linux-kernel - [PATCH] rt: shorten posix_cpu_timers/<CPU> kernel thread names

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Message-ID: <20080813184211.GD2240@ghostprotocols.net>
Date:	Wed, 13 Aug 2008 15:42:11 -0300
From:	Arnaldo Carvalho de Melo <acme@...hat.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Clark Williams <williams@...hat.com>,
	Luiz Cláudio Gonçalves <lgoncalv@...hat.com>,
	linux-rt-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] rt: 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@...hat.com>

--- linux-2.6.24.7.orig/kernel/posix-cpu-timers.c	2008-08-12 20:40:58.000000000 -0300
+++ linux-2.6.24.7/kernel/posix-cpu-timers.c	2008-08-12 20:52:27.000000000 -0300
@@ -1473,7 +1473,7 @@ static int posix_cpu_thread_call(struct 
 	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;
--
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