diff options
-rw-r--r-- | arch/s390/kernel/processor.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c index 647128d..90a418d 100644 --- a/arch/s390/kernel/processor.c +++ b/arch/s390/kernel/processor.c @@ -84,7 +84,6 @@ static int show_cpuinfo(struct seq_file *m, void *v) seq_puts(m, "\n"); show_cacheinfo(m); } - get_online_cpus(); if (cpu_online(n)) { struct cpuid *id = &per_cpu(cpu_id, n); seq_printf(m, "processor %li: " @@ -93,23 +92,31 @@ static int show_cpuinfo(struct seq_file *m, void *v) "machine = %04X\n", n, id->version, id->ident, id->machine); } - put_online_cpus(); return 0; } +static inline void *c_update(loff_t *pos) +{ + if (*pos) + *pos = cpumask_next(*pos - 1, cpu_online_mask); + return *pos < nr_cpu_ids ? (void *)*pos + 1 : NULL; +} + static void *c_start(struct seq_file *m, loff_t *pos) { - return *pos < nr_cpu_ids ? (void *)((unsigned long) *pos + 1) : NULL; + get_online_cpus(); + return c_update(pos); } static void *c_next(struct seq_file *m, void *v, loff_t *pos) { ++*pos; - return c_start(m, pos); + return c_update(pos); } static void c_stop(struct seq_file *m, void *v) { + put_online_cpus(); } const struct seq_operations cpuinfo_op = { |