qubes-linux-kernel/patches.xen/add-console-use-vt

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Subject: add console_use_vt
From: kraxel@suse.de
Patch-mainline: no
$subject says all
--- head-2010-05-25.orig/drivers/char/tty_io.c 2010-05-25 09:12:10.000000000 +0200
+++ head-2010-05-25/drivers/char/tty_io.c 2010-05-25 09:13:34.000000000 +0200
@@ -136,6 +136,8 @@ LIST_HEAD(tty_drivers); /* linked list
DEFINE_MUTEX(tty_mutex);
EXPORT_SYMBOL(tty_mutex);
+int console_use_vt = 1;
+
static ssize_t tty_read(struct file *, char __user *, size_t, loff_t *);
static ssize_t tty_write(struct file *, const char __user *, size_t, loff_t *);
ssize_t redirected_tty_write(struct file *, const char __user *,
@@ -1778,7 +1780,7 @@ retry_open:
goto got_driver;
}
#ifdef CONFIG_VT
- if (device == MKDEV(TTY_MAJOR, 0)) {
+ if (console_use_vt && device == MKDEV(TTY_MAJOR, 0)) {
extern struct tty_driver *console_driver;
driver = tty_driver_kref_get(console_driver);
index = fg_console;
@@ -3160,7 +3162,8 @@ static int __init tty_init(void)
"console");
#ifdef CONFIG_VT
- vty_init(&console_fops);
+ if (console_use_vt)
+ vty_init(&console_fops);
#endif
return 0;
}
--- head-2010-05-25.orig/include/linux/console.h 2010-05-25 09:12:10.000000000 +0200
+++ head-2010-05-25/include/linux/console.h 2010-01-19 14:51:01.000000000 +0100
@@ -63,6 +63,7 @@ extern const struct consw dummy_con; /*
extern const struct consw vga_con; /* VGA text console */
extern const struct consw newport_con; /* SGI Newport console */
extern const struct consw prom_con; /* SPARC PROM console */
+extern int console_use_vt;
int con_is_bound(const struct consw *csw);
int register_con_driver(const struct consw *csw, int first, int last);