init_data_structures_once

Name:Initialize the lock_classes[] array elements, the free_lock_classes list* and also the delayed_free structure.

Proto:static void init_data_structures_once(void)

Type:void

Parameter:Nothing

1082

If Value is more likely to compile time(rcu_head_initialized) Then Return

1085

If Values used for system_state. Ordering of the states must not be changed* as code checks for <, <=, >, >= STATE. >= SYSTEM_SCHEDULING Then

1086

The init_rcu_head_on_stack() and destroy_rcu_head_on_stack() calls* are needed for dynamic initialization and destruction of rcu_head* on the stack, and init_rcu_head()/destroy_rcu_head() are needed for* dynamic initialization and destruction of

1087

rcu_head_initialized = true

1090

If ds_initialized Then Return

1093

ds_initialized = true

1095

Initialization list head

1096

Initialization list head

1098

When i < ARRAY_SIZE - get the number of elements in array @arr*@arr: array to be sized(lock_classes) cycle

1099

list_add_tail - add a new entry*@new: new entry to be added*@head: list head to add it before* Insert a new entry before the specified head.* This is useful for implementing queues.

1100

Initialization list head

1101

Initialization list head

**Caller**
Name	Describe
register_lock_class	Register a lock's class in the hash-table, if the class is not present* yet. Otherwise we look it up. We cache the result in the lock object* itself, so actual lookup of the hash should be once per lock object.
lockdep_free_key_range_reg	Used in module
lockdep_free_key_range_imm	Free all lockdep keys in the range [start, start+size). Does not sleep.* Ignores debug_locks. Must only be used by the lockdep selftests.
lockdep_free_key_range
lockdep_reset_lock

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