Revision 555bdaefd52c386e79f98591810ceb8bab780398 authored by Linus Torvalds on 29 November 2010, 22:10:44 UTC, committed by Linus Torvalds on 29 November 2010, 22:10:44 UTC
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: EDAC: Fix typos in Documentation/edac.txt EDAC, MCE: Fix edac_init_mce_inject error handling EDAC: Remove deprecated kbuild goal definitions
debug_locks.c
/*
* lib/debug_locks.c
*
* Generic place for common debugging facilities for various locks:
* spinlocks, rwlocks, mutexes and rwsems.
*
* Started by Ingo Molnar:
*
* Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
*/
#include <linux/kernel.h>
#include <linux/rwsem.h>
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/debug_locks.h>
/*
* We want to turn all lock-debugging facilities on/off at once,
* via a global flag. The reason is that once a single bug has been
* detected and reported, there might be cascade of followup bugs
* that would just muddy the log. So we report the first one and
* shut up after that.
*/
int debug_locks = 1;
EXPORT_SYMBOL_GPL(debug_locks);
/*
* The locking-testsuite uses <debug_locks_silent> to get a
* 'silent failure': nothing is printed to the console when
* a locking bug is detected.
*/
int debug_locks_silent;
/*
* Generic 'turn off all lock debugging' function:
*/
int debug_locks_off(void)
{
if (__debug_locks_off()) {
if (!debug_locks_silent) {
oops_in_progress = 1;
console_verbose();
return 1;
}
}
return 0;
}
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