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[PATCH] lockdep: improve lockdep_reset() 

Clear all the chains during lockdep_reset().  This fixes some locking-selftest
false positives i saw on -rt.  (never saw those on mainline though, but it
could happen.)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-12-13 00:34:40 -08:00 committed by Linus Torvalds
parent 81fc685a89
commit 23d95a03d6
1 changed files with 3 additions and 0 deletions
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3
kernel/lockdep.c
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@ -2437,6 +2437,7 @@ EXPORT_SYMBOL_GPL(lock_release);
void lockdep_reset(void)
{
unsigned long flags;
int i;
raw_local_irq_save(flags);
current->curr_chain_key = 0;
@ -2447,6 +2448,8 @@ void lockdep_reset(void)
nr_softirq_chains = 0;
nr_process_chains = 0;
debug_locks = 1;
for (i = 0; i < CHAINHASH_SIZE; i++)
INIT_LIST_HEAD(chainhash_table + i);
raw_local_irq_restore(flags);
}