Provided by:
linux-doc-2.6.15_2.6.15-23.39_all 
NAME
hlist_add_after_rcu - adds the specified element to the specified hlist
SYNOPSIS
void hlist_add_after_rcu (struct hlist_node * prev,
struct hlist_node * n);
ARGUMENTS
prev the existing element to add the new element after.
n the new element to add to the hash list.
DESCRIPTION
The caller must take whatever precautions are necessary (such as
holding appropriate locks) to avoid racing with another list-mutation
primitive, such as hlist_add_head_rcu or hlist_del_rcu, running on this
same list. However, it is perfectly legal to run concurrently with the
_rcu list-traversal primitives, such as hlist_for_each_entry_rcu, used
to prevent memory-consistency problems on Alpha CPUs.
DESCRIPTION
The caller must take whatever precautions are necessary (such as
holding appropriate locks) to avoid racing with another list-mutation
primitive, such as hlist_add_head_rcu or hlist_del_rcu, running on this
same list. However, it is perfectly legal to run concurrently with the
_rcu list-traversal primitives, such as hlist_for_each_entry_rcu, used
to prevent memory-consistency problems on Alpha CPUs.