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61 lines
1.9 KiB
Diff
61 lines
1.9 KiB
Diff
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From 615dc14d7d29e2ff36e1da3cbb421884137bb7eb Mon Sep 17 00:00:00 2001
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From: Lars-Peter Clausen <lars@metafoo.de>
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Date: Tue, 21 Jul 2009 12:51:00 +0200
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Subject: [PATCH] 080-nr-tty-devices.patch
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---
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drivers/char/Kconfig | 12 ++++++++++++
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include/linux/vt.h | 11 +++++++++++
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2 files changed, 23 insertions(+), 0 deletions(-)
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diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
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index 6a06913..8e17552 100644
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--- a/drivers/char/Kconfig
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+++ b/drivers/char/Kconfig
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@@ -66,6 +66,18 @@ config VT_CONSOLE
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If unsure, say Y.
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+config NR_TTY_DEVICES
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+ int "Maximum tty device number"
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+ depends on VT
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+ default 63
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+ ---help---
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+ This is the highest numbered device created in /dev. You will actually have
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+ NR_TTY_DEVICES+1 devices in /dev. The default is 63, which will result in
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+ 64 /dev entries. The lowest number you can set is 11, anything below that,
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+ and it will default to 11. 63 is also the upper limit so we don't overrun
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+ the serial consoles.
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+
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+
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config HW_CONSOLE
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bool
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depends on VT && !S390 && !UML
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diff --git a/include/linux/vt.h b/include/linux/vt.h
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index 02c1c02..2ba4d21 100644
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--- a/include/linux/vt.h
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+++ b/include/linux/vt.h
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@@ -18,8 +18,19 @@ extern int unregister_vt_notifier(struct notifier_block *nb);
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* resizing).
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*/
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#define MIN_NR_CONSOLES 1 /* must be at least 1 */
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+#if (CONFIG_NR_TTY_DEVICES < 4)
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+/* Lower Limit */
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+#define MAX_NR_CONSOLES 4 /* serial lines start at 64 */
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+#define MAX_NR_USER_CONSOLES 4 /* must be root to allocate above this */
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+#elif (CONFIG_NR_TTY_DEVICES > 63)
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+/* Upper Limit */
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#define MAX_NR_CONSOLES 63 /* serial lines start at 64 */
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#define MAX_NR_USER_CONSOLES 63 /* must be root to allocate above this */
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+#else
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+/* They chose a sensible number */
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+#define MAX_NR_CONSOLES CONFIG_NR_TTY_DEVICES
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+#define MAX_NR_USER_CONSOLES CONFIG_NR_TTY_DEVICES
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+#endif
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/* Note: the ioctl VT_GETSTATE does not work for
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consoles 16 and higher (since it returns a short) */
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--
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1.5.6.5
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