diff mbox

vt: provide notifications on selection changes

Message ID alpine.LFD.2.11.1501231636200.1322@knanqh.ubzr
State Accepted
Commit 19e3ae6b4f07a87822c1c9e7ed99d31860e701af
Headers show

Commit Message

Nicolas Pitre Jan. 23, 2015, 10:07 p.m. UTC 
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>

---

Greg: Would be highly convenient to have this patch applied to the 
stable tree as well to help affected blind Linux users via distro 
updates.  Yet it took a while before this issue was discovered. Your 
call.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/
diff mbox

Patch

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index f7f5ed1..84252a0 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -502,6 +502,7 @@  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 */
@@ -518,6 +519,7 @@  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;
@@ -535,8 +537,8 @@  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)