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From: Jean-Sebastien Pedron <dumbbell@FreeBSD.org>
Date: Thu, 21 Aug 2014 14:12:12 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r270272 - head/sys/dev/vt
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Author: dumbbell
Date: Thu Aug 21 14:12:11 2014
New Revision: 270272
URL: http://svnweb.freebsd.org/changeset/base/270272

Log:
  vt(4): If the cursor is globally disabled, don't mark its position as dirty
  
  This avoids unnecessary redraw. In particular, during boot, where the
  cursor is disabled and its fake position is [0;0], this triggered a
  refresh of the whole screen each time vt_flush() is called.
  
  MFC after:	1 week

Modified:
  head/sys/dev/vt/vt_core.c

Modified: head/sys/dev/vt/vt_core.c
==============================================================================
--- head/sys/dev/vt/vt_core.c	Thu Aug 21 13:28:48 2014	(r270271)
+++ head/sys/dev/vt/vt_core.c	Thu Aug 21 14:12:11 2014	(r270272)
@@ -833,7 +833,8 @@ vt_flush(struct vt_device *vd)
 		return;
 
 #ifndef SC_NO_CUTPASTE
-	if ((vw->vw_flags & VWF_MOUSE_HIDE) == 0) {
+	if ((vd->vd_flags & VDF_MOUSECURSOR) && /* Mouse support enabled. */
+	    !(vw->vw_flags & VWF_MOUSE_HIDE)) { /* Cursor displayed.      */
 		/* Mark last mouse position as dirty to erase. */
 		vtbuf_mouse_cursor_position(&vw->vw_buf, vd->vd_mdirtyx,
 		    vd->vd_mdirtyy);