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[PATCH] vt: Delay the update of the visible console

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Delay the update of the visible framebuffer console until all other consoles
have been initialized in order to avoid losing information.  This only seems
to be a problem with modules, not with built-in drivers.

Signed-off-by: David Hollister <david.hollister@amd.com>
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
David Hollister 2006-06-26 00:26:41 -07:00 committed by Linus Torvalds
parent 6dbde380ca
commit 4ee1acce49
1 changed files with 17 additions and 9 deletions
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26
drivers/char/vt.c
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@ -2665,7 +2665,7 @@ int __init vty_init(void)
int take_over_console(const struct consw *csw, int first, int last, int deflt)
{
int i, j = -1;
int i, j = -1, k = -1;
const char *desc;
struct module *owner;
@ -2701,8 +2701,11 @@ int take_over_console(const struct consw *csw, int first, int last, int deflt)
continue;
j = i;
if (CON_IS_VISIBLE(vc))
if (CON_IS_VISIBLE(vc)) {
k = i;
save_screen(vc);
}
old_was_color = vc->vc_can_do_color;
vc->vc_sw->con_deinit(vc);
vc->vc_origin = (unsigned long)vc->vc_screenbuf;
@ -2718,18 +2721,23 @@ int take_over_console(const struct consw *csw, int first, int last, int deflt)
*/
if (old_was_color != vc->vc_can_do_color)
clear_buffer_attributes(vc);
if (CON_IS_VISIBLE(vc))
update_screen(vc);
}
printk("Console: switching ");
if (!deflt)
printk("consoles %d-%d ", first+1, last+1);
if (j >= 0)
if (j >= 0) {
struct vc_data *vc = vc_cons[j].d;
printk("to %s %s %dx%d\n",
vc_cons[j].d->vc_can_do_color ? "colour" : "mono",
desc, vc_cons[j].d->vc_cols, vc_cons[j].d->vc_rows);
else
vc->vc_can_do_color ? "colour" : "mono",
desc, vc->vc_cols, vc->vc_rows);
if (k >= 0) {
vc = vc_cons[k].d;
update_screen(vc);
}
} else
printk("to %s\n", desc);
release_console_sem();