[PATCH] get_thread_area macro fixes

From: Adam Lackorzynski <adam@os.inf.tu-dresden.de>

one of the macros for get_thread_area extracts the wrong bit.  The
"32bit" field is in bit 22, not 23 (as can be seen in desc.h). 

[ Fix ia64/x86-64 too, while we're at it. Linus ]

arch/i386/kernel/process.c

@@ -737,7 +737,7 @@ asmlinkage int sys_set_thread_area(struct user_desc __user *u_info)
 	((desc)->a & 0x0ffff) | \
 	 ((desc)->b & 0xf0000) )
 	
-#define GET_32BIT(desc)		(((desc)->b >> 23) & 1)
+#define GET_32BIT(desc)		(((desc)->b >> 22) & 1)
 #define GET_CONTENTS(desc)	(((desc)->b >> 10) & 3)
 #define GET_WRITABLE(desc)	(((desc)->b >>  9) & 1)
 #define GET_LIMIT_PAGES(desc)	(((desc)->b >> 23) & 1)

arch/i386/kernel/ptrace.c

@@ -174,7 +174,7 @@ ptrace_get_thread_area(struct task_struct *child,
 	((desc)->a & 0x0ffff) | \
 	 ((desc)->b & 0xf0000) )
 
-#define GET_32BIT(desc)		(((desc)->b >> 23) & 1)
+#define GET_32BIT(desc)		(((desc)->b >> 22) & 1)
 #define GET_CONTENTS(desc)	(((desc)->b >> 10) & 3)
 #define GET_WRITABLE(desc)	(((desc)->b >>  9) & 1)
 #define GET_LIMIT_PAGES(desc)	(((desc)->b >> 23) & 1)

arch/ia64/ia32/sys_ia32.c

@@ -2073,7 +2073,7 @@ sys32_set_thread_area (struct ia32_user_desc *u_info)
 	((desc)->a & 0x0ffff) |			\
 	 ((desc)->b & 0xf0000) )
 
-#define GET_32BIT(desc)		(((desc)->b >> 23) & 1)
+#define GET_32BIT(desc)		(((desc)->b >> 22) & 1)
 #define GET_CONTENTS(desc)	(((desc)->b >> 10) & 3)
 #define GET_WRITABLE(desc)	(((desc)->b >>  9) & 1)
 #define GET_LIMIT_PAGES(desc)	(((desc)->b >> 23) & 1)

arch/x86_64/ia32/tls32.c

@@ -94,7 +94,7 @@ asmlinkage long sys32_set_thread_area(struct user_desc *u_info)
 	((desc)->a & 0x0ffff) | \
 	 ((desc)->b & 0xf0000) )
 	
-#define GET_32BIT(desc)		(((desc)->b >> 23) & 1)
+#define GET_32BIT(desc)		(((desc)->b >> 22) & 1)
 #define GET_CONTENTS(desc)	(((desc)->b >> 10) & 3)
 #define GET_WRITABLE(desc)	(((desc)->b >>  9) & 1)
 #define GET_LIMIT_PAGES(desc)	(((desc)->b >> 23) & 1)