| * 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/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 |
| * The locking-testsuite uses <debug_locks_silent> to get a |
| * 'silent failure': nothing is printed to the console when |
| * a locking bug is detected. |
| * Generic 'turn off all lock debugging' function: |
| int debug_locks_off(void) |
| if (xchg(&debug_locks, 0)) { |
| if (!debug_locks_silent) { |