diff options
Diffstat (limited to 'drivers/tty/vt/vt.c')
| -rw-r--r-- | drivers/tty/vt/vt.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index f97251f39c26..1eb1a376a041 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -1178,15 +1178,8 @@ static void csi_J(struct vc_data *vc, int vpar) count = ((vc->vc_pos - vc->vc_origin) >> 1) + 1; start = (unsigned short *)vc->vc_origin; break; - case 3: /* erase scroll-back buffer (and whole display) */ - scr_memsetw(vc->vc_screenbuf, vc->vc_video_erase_char, - vc->vc_screenbuf_size); - flush_scrollback(vc); - set_origin(vc); - if (con_is_visible(vc)) - update_screen(vc); - /* fall through */ case 2: /* erase whole display */ + case 3: /* (and scrollback buffer later) */ count = vc->vc_cols * vc->vc_rows; start = (unsigned short *)vc->vc_origin; break; @@ -1194,7 +1187,12 @@ static void csi_J(struct vc_data *vc, int vpar) return; } scr_memsetw(start, vc->vc_video_erase_char, 2 * count); - if (con_should_update(vc)) + if (vpar == 3) { + set_origin(vc); + flush_scrollback(vc); + if (con_is_visible(vc)) + update_screen(vc); + } else if (con_should_update(vc)) do_update_region(vc, (unsigned long) start, count); vc->vc_need_wrap = 0; } |