[PATCH] no TIOCSBRK/TIOCCBRK in ia32 emulation on amd64

[Werner Almesberger]

In ia32 emulation, the amd64 kernel refuses the ioctls TIOCSBRK
and TIOCCBRK with EINVAL. I've attached a patch that adds them to
the compatibility list.

Since all architectures have these ioctls ("m68knommu" inherits
them from "m68k", "um" from its host) and use the same code, I
think adding them to compat_ioctl.h is the correct choice (as
opposed to adding them to arch/x86_64/ia32/ia32_ioctl.c).

The patch is for 2.6.9. I've observed the problem the first time
in 2.6.7.

- Werner

---------------------------------- cut here -----------------------------------

Signed-off-by: Werner Almesberger <werner@xxxxxxxxxxxxxxx>

--- linux-2.6.9/include/linux/compat_ioctl.h.orig	2004-10-19 18:52:50.406756352 -0300
+++ linux-2.6.9/include/linux/compat_ioctl.h	2004-10-19 18:56:34.057756232 -0300
@@ -23,6 +23,8 @@
 COMPATIBLE_IOCTL(TCSETSW)
 COMPATIBLE_IOCTL(TCSETSF)
 COMPATIBLE_IOCTL(TIOCLINUX)
+COMPATIBLE_IOCTL(TIOCSBRK)
+COMPATIBLE_IOCTL(TIOCCBRK)
 /* Little t */
 COMPATIBLE_IOCTL(TIOCGETD)
 COMPATIBLE_IOCTL(TIOCSETD)

-- 
  _________________________________________________________________________
 / Werner Almesberger, Buenos Aires, Argentina     werner@xxxxxxxxxxxxxxx /
/_http://www.almesberger.net/____________________________________________/
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