perf lock: Fix lock name length check for printing

It has 20 character spaces for name so lock names shorter than 20
should be printed without ellipsis.

Before:
 # perf lock report
                Name   acquired  contended   avg wait (ns) total wait (ns)   max wait (ns)   min wait (ns)

       rcu_read_lock     251225          0               0               0               0               0
 &(ei->i_block_re...       8731          0               0               0               0               0
 &sb->s_type->i_l...       8731          0               0               0               0               0
 hrtimer_bases.lo...       5261          0               0               0               0               0
 hrtimer_bases.lo...       2626          0               0               0               0               0
 hrtimer_bases.lo...       1953          0               0               0               0               0
 hrtimer_bases.lo...       1382          0               0               0               0               0
 cpu_hotplug_lock...       1350          0               0               0               0               0

After:
 # perf lock report
                Name   acquired  contended   avg wait (ns) total wait (ns)   max wait (ns)   min wait (ns)

       rcu_read_lock     251225          0               0               0               0               0
 &(ei->i_block_re...       8731          0               0               0               0               0
 &sb->s_type->i_l...       8731          0               0               0               0               0
  hrtimer_bases.lock       5261          0               0               0               0               0
  hrtimer_bases.lock       2626          0               0               0               0               0
  hrtimer_bases.lock       1953          0               0               0               0               0
  hrtimer_bases.lock       1382          0               0               0               0               0
    cpu_hotplug_lock       1350          0               0               0               0               0

Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
1 file changed