Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit acf59377 authored by Andreas Gruenbacher's avatar Andreas Gruenbacher Committed by Ingo Molnar
Browse files

locking/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: default avatarAndreas Gruenbacher <andreas.gruenbacher@gmail.com>
Signed-off-by: default avatarPeter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1405451452-3824-1-git-send-email-andreas.gruenbacher@gmail.com


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent b5e4111f

kernel/locking/lockdep.c

+2 −0
Original line number Diff line number Diff line
@@ -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)