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authorOleg Nesterov <oleg@redhat.com>2014-01-20 19:20:13 +0100
committerIngo Molnar <mingo@kernel.org>2014-02-09 21:18:59 +0100
commit34d0ed5ea7a72d5961552fb1758a94f0d3f8f3dc (patch)
tree71bb8a7c24ce1cd76a99586f119fba3f955f4c1e /kernel/locking/lockdep.c
parent1b5ff816cab708ba44c7d7b56b613516269eb577 (diff)
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lockdep: Change mark_held_locks() to check hlock->check instead of lockdep_no_validate
The __lockdep_no_validate check in mark_held_locks() adds the subtle and (afaics) unnecessary difference between no-validate and check==0. And this looks even more inconsistent because __lock_acquire() skips mark_irqflags()->mark_lock() if !check. Change mark_held_locks() to check hlock->check instead. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Dave Jones <davej@redhat.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20140120182013.GA26505@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/locking/lockdep.c')
-rw-r--r--kernel/locking/lockdep.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index f7eba92cb97c..bf0c6b0dd9c5 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -2517,7 +2517,7 @@ mark_held_locks(struct task_struct *curr, enum mark_type mark)
BUG_ON(usage_bit >= LOCK_USAGE_STATES);
- if (hlock_class(hlock)->key == __lockdep_no_validate__.subkeys)
+ if (!hlock->check)
continue;
if (!mark_lock(curr, hlock, usage_bit))