[PATCH] Fix UML on non-standard VM split hosts

This fixes UML on hosts with non-standard VM splits.  We had changed the
config variable that controls UML behavior on such hosts, but not
propogated the change everywhere.  In particular, the values of STUB_CODE
and STUB_DATA relied on the old variable.

I also reformatted the HOST_VMSPLIT_3G help to make it more standard.

Spotted by uml@flonatel.org.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Blaisorblade <blaisorblade@yahoo.it>
Cc: Pravin <shindepravin@gmail.com>
Cc: <uml@flonatel.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/um/Kconfig.i386

@@ -19,22 +19,22 @@ config SEMAPHORE_SLEEPERS
 choice
 	prompt "Host memory split"
 	default HOST_VMSPLIT_3G
-	---help---
-	   This is needed when the host kernel on which you run has a non-default
-	   (like 2G/2G) memory split, instead of the customary 3G/1G. If you did
-	   not recompile your own kernel but use the default distro's one, you can
-	   safely accept the "Default split" option.
+	help
+        This is needed when the host kernel on which you run has a non-default
+	(like 2G/2G) memory split, instead of the customary 3G/1G. If you did
+	not recompile your own kernel but use the default distro's one, you can
+	safely accept the "Default split" option.
 
-	   It can be enabled on recent (>=2.6.16-rc2) vanilla kernels via
-	   CONFIG_VM_SPLIT_*, or on previous kernels with special patches (-ck
-	   patchset by Con Kolivas, or other ones) - option names match closely the
-	   host CONFIG_VM_SPLIT_* ones.
+	It can be enabled on recent (>=2.6.16-rc2) vanilla kernels via
+	CONFIG_VM_SPLIT_*, or on previous kernels with special patches (-ck
+	patchset by Con Kolivas, or other ones) - option names match closely the
+	host CONFIG_VM_SPLIT_* ones.
 
-	   A lower setting (where 1G/3G is lowest and 3G/1G is higher) will
-	   tolerate even more "normal" host kernels, but an higher setting will be
-	   stricter.
+	A lower setting (where 1G/3G is lowest and 3G/1G is higher) will
+	tolerate even more "normal" host kernels, but an higher setting will be
+	stricter.
 
-	   So, if you do not know what to do here, say 'Default split'.
+	So, if you do not know what to do here, say 'Default split'.
 
 	config HOST_VMSPLIT_3G
 		bool "Default split (3G/1G user/kernel host split)"
@@ -67,13 +67,13 @@ config 3_LEVEL_PGTABLES
 
 config STUB_CODE
 	hex
-	default 0xbfffe000 if !HOST_2G_2G
-	default 0x7fffe000 if HOST_2G_2G
+	default 0xbfffe000 if !HOST_VMSPLIT_2G
+	default 0x7fffe000 if HOST_VMSPLIT_2G
 
 config STUB_DATA
 	hex
-	default 0xbffff000 if !HOST_2G_2G
-	default 0x7ffff000 if HOST_2G_2G
+	default 0xbffff000 if !HOST_VMSPLIT_2G
+	default 0x7ffff000 if HOST_VMSPLIT_2G
 
 config STUB_START
 	hex