[PATCH] docs: lockdep-design: improve readability of the block matrix

[Xiongwei Song]

From: Xiongwei Song <sxwjean@xxxxxxxxx>

The block condition matrix is using 'E' as the writer notation, however,
the writer reminder below the matrix is using 'W', to make them consistent
and make the matrix more readable, we'd better to use 'W' to represent
writer.

Suggested-by: Waiman Long <llong@xxxxxxxxxx>
Suggested-by: Boqun Feng <boqun.feng@xxxxxxxxx>
Signed-off-by: Xiongwei Song <sxwjean@xxxxxxxxx>
---
 Documentation/locking/lockdep-design.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/locking/lockdep-design.rst b/Documentation/locking/lockdep-design.rst
index 9f3cfca..82f36ca 100644
--- a/Documentation/locking/lockdep-design.rst
+++ b/Documentation/locking/lockdep-design.rst
@@ -453,9 +453,9 @@ There are simply four block conditions:
 Block condition matrix, Y means the row blocks the column, and N means otherwise.
 
 	+---+---+---+---+
-	|   | E | r | R |
+	|   | W | r | R |
 	+---+---+---+---+
-	| E | Y | Y | Y |
+	| W | Y | Y | Y |
 	+---+---+---+---+
 	| r | Y | Y | N |
 	+---+---+---+---+
-- 
2.7.4