From: Jeff Dike <jdike@addtoit.com>
Date: Thu, 5 May 2005 23:15:30 +0000 (-0700)
Subject: [PATCH] uml: fix a ptrace call
X-Git-Tag: v2.6.12-rc4~89
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ea66e8a3b6c4760e8fbf59b1becb6bd8e3dd5376;p=linux-2.6

[PATCH] uml: fix a ptrace call

This fixes write_ldt_entry to treat userspace_pid as an array.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/um/sys-i386/ldt.c b/arch/um/sys-i386/ldt.c
index 31bcb2f997..dc755b0b9d 100644
--- a/arch/um/sys-i386/ldt.c
+++ b/arch/um/sys-i386/ldt.c
@@ -25,7 +25,7 @@ int sys_modify_ldt_tt(int func, void __user *ptr, unsigned long bytecount)
 #endif
 
 #ifdef CONFIG_MODE_SKAS
-extern int userspace_pid;
+extern int userspace_pid[];
 
 #include "skas_ptrace.h"
 
@@ -56,7 +56,8 @@ int sys_modify_ldt_skas(int func, void __user *ptr, unsigned long bytecount)
 	ldt = ((struct ptrace_ldt) { .func	= func,
 				     .ptr	= buf,
 				     .bytecount = bytecount });
-	res = ptrace(PTRACE_LDT, userspace_pid, 0, (unsigned long) &ldt);
+#warning Need to look up userspace_pid by cpu
+	res = ptrace(PTRACE_LDT, userspace_pid[0], 0, (unsigned long) &ldt);
 	if(res < 0)
 		goto out;