x86_64: PTRACE_[GS]ET_THREAD_AREA should be accepted

[Paolo 'Blaisorblade' Giarrusso]

This patch backports from 2.6.19 a fix to a 2.6.18 regression.

Like for PTRACE_OLDSETOPTIONS, we should fix PTRACE_[GS]ET_THREAD_AREA. This had
been done already for 2.6.19, so this is for 2.6.18-stable only.
This was tested with UML/32bit as API consumer, both before and after this
patch.

Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@xxxxxxxx>
Index: linux-2.6.18/arch/x86_64/ia32/ptrace32.c
===================================================================
--- linux-2.6.18.orig/arch/x86_64/ia32/ptrace32.c
+++ linux-2.6.18/arch/x86_64/ia32/ptrace32.c
@@ -241,6 +241,8 @@ asmlinkage long sys32_ptrace(long reques
 	case PTRACE_SYSCALL:
 	case PTRACE_OLDSETOPTIONS:
 	case PTRACE_SETOPTIONS:
+	case PTRACE_SET_THREAD_AREA:
+	case PTRACE_GET_THREAD_AREA:
 		return sys_ptrace(request, pid, addr, data); 
 
 	default:


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