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Diffstat (limited to 'kernel/locking/lockdep.c')
-rw-r--r--kernel/locking/lockdep.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index bc1efc12a8c5..b7d9c28ecf3b 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -359,6 +359,13 @@ static inline u64 iterate_chain_key(u64 key, u32 idx)
return k0 | (u64)k1 << 32;
}
+void lockdep_init_task(struct task_struct *task)
+{
+ task->lockdep_depth = 0; /* no locks held yet */
+ task->curr_chain_key = 0;
+ task->lockdep_recursion = 0;
+}
+
void lockdep_off(void)
{
current->lockdep_recursion++;
@@ -4589,9 +4596,7 @@ void lockdep_reset(void)
int i;
raw_local_irq_save(flags);
- current->curr_chain_key = 0;
- current->lockdep_depth = 0;
- current->lockdep_recursion = 0;
+ lockdep_init_task(current);
memset(current->held_locks, 0, MAX_LOCK_DEPTH*sizeof(struct held_lock));
nr_hardirq_chains = 0;
nr_softirq_chains = 0;