rcu_gp_in_progress

Name:Return true if an RCU grace period is in progress. The READ_ONCE()s* permit this function to be invoked without holding the root rcu_node* structure's ->lock, but of course results can be subject to change.

Proto:static int rcu_gp_in_progress(void)

Type:int

Parameter:Nothing

**Caller**
Name	Describe
rcu_start_this_gp	_start_this_gp - Request the start of a particular grace period*@rnp_start: The leaf node of the CPU from which to start
rcu_gp_init	Initialize a new grace period. Return false if no grace period required.
rcu_report_qs_rsp	Report a full set of quiescent states to the rcu_state data structure
rcu_core	Perform RCU core processing work for the current CPU.
__call_rcu_core	Handle any core-RCU processing required by a call_rcu() invocation.
rcu_pending

Function report