diff options
Diffstat (limited to 'drivers/tty/vt/vt.c')
| -rw-r--r-- | drivers/tty/vt/vt.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 4bea1efaec98..b3915b7ad3e2 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -1,6 +1,4 @@ /* - * linux/drivers/char/vt.c - * * Copyright (C) 1991, 1992 Linus Torvalds */ @@ -858,7 +856,7 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc, { unsigned long old_origin, new_origin, new_scr_end, rlth, rrem, err = 0; unsigned long end; - unsigned int old_cols, old_rows, old_row_size, old_screen_size; + unsigned int old_rows, old_row_size; unsigned int new_cols, new_rows, new_row_size, new_screen_size; unsigned int user; unsigned short *newscreen; @@ -887,9 +885,7 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc, return -ENOMEM; old_rows = vc->vc_rows; - old_cols = vc->vc_cols; old_row_size = vc->vc_size_row; - old_screen_size = vc->vc_screenbuf_size; err = resize_screen(vc, new_cols, new_rows, user); if (err) { @@ -1197,6 +1193,13 @@ static void csi_J(struct vc_data *vc, int vpar) vc->vc_x + 1); } break; + case 3: /* erase scroll-back buffer (and whole display) */ + scr_memsetw(vc->vc_screenbuf, vc->vc_video_erase_char, + vc->vc_screenbuf_size >> 1); + set_origin(vc); + if (CON_IS_VISIBLE(vc)) + update_screen(vc); + /* fall through */ case 2: /* erase whole display */ count = vc->vc_cols * vc->vc_rows; start = (unsigned short *)vc->vc_origin; |