--- /dev/null
+Subject: tiocgdev ioctl
+Patch-mainline: never, lkml guys don't like it
+From: kraxel@suse.de
+
+add tty ioctl to figure physical device of the console.
+
+ arch/alpha/include/asm/ioctls.h | 1 +
+ arch/arm/include/asm/ioctls.h | 1 +
+ arch/ia64/include/asm/ioctls.h | 1 +
+ arch/m68k/include/asm/ioctls.h | 1 +
+ arch/mips/include/asm/ioctls.h | 1 +
+ arch/powerpc/include/asm/ioctls.h | 1 +
+ arch/s390/include/asm/ioctls.h | 1 +
+ arch/sh/include/asm/ioctls.h | 1 +
+ arch/sparc/include/asm/ioctls.h | 1 +
+ arch/x86/include/asm/ioctls.h | 1 +
+ drivers/char/tty_io.c | 15 +++++++++++++++
+ fs/compat_ioctl.c | 1 +
+ 12 files changed, 26 insertions(+)
+
+--- a/arch/alpha/include/asm/ioctls.h
++++ b/arch/alpha/include/asm/ioctls.h
+@@ -91,6 +91,7 @@
+ #define TIOCGSID 0x5429 /* Return the session ID of FD */
+ #define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+ #define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
++#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
+
+ #define TIOCSERCONFIG 0x5453
+ #define TIOCSERGWILD 0x5454
+--- a/arch/arm/include/asm/ioctls.h
++++ b/arch/arm/include/asm/ioctls.h
+@@ -52,6 +52,7 @@
+ #define TCSETSF2 _IOW('T',0x2D, struct termios2)
+ #define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+ #define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
++#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
+
+ #define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
+ #define FIOCLEX 0x5451
+--- a/arch/ia64/include/asm/ioctls.h
++++ b/arch/ia64/include/asm/ioctls.h
+@@ -59,6 +59,7 @@
+ #define TCSETSF2 _IOW('T',0x2D, struct termios2)
+ #define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+ #define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
++#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
+
+ #define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
+ #define FIOCLEX 0x5451
+--- a/arch/m68k/include/asm/ioctls.h
++++ b/arch/m68k/include/asm/ioctls.h
+@@ -52,6 +52,7 @@
+ #define TCSETSF2 _IOW('T',0x2D, struct termios2)
+ #define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+ #define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
++#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
+
+ #define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
+ #define FIOCLEX 0x5451
+--- a/arch/mips/include/asm/ioctls.h
++++ b/arch/mips/include/asm/ioctls.h
+@@ -83,6 +83,7 @@
+ #define TCSETSF2 _IOW('T', 0x2D, struct termios2)
+ #define TIOCGPTN _IOR('T', 0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+ #define TIOCSPTLCK _IOW('T', 0x31, int) /* Lock/unlock Pty */
++#define TIOCGDEV _IOR('T', 0x32, unsigned int) /* Get real dev no below /dev/console */
+
+ /* I hope the range from 0x5480 on is free ... */
+ #define TIOCSCTTY 0x5480 /* become controlling tty */
+--- a/arch/powerpc/include/asm/ioctls.h
++++ b/arch/powerpc/include/asm/ioctls.h
+@@ -93,6 +93,7 @@
+ #define TIOCSRS485 0x542f
+ #define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+ #define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
++#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
+
+ #define TIOCSERCONFIG 0x5453
+ #define TIOCSERGWILD 0x5454
+--- a/arch/s390/include/asm/ioctls.h
++++ b/arch/s390/include/asm/ioctls.h
+@@ -60,6 +60,7 @@
+ #define TCSETSF2 _IOW('T',0x2D, struct termios2)
+ #define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+ #define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
++#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
+
+ #define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
+ #define FIOCLEX 0x5451
+--- a/arch/sh/include/asm/ioctls.h
++++ b/arch/sh/include/asm/ioctls.h
+@@ -84,6 +84,7 @@
+ #define TCSETSF2 _IOW('T', 45, struct termios2)
+ #define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+ #define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
++#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
+
+ #define TIOCSERCONFIG _IO('T', 83) /* 0x5453 */
+ #define TIOCSERGWILD _IOR('T', 84, int) /* 0x5454 */
+--- a/arch/sparc/include/asm/ioctls.h
++++ b/arch/sparc/include/asm/ioctls.h
+@@ -19,6 +19,7 @@
+ #define TCSETS2 _IOW('T', 13, struct termios2)
+ #define TCSETSW2 _IOW('T', 14, struct termios2)
+ #define TCSETSF2 _IOW('T', 15, struct termios2)
++#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
+
+ /* Note that all the ioctls that are not available in Linux have a
+ * double underscore on the front to: a) avoid some programs to
+--- a/arch/x86/include/asm/ioctls.h
++++ b/arch/x86/include/asm/ioctls.h
+@@ -56,6 +56,7 @@
+ #define TIOCGPTN _IOR('T', 0x30, unsigned int)
+ /* Get Pty Number (of pty-mux device) */
+ #define TIOCSPTLCK _IOW('T', 0x31, int) /* Lock/unlock Pty */
++#define TIOCGDEV _IOR('T', 0x32, unsigned int) /* Get real dev no below /dev/console */
+ #define TCGETX 0x5432 /* SYS5 TCGETX compatibility */
+ #define TCSETX 0x5433
+ #define TCSETXF 0x5434
+--- a/drivers/char/tty_io.c
++++ b/drivers/char/tty_io.c
+@@ -2507,6 +2507,21 @@ long tty_ioctl(struct file *file, unsign
+ case TIOCSETD:
+ return tiocsetd(tty, p);
+ /*
++ * Without the real device to which /dev/console is connected,
++ * blogd can not work.
++ * blogd spawns a pty/tty pair,
++ * set /dev/console to the tty of that pair (ioctl TIOCCONS),
++ * then reads in all input from the current /dev/console,
++ * buffer or write the readed data to /var/log/boot.msg
++ * _and_ to the original real device.
++ */
++ case TIOCGDEV:
++ {
++ unsigned int ret = new_encode_dev(tty_devnum(real_tty));
++ return put_user(ret, (unsigned int __user *)p);
++ }
++
++ /*
+ * Break handling
+ */
+ case TIOCSBRK: /* Turn break on, unconditionally */
+--- a/fs/compat_ioctl.c
++++ b/fs/compat_ioctl.c
+@@ -1866,6 +1866,7 @@ COMPATIBLE_IOCTL(TCSETSW)
+ COMPATIBLE_IOCTL(TCSETSF)
+ COMPATIBLE_IOCTL(TIOCLINUX)
+ COMPATIBLE_IOCTL(TIOCSBRK)
++COMPATIBLE_IOCTL(TIOCGDEV)
+ COMPATIBLE_IOCTL(TIOCCBRK)
+ ULONG_IOCTL(TIOCMIWAIT)
+ COMPATIBLE_IOCTL(TIOCGICOUNT)