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[LIST]: Add docbook header comments for hlist_add_{before,after}_rcu() 

Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Paul E. McKenney 2005-08-25 16:08:37 -07:00 committed by David S. Miller
parent 57bf1451ac
commit cf4ef01440
1 changed files with 30 additions and 0 deletions
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30
include/linux/list.h
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@ -634,6 +634,21 @@ static inline void hlist_add_after(struct hlist_node *n,
next->next->pprev = &next->next;
}
/**
* hlist_add_before_rcu - adds the specified element to the specified hlist
* before the specified node while permitting racing traversals.
* @n: the new element to add to the hash list.
* @next: the existing element to add the new element before.
*
* 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_rcu(), used to prevent memory-consistency
* problems on Alpha CPUs.
*/
static inline void hlist_add_before_rcu(struct hlist_node *n,
struct hlist_node *next)
{
@ -644,6 +659,21 @@ static inline void hlist_add_before_rcu(struct hlist_node *n,
*(n->pprev) = n;
}
/**
* hlist_add_after_rcu - adds the specified element to the specified hlist
* after the specified node while permitting racing traversals.
* @prev: the existing element to add the new element after.
* @n: the new element to add to the hash list.
*
* 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_rcu(), used to prevent memory-consistency
* problems on Alpha CPUs.
*/
static inline void hlist_add_after_rcu(struct hlist_node *prev,
struct hlist_node *n)
{