1 files changed, 52 insertions, 30 deletions

diff --git a/include/linux/list.h b/include/linux/list.h
index a02642e4710a..88ecfa8f31c3 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -281,16 +281,17 @@ static inline int list_empty(const struct list_head *head)
 }
 
 /**
- * list_empty_careful - tests whether a list is
- * empty _and_ checks that no other CPU might be
- * in the process of still modifying either member
+ * list_empty_careful - tests whether a list is empty and not being modified
+ * @head: the list to test
+ *
+ * Description:
+ * tests whether a list is empty _and_ checks that no other CPU might be
+ * in the process of modifying either member (next or prev)
  *
  * NOTE: using list_empty_careful() without synchronization
  * can only be safe if the only activity that can happen
  * to the list entry is list_del_init(). Eg. it cannot be used
  * if another CPU could re-list_add() it.
- *
- * @head: the list to test.
  */
 static inline int list_empty_careful(const struct list_head *head)
 {
@@ -380,7 +381,7 @@ static inline void list_splice_init(struct list_head *list,
                 pos = pos->prev)
 
 /**
- * list_for_each_safe   -       iterate over a list safe against removal of list entry
+ * list_for_each_safe - iterate over a list safe against removal of list entry
  * @pos:        the &struct list_head to use as a loop counter.
  * @n:          another &struct list_head to use as temporary storage
  * @head:       the head for your list.
@@ -412,21 +413,24 @@ static inline void list_splice_init(struct list_head *list,
              pos = list_entry(pos->member.prev, typeof(*pos), member))
 
 /**
- * list_prepare_entry - prepare a pos entry for use as a start point in
- *                      list_for_each_entry_continue
+ * list_prepare_entry - prepare a pos entry for use in list_for_each_entry_continue
  * @pos:        the type * to use as a start point
  * @head:       the head of the list
  * @member:     the name of the list_struct within the struct.
+ *
+ * Prepares a pos entry for use as a start point in list_for_each_entry_continue.
  */
 #define list_prepare_entry(pos, head, member) \
         ((pos) ? : list_entry(head, typeof(*pos), member))
 
 /**
- * list_for_each_entry_continue -       iterate over list of given type
- *                      continuing after existing point
+ * list_for_each_entry_continue - continue iteration over list of given type
  * @pos:        the type * to use as a loop counter.
  * @head:       the head for your list.
  * @member:     the name of the list_struct within the struct.
+ *
+ * Continue to iterate over list of given type, continuing after
+ * the current position.
  */
 #define list_for_each_entry_continue(pos, head, member)                 \
         for (pos = list_entry(pos->member.next, typeof(*pos), member);  \
@@ -434,11 +438,12 @@ static inline void list_splice_init(struct list_head *list,
              pos = list_entry(pos->member.next, typeof(*pos), member))
 
 /**
- * list_for_each_entry_from -   iterate over list of given type
- *                      continuing from existing point
+ * list_for_each_entry_from - iterate over list of given type from the current point
  * @pos:        the type * to use as a loop counter.
  * @head:       the head for your list.
  * @member:     the name of the list_struct within the struct.
+ *
+ * Iterate over list of given type, continuing from current position.
  */
 #define list_for_each_entry_from(pos, head, member)                     \
         for (; prefetch(pos->member.next), &pos->member != (head);      \
@@ -458,12 +463,14 @@ static inline void list_splice_init(struct list_head *list,
              pos = n, n = list_entry(n->member.next, typeof(*n), member))
 
 /**
- * list_for_each_entry_safe_continue -  iterate over list of given type
- *                      continuing after existing point safe against removal of list entry
+ * list_for_each_entry_safe_continue
  * @pos:        the type * to use as a loop counter.
  * @n:          another type * to use as temporary storage
  * @head:       the head for your list.
  * @member:     the name of the list_struct within the struct.
+ *
+ * Iterate over list of given type, continuing after current point,
+ * safe against removal of list entry.
  */
 #define list_for_each_entry_safe_continue(pos, n, head, member)                 \
         for (pos = list_entry(pos->member.next, typeof(*pos), member),          \
@@ -472,12 +479,14 @@ static inline void list_splice_init(struct list_head *list,
              pos = n, n = list_entry(n->member.next, typeof(*n), member))
 
 /**
- * list_for_each_entry_safe_from - iterate over list of given type
- *                      from existing point safe against removal of list entry
+ * list_for_each_entry_safe_from
  * @pos:        the type * to use as a loop counter.
  * @n:          another type * to use as temporary storage
  * @head:       the head for your list.
  * @member:     the name of the list_struct within the struct.
+ *
+ * Iterate over list of given type from current point, safe against
+ * removal of list entry.
  */
 #define list_for_each_entry_safe_from(pos, n, head, member)                     \
         for (n = list_entry(pos->member.next, typeof(*pos), member);            \
@@ -485,12 +494,14 @@ static inline void list_splice_init(struct list_head *list,
              pos = n, n = list_entry(n->member.next, typeof(*n), member))
 
 /**
- * list_for_each_entry_safe_reverse - iterate backwards over list of given type safe against
- *                                    removal of list entry
+ * list_for_each_entry_safe_reverse
  * @pos:        the type * to use as a loop counter.
  * @n:          another type * to use as temporary storage
  * @head:       the head for your list.
  * @member:     the name of the list_struct within the struct.
+ *
+ * Iterate backwards over list of given type, safe against removal
+ * of list entry.
  */
 #define list_for_each_entry_safe_reverse(pos, n, head, member)          \
         for (pos = list_entry((head)->prev, typeof(*pos), member),      \
@@ -518,12 +529,13 @@ static inline void list_splice_init(struct list_head *list,
                 pos = pos->next)
 
 /**
- * list_for_each_safe_rcu       -       iterate over an rcu-protected list safe
- *                                      against removal of list entry
+ * list_for_each_safe_rcu
  * @pos:        the &struct list_head to use as a loop counter.
  * @n:          another &struct list_head to use as temporary storage
  * @head:       the head for your list.
  *
+ * Iterate over an rcu-protected list, safe against removal of list entry.
+ *
  * This list-traversal primitive may safely run concurrently with
  * the _rcu list-mutation primitives such as list_add_rcu()
  * as long as the traversal is guarded by rcu_read_lock().
@@ -551,11 +563,12 @@ static inline void list_splice_init(struct list_head *list,
 
 
 /**
- * list_for_each_continue_rcu   -       iterate over an rcu-protected list
- *                      continuing after existing point.
+ * list_for_each_continue_rcu
  * @pos:        the &struct list_head to use as a loop counter.
  * @head:       the head for your list.
  *
+ * Iterate over an rcu-protected list, continuing after current point.
+ *
  * This list-traversal primitive may safely run concurrently with
  * the _rcu list-mutation primitives such as list_add_rcu()
  * as long as the traversal is guarded by rcu_read_lock().
@@ -681,11 +694,14 @@ static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
 
 
 /**
- * hlist_add_head_rcu - adds the specified element to the specified hlist,
- * while permitting racing traversals.
+ * hlist_add_head_rcu
  * @n: the element to add to the hash list.
  * @h: the list to add to.
  *
+ * Description:
+ * Adds the specified element to the specified hlist,
+ * while permitting racing traversals.
+ *
  * 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()
@@ -730,11 +746,14 @@ static inline void hlist_add_after(struct hlist_node *n,
 }
 
 /**
- * hlist_add_before_rcu - adds the specified element to the specified hlist
- * before the specified node while permitting racing traversals.
+ * hlist_add_before_rcu
  * @n: the new element to add to the hash list.
  * @next: the existing element to add the new element before.
  *
+ * Description:
+ * Adds the specified element to the specified hlist
+ * before the specified node while permitting racing traversals.
+ *
  * 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()
@@ -755,11 +774,14 @@ static inline void hlist_add_before_rcu(struct hlist_node *n,
 }
 
 /**
- * hlist_add_after_rcu - adds the specified element to the specified hlist
- * after the specified node while permitting racing traversals.
+ * hlist_add_after_rcu
  * @prev: the existing element to add the new element after.
  * @n: the new element to add to the hash list.
  *
+ * Description:
+ * Adds the specified element to the specified hlist
+ * after the specified node while permitting racing traversals.
+ *
  * 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()
@@ -804,7 +826,7 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
              pos = pos->next)
 
 /**
- * hlist_for_each_entry_continue - iterate over a hlist continuing after existing point
+ * hlist_for_each_entry_continue - iterate over a hlist continuing after current point
  * @tpos:       the type * to use as a loop counter.
  * @pos:        the &struct hlist_node to use as a loop counter.
  * @member:     the name of the hlist_node within the struct.
@@ -816,7 +838,7 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
              pos = pos->next)
 
 /**
- * hlist_for_each_entry_from - iterate over a hlist continuing from existing point
+ * hlist_for_each_entry_from - iterate over a hlist continuing from current point
  * @tpos:       the type * to use as a loop counter.
  * @pos:        the &struct hlist_node to use as a loop counter.
  * @member:     the name of the hlist_node within the struct.