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authorKay Sievers <kay.sievers@vrfy.org>2007-08-15 14:25:38 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-13 01:51:09 +0400
commitdc8c85871c9728c5fddca6854a191fd41eb9438c (patch)
treed56e7a4c4d797d6696f24ef374cfd35865d5a5dd /drivers/char/pty.c
parent45aaae9c51d768d5a8fd53fb372b1eb714f37691 (diff)
downloadlinux-dc8c85871c9728c5fddca6854a191fd41eb9438c.tar.xz
PTY: add kernel parameter to overwrite legacy pty count
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/char/pty.c')
-rw-r--r--drivers/char/pty.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index de14aea34e11..73de77105fea 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -248,14 +248,19 @@ static int pty_bsd_ioctl(struct tty_struct *tty, struct file *file,
return -ENOIOCTLCMD;
}
+static int legacy_count = CONFIG_LEGACY_PTY_COUNT;
+module_param(legacy_count, int, 0);
+
static void __init legacy_pty_init(void)
{
+ if (legacy_count <= 0)
+ return;
- pty_driver = alloc_tty_driver(NR_PTYS);
+ pty_driver = alloc_tty_driver(legacy_count);
if (!pty_driver)
panic("Couldn't allocate pty driver");
- pty_slave_driver = alloc_tty_driver(NR_PTYS);
+ pty_slave_driver = alloc_tty_driver(legacy_count);
if (!pty_slave_driver)
panic("Couldn't allocate pty slave driver");