[S390] topology: change default
Switch default value of the kernel parameter 'topology' from off to on.
Various performance measurements have finally shown that there are no
(known) regressions anywhere.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 0b68155..b660085 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2438,7 +2438,7 @@
topology informations if the hardware supports these.
The scheduler will make use of these informations and
e.g. base its process migration decisions on it.
- Default is off.
+ Default is on.
tp720= [HW,PS2]
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 13559c9..eb0bc47 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -63,7 +63,7 @@
cpumask_t mask;
};
-static int topology_enabled;
+static int topology_enabled = 1;
static void topology_work_fn(struct work_struct *work);
static struct tl_info *tl_info;
static int machine_has_topology;
@@ -311,9 +311,9 @@
static int __init early_parse_topology(char *p)
{
- if (strncmp(p, "on", 2))
+ if (strncmp(p, "off", 3))
return 0;
- topology_enabled = 1;
+ topology_enabled = 0;
return 0;
}
early_param("topology", early_parse_topology);
