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authorHeiko Carstens <heiko.carstens@de.ibm.com>2010-10-29 16:50:37 +0200
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-10-29 16:50:49 +0200
commit8d11e0218321fccc6912c4dcfbaf2095bad5d33a (patch)
tree6c26fd32b731c22027ed325d353fdd49ef34eaff /arch/s390/kernel
parentdb81a23d8003d1ca4452c6d728502780f0234368 (diff)
downloadlinux-linaro-android-8d11e0218321fccc6912c4dcfbaf2095bad5d33a.tar.gz
[S390] topology: add SCHED_MC config option
This allows us to easily check for performance differences seen with !CONFIG_SCHED_MC and topology=off. Actually there shouldn't be any (besides a small overhead because of additional code). Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/sysinfo.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c
index f04d93aa48e..5c9e439bf3f 100644
--- a/arch/s390/kernel/sysinfo.c
+++ b/arch/s390/kernel/sysinfo.c
@@ -106,11 +106,13 @@ static int stsi_15_1_x(struct sysinfo_15_1_x *info, char *page, int len)
for (i = 0; i < TOPOLOGY_NR_MAG; i++)
len += sprintf(page + len, " %d", info->mag[i]);
len += sprintf(page + len, "\n");
+#ifdef CONFIG_SCHED_MC
store_topology(info);
len += sprintf(page + len, "CPU Topology SW: ");
for (i = 0; i < TOPOLOGY_NR_MAG; i++)
len += sprintf(page + len, " %d", info->mag[i]);
len += sprintf(page + len, "\n");
+#endif
return len;
}