s390/cache: remove superfluous locking

With "s390/cpuinfo: simplify locking and skip offline cpus early" we
prevent already that cpus will go away. The additional
get_online_cpus() / put_online_cpus() within show_cacheinfo() is not
needed anymore.

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

diff --git a/arch/s390/kernel/cache.c b/arch/s390/kernel/cache.c
index 8ba3243..77a84bd 100644 (file)
--- a/arch/s390/kernel/cache.c
+++ b/arch/s390/kernel/cache.c
@@ -72,7 +72,6 @@ void show_cacheinfo(struct seq_file *m)
 
        if (!test_facility(34))
                return;
-       get_online_cpus();
        this_cpu_ci = get_cpu_cacheinfo(cpumask_any(cpu_online_mask));
        for (idx = 0; idx < this_cpu_ci->num_leaves; idx++) {
                cache = this_cpu_ci->info_list + idx;
@@ -86,7 +85,6 @@ void show_cacheinfo(struct seq_file *m)
                seq_printf(m, "associativity=%d", cache->ways_of_associativity);
                seq_puts(m, "\n");
        }
-       put_online_cpus();
 }
 
 static inline enum cache_type get_cache_type(struct cache_info *ci, int level)