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authorHeiko Carstens <heiko.carstens@de.ibm.com>2017-03-09 10:02:28 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2017-03-22 08:29:07 +0100
commit251ea0ca408b827e888d622eac5e89e4b9502ea2 (patch)
treee7f4b5b0f81f2d3c5088bca0cdccb7944f93f365 /arch/s390/kernel/topology.c
parents390/bitops: remove outdated comment (diff)
downloadlinux-dev-251ea0ca408b827e888d622eac5e89e4b9502ea2.tar.xz
linux-dev-251ea0ca408b827e888d622eac5e89e4b9502ea2.zip
s390/topology: get rid of core mask array
Use a single long value instead of a single element array to represent the core mask. The array is a leftover from 32/31 bit code so we were able to use bitops helper functions. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to '')
-rw-r--r--arch/s390/kernel/topology.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 17660e800e74..0537130fb915 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -83,6 +83,8 @@ static cpumask_t cpu_thread_map(unsigned int cpu)
return mask;
}
+#define TOPOLOGY_CORE_BITS 64
+
static void add_cpus_to_mask(struct topology_core *tl_core,
struct mask_info *drawer,
struct mask_info *book,
@@ -91,7 +93,7 @@ static void add_cpus_to_mask(struct topology_core *tl_core,
struct cpu_topology_s390 *topo;
unsigned int core;
- for_each_set_bit(core, &tl_core->mask[0], TOPOLOGY_CORE_BITS) {
+ for_each_set_bit(core, &tl_core->mask, TOPOLOGY_CORE_BITS) {
unsigned int rcore;
int lcpu, i;