From: Stefan Monnier <monnier@iro.umontreal.ca>
Date: Thu, 17 Dec 2020 16:53:56 +0000 (-0500)
Subject: Fix my two most common causes of all windows/frames redisplay
X-Git-Tag: emacs-28.0.90~4677
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=d5941d8396a6bbe67bb06c339af008a5f688c73e;p=emacs.git

Fix my two most common causes of all windows/frames redisplay

* src/buffer.c (Fkill_all_local_variables): Only redisplay the buffer.
* src/window.c (set_window_scroll_bars): Only redisplay the window.
---

diff --git a/src/buffer.c b/src/buffer.c
index 4215acbf1df..dfc34faf6e6 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -2814,7 +2814,7 @@ the normal hook `change-major-mode-hook'.  */)
 
   /* Force mode-line redisplay.  Useful here because all major mode
      commands call this function.  */
-  update_mode_lines = 12;
+  bset_update_mode_line (current_buffer);
 
   return Qnil;
 }
diff --git a/src/window.c b/src/window.c
index 4eab786958f..bcc989b5a79 100644
--- a/src/window.c
+++ b/src/window.c
@@ -7822,7 +7822,7 @@ set_window_scroll_bars (struct window *w, Lisp_Object width,
 	 if more than a single window needs to be considered, see
 	 redisplay_internal.  */
       if (changed)
-	windows_or_buffers_changed = 31;
+	wset_redisplay (w);
 
       return changed ? w : NULL;
     }