[S390] Enable guest page hinting by default.

Get rid of the PAGE_STATES config option and enable guest page hinting
by default.
It can be disabled by specifying "cmma=off" at the command line.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2 files changed, 4 insertions, 6 deletions

diff --git a/arch/s390/mm/Makefile b/arch/s390/mm/Makefile
index db05661ac895..eec054484419 100644
--- a/arch/s390/mm/Makefile
+++ b/arch/s390/mm/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the linux s390-specific parts of the memory manager.
 #
 
-obj-y    := init.o fault.o extmem.o mmap.o vmem.o pgtable.o maccess.o
+obj-y    := init.o fault.o extmem.o mmap.o vmem.o pgtable.o maccess.o \
+            page-states.o
 obj-$(CONFIG_CMM) += cmm.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
-obj-$(CONFIG_PAGE_STATES) += page-states.o
diff --git a/arch/s390/mm/page-states.c b/arch/s390/mm/page-states.c
index fc0ad73ffd90..f92ec203ad92 100644
--- a/arch/s390/mm/page-states.c
+++ b/arch/s390/mm/page-states.c
@@ -1,6 +1,4 @@
 /*
- * arch/s390/mm/page-states.c
- *
  * Copyright IBM Corp. 2008
  *
  * Guest page hinting for unused pages.
@@ -17,11 +15,12 @@
 #define ESSA_SET_STABLE         1
 #define ESSA_SET_UNUSED         2
 
-static int cmma_flag;
+static int cmma_flag = 1;
 
 static int __init cmma(char *str)
 {
         char *parm;
+
         parm = strstrip(str);
         if (strcmp(parm, "yes") == 0 || strcmp(parm, "on") == 0) {
                 cmma_flag = 1;
@@ -32,7 +31,6 @@ static int __init cmma(char *str)
                 return 1;
         return 0;
 }
-
 __setup("cmma=", cmma);
 
 void __init cmma_init(void)