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Source at commit be977234bfb4a6dca8a39e7c52165e4cd536ad71 created 12 years 9 months ago. By Lars-Peter Clausen, jz4740: Fix compile error | |
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1 | /* |
2 | * lib/debug_locks.c |
3 | * |
4 | * Generic place for common debugging facilities for various locks: |
5 | * spinlocks, rwlocks, mutexes and rwsems. |
6 | * |
7 | * Started by Ingo Molnar: |
8 | * |
9 | * Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> |
10 | */ |
11 | #include <linux/rwsem.h> |
12 | #include <linux/mutex.h> |
13 | #include <linux/module.h> |
14 | #include <linux/spinlock.h> |
15 | #include <linux/debug_locks.h> |
16 | |
17 | /* |
18 | * We want to turn all lock-debugging facilities on/off at once, |
19 | * via a global flag. The reason is that once a single bug has been |
20 | * detected and reported, there might be cascade of followup bugs |
21 | * that would just muddy the log. So we report the first one and |
22 | * shut up after that. |
23 | */ |
24 | int debug_locks = 1; |
25 | EXPORT_SYMBOL_GPL(debug_locks); |
26 | |
27 | /* |
28 | * The locking-testsuite uses <debug_locks_silent> to get a |
29 | * 'silent failure': nothing is printed to the console when |
30 | * a locking bug is detected. |
31 | */ |
32 | int debug_locks_silent; |
33 | |
34 | /* |
35 | * Generic 'turn off all lock debugging' function: |
36 | */ |
37 | int debug_locks_off(void) |
38 | { |
39 | if (__debug_locks_off()) { |
40 | if (!debug_locks_silent) { |
41 | console_verbose(); |
42 | return 1; |
43 | } |
44 | } |
45 | return 0; |
46 | } |
47 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9