centos man page for init_rcu_head_on_stack

INIT_RCU_HEAD_ON_STA(9) 					   Driver Basics					   INIT_RCU_HEAD_ON_STA(9)

NAME
       init_rcu_head_on_stack - initialize on-stack rcu_head for debugobjects

SYNOPSIS
       void init_rcu_head_on_stack(struct rcu_head * head);

ARGUMENTS
       head
	   pointer to rcu_head structure to be initialized

DESCRIPTION
       This function informs debugobjects of a new rcu_head structure that has been allocated as an auto variable on the stack. This function is
       not required for rcu_head structures that are statically defined or that are dynamically allocated on the heap. This function has no effect
       for !CONFIG_DEBUG_OBJECTS_RCU_HEAD kernel builds.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   INIT_RCU_HEAD_ON_STA(9)