/filesystems/ext4/super.rst | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/filesystems/ext4/super.rst b/Documentation/filesystems/ext4/super.rst
index 268888522e35..0152888cac29 100644
--- a/Documentation/filesystems/ext4/super.rst
+++ b/Documentation/filesystems/ext4/super.rst
@@ -456,15 +456,15 @@ The ext4 superblock is laid out as follows in
    * - 0x277
      - __u8
      - s_lastcheck_hi
-     - Upper 8 bits of the s_lastcheck_hi field.
+     - Upper 8 bits of the s_lastcheck field.
    * - 0x278
      - __u8
      - s_first_error_time_hi
-     - Upper 8 bits of the s_first_error_time_hi field.
+     - Upper 8 bits of the s_first_error_time field.
    * - 0x279
      - __u8
      - s_last_error_time_hi
-     - Upper 8 bits of the s_last_error_time_hi field.
+     - Upper 8 bits of the s_last_error_time field.
    * - 0x27A
      - __u8
      - s_pad[2]
-- 
2.17.1