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tick-broadcast: Fix the printing of broadcast masks 

Today the number of bits of the broadcast masks that is output into
/proc/timer_list is sizeof(unsigned long). This means that on machines
with a larger number of CPUs, the bitmasks of CPUs beyond this range do
not appear.

Fix this by using bitmap printing through "%*pb" instead, so as to
output the broadcast masks for the range of nr_cpu_ids into
/proc/timer_list.

Signed-off-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Cc: peterz@infradead.org
Cc: linuxppc-dev@ozlabs.org
Cc: john.stultz@linaro.org
Link: http://lkml.kernel.org/r/20150428084520.3314.62668.stgit@preeti.in.ibm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Preeti U Murthy 2015-04-28 14:15:20 +05:30 committed by Thomas Gleixner
parent 298dbd1c5c
commit 1ef09cd713
1 changed files with 4 additions and 4 deletions
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8
kernel/time/timer_list.c
View File

@ -276,11 +276,11 @@ static void timer_list_show_tickdevices_header(struct seq_file *m)
{
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
print_tickdevice(m, tick_get_broadcast_device(), -1);
SEQ_printf(m, "tick_broadcast_mask: %08lx\n",
cpumask_bits(tick_get_broadcast_mask())[0]);
SEQ_printf(m, "tick_broadcast_mask: %*pb\n",
cpumask_pr_args(tick_get_broadcast_mask()));
#ifdef CONFIG_TICK_ONESHOT
SEQ_printf(m, "tick_broadcast_oneshot_mask: %08lx\n",
cpumask_bits(tick_get_broadcast_oneshot_mask())[0]);
SEQ_printf(m, "tick_broadcast_oneshot_mask: %*pb\n",
cpumask_pr_args(tick_get_broadcast_oneshot_mask()));
#endif
SEQ_printf(m, "\n");
#endif