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Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

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* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  lockdep: continue lock debugging despite some taints
  lockdep: warn about lockdep disabling after kernel taint
This commit is contained in:
Linus Torvalds
2009-04-13 11:30:26 -07:00
parent 01599fca67 574bbe7820
commit bf20753c0c
3 changed files with 18 additions and 3 deletions
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kernel/panic.c
+10 -2
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@@ -213,8 +213,16 @@ unsigned long get_taint(void)
void add_taint(unsigned flag)
{
/* can't trust the integrity of the kernel anymore: */
debug_locks = 0;
/*
* Can't trust the integrity of the kernel anymore.
* We don't call directly debug_locks_off() because the issue
* is not necessarily serious enough to set oops_in_progress to 1
* Also we want to keep up lockdep for staging development and
* post-warning case.
*/
if (flag != TAINT_CRAP && flag != TAINT_WARN && __debug_locks_off())
printk(KERN_WARNING "Disabling lockdep due to kernel taint\n");
set_bit(flag, &tainted_mask);
}
EXPORT_SYMBOL(add_taint);