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Date: Tue, 15 Jul 2014 21:10:52 +0200 From: Andreas Gruenbacher <andreas.gruenbacher@...il.com> To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org Cc: Andreas Gruenbacher <andreas.gruenbacher@...il.com> Subject: [PATCH] lockdep: Only ask for /proc/lock_stat output when available When lockdep turns itself off, the following message is logged: Please attach the output of /proc/lock_stat to the bug report Omit this message when CONFIG_LOCK_STAT is off, and /proc/lock_stat doesn't exist. Signed-off-by: Andreas Gruenbacher <andreas.gruenbacher@...il.com> --- kernel/locking/lockdep.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index d24e433..88d0d44 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -384,7 +384,9 @@ static void print_lockdep_off(const char *bug_msg) { printk(KERN_DEBUG "%s\n", bug_msg); printk(KERN_DEBUG "turning off the locking correctness validator.\n"); +#ifdef CONFIG_LOCK_STAT printk(KERN_DEBUG "Please attach the output of /proc/lock_stat to the bug report\n"); +#endif } static int save_trace(struct stack_trace *trace) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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