posix-timers: Shorten posix_cpu_timers/<CPU> kernel thread names

Shorten the softirq kernel thread names because they always overflow the
limited comm length, appearing as "posix_cpu_timer" CPU# times.

Done on 2.6.24.7, but probably applicable to later kernels.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

kernel/posix-cpu-timers.c

@@ -1542,7 +1542,7 @@ static int posix_cpu_thread_call(struct notifier_block *nfb,
 	switch (action) {
 	case CPU_UP_PREPARE:
 		p = kthread_create(posix_cpu_timers_thread, hcpu,
-					"posix_cpu_timers/%d",cpu);
+					"posixcputmr/%d",cpu);
 		if (IS_ERR(p))
 			return NOTIFY_BAD;
 		p->flags |= PF_NOFREEZE;