vt: provide notifications on selection changes

The vcs device's poll/fasync support relies on the vt notifier to signal
changes to the screen content.  Notifier invocations were missing for
changes that comes through the selection interface though.  Fix that.

Tested with BRLTTY 5.2.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Cc: Dave Mielke <dave@mielke.cc>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 5d36c23..6e00572 100644 (file)
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -500,6 +500,7 @@ void invert_screen(struct vc_data *vc, int offset, int count, int viewed)
 #endif
        if (DO_UPDATE(vc))
                do_update_region(vc, (unsigned long) p, count);
+       notify_update(vc);
 }
 
 /* used by selection: complement pointer position */
@@ -516,6 +517,7 @@ void complement_pos(struct vc_data *vc, int offset)
                scr_writew(old, screenpos(vc, old_offset, 1));
                if (DO_UPDATE(vc))
                        vc->vc_sw->con_putc(vc, old, oldy, oldx);
+               notify_update(vc);
        }
 
        old_offset = offset;
@@ -533,8 +535,8 @@ void complement_pos(struct vc_data *vc, int offset)
                        oldy = (offset >> 1) / vc->vc_cols;
                        vc->vc_sw->con_putc(vc, new, oldy, oldx);
                }
+               notify_update(vc);
        }
-
 }
 
 static void insert_char(struct vc_data *vc, unsigned int nr)