Commit 358e9541 authored by Dan Aloni's avatar Dan Aloni Committed by Linus Torvalds

[PATCH] 2.5.21 - list.h cleanup

This patch is against 2.5.21 vanilla.

 + replace __inline__ with inline.
 + use list_t intead of struct list_head (no bytes were harmed, bla.. bla..)
 + add the new list_move and list_move_tail mutators as inline functions.
parent ccea6989
...@@ -24,7 +24,7 @@ typedef struct list_head list_t; ...@@ -24,7 +24,7 @@ typedef struct list_head list_t;
#define LIST_HEAD_INIT(name) { &(name), &(name) } #define LIST_HEAD_INIT(name) { &(name), &(name) }
#define LIST_HEAD(name) \ #define LIST_HEAD(name) \
struct list_head name = LIST_HEAD_INIT(name) list_t name = LIST_HEAD_INIT(name)
#define INIT_LIST_HEAD(ptr) do { \ #define INIT_LIST_HEAD(ptr) do { \
(ptr)->next = (ptr); (ptr)->prev = (ptr); \ (ptr)->next = (ptr); (ptr)->prev = (ptr); \
...@@ -36,9 +36,7 @@ typedef struct list_head list_t; ...@@ -36,9 +36,7 @@ typedef struct list_head list_t;
* This is only for internal list manipulation where we know * This is only for internal list manipulation where we know
* the prev/next entries already! * the prev/next entries already!
*/ */
static __inline__ void __list_add(struct list_head * new, static inline void __list_add(list_t *new, list_t *prev, list_t *next)
struct list_head * prev,
struct list_head * next)
{ {
next->prev = new; next->prev = new;
new->next = next; new->next = next;
...@@ -54,7 +52,7 @@ static __inline__ void __list_add(struct list_head * new, ...@@ -54,7 +52,7 @@ static __inline__ void __list_add(struct list_head * new,
* Insert a new entry after the specified head. * Insert a new entry after the specified head.
* This is good for implementing stacks. * This is good for implementing stacks.
*/ */
static __inline__ void list_add(struct list_head *new, struct list_head *head) static inline void list_add(list_t *new, list_t *head)
{ {
__list_add(new, head, head->next); __list_add(new, head, head->next);
} }
...@@ -67,7 +65,7 @@ static __inline__ void list_add(struct list_head *new, struct list_head *head) ...@@ -67,7 +65,7 @@ static __inline__ void list_add(struct list_head *new, struct list_head *head)
* Insert a new entry before the specified head. * Insert a new entry before the specified head.
* This is useful for implementing queues. * This is useful for implementing queues.
*/ */
static __inline__ void list_add_tail(struct list_head *new, struct list_head *head) static inline void list_add_tail(list_t *new, list_t *head)
{ {
__list_add(new, head->prev, head); __list_add(new, head->prev, head);
} }
...@@ -79,8 +77,7 @@ static __inline__ void list_add_tail(struct list_head *new, struct list_head *he ...@@ -79,8 +77,7 @@ static __inline__ void list_add_tail(struct list_head *new, struct list_head *he
* This is only for internal list manipulation where we know * This is only for internal list manipulation where we know
* the prev/next entries already! * the prev/next entries already!
*/ */
static __inline__ void __list_del(struct list_head * prev, static inline void __list_del(list_t * prev, list_t * next)
struct list_head * next)
{ {
next->prev = prev; next->prev = prev;
prev->next = next; prev->next = next;
...@@ -91,7 +88,7 @@ static __inline__ void __list_del(struct list_head * prev, ...@@ -91,7 +88,7 @@ static __inline__ void __list_del(struct list_head * prev,
* @entry: the element to delete from the list. * @entry: the element to delete from the list.
* Note: list_empty on entry does not return true after this, the entry is in an undefined state. * Note: list_empty on entry does not return true after this, the entry is in an undefined state.
*/ */
static __inline__ void list_del(struct list_head *entry) static inline void list_del(list_t *entry)
{ {
__list_del(entry->prev, entry->next); __list_del(entry->prev, entry->next);
entry->next = (void *) 0; entry->next = (void *) 0;
...@@ -102,17 +99,39 @@ static __inline__ void list_del(struct list_head *entry) ...@@ -102,17 +99,39 @@ static __inline__ void list_del(struct list_head *entry)
* list_del_init - deletes entry from list and reinitialize it. * list_del_init - deletes entry from list and reinitialize it.
* @entry: the element to delete from the list. * @entry: the element to delete from the list.
*/ */
static __inline__ void list_del_init(struct list_head *entry) static inline void list_del_init(list_t *entry)
{ {
__list_del(entry->prev, entry->next); __list_del(entry->prev, entry->next);
INIT_LIST_HEAD(entry); INIT_LIST_HEAD(entry);
} }
/**
* list_move - delete from one list and add as another's head
* @list: the entry to move
* @head: the head that will precede our entry
*/
static inline void list_move(list_t *list, list_t *head)
{
__list_del(list->prev, list->next);
list_add(list, head);
}
/**
* list_move_tail - delete from one list and add as another's tail
* @list: the entry to move
* @head: the head that will follow our entry
*/
static inline void list_move_tail(list_t *list, list_t *head)
{
__list_del(list->prev, list->next);
list_add_tail(list, head);
}
/** /**
* list_empty - tests whether a list is empty * list_empty - tests whether a list is empty
* @head: the list to test. * @head: the list to test.
*/ */
static __inline__ int list_empty(struct list_head *head) static inline int list_empty(list_t *head)
{ {
return head->next == head; return head->next == head;
} }
...@@ -122,13 +141,13 @@ static __inline__ int list_empty(struct list_head *head) ...@@ -122,13 +141,13 @@ static __inline__ int list_empty(struct list_head *head)
* @list: the new list to add. * @list: the new list to add.
* @head: the place to add it in the first list. * @head: the place to add it in the first list.
*/ */
static __inline__ void list_splice(struct list_head *list, struct list_head *head) static inline void list_splice(list_t *list, list_t *head)
{ {
struct list_head *first = list->next; list_t *first = list->next;
if (first != list) { if (first != list) {
struct list_head *last = list->prev; list_t *last = list->prev;
struct list_head *at = head->next; list_t *at = head->next;
first->prev = head; first->prev = head;
head->next = first; head->next = first;
...@@ -140,7 +159,7 @@ static __inline__ void list_splice(struct list_head *list, struct list_head *hea ...@@ -140,7 +159,7 @@ static __inline__ void list_splice(struct list_head *list, struct list_head *hea
/** /**
* list_entry - get the struct for this entry * list_entry - get the struct for this entry
* @ptr: the &struct list_head pointer. * @ptr: the &list_t pointer.
* @type: the type of the struct this is embedded in. * @type: the type of the struct this is embedded in.
* @member: the name of the list_struct within the struct. * @member: the name of the list_struct within the struct.
*/ */
...@@ -149,7 +168,7 @@ static __inline__ void list_splice(struct list_head *list, struct list_head *hea ...@@ -149,7 +168,7 @@ static __inline__ void list_splice(struct list_head *list, struct list_head *hea
/** /**
* list_for_each - iterate over a list * list_for_each - iterate over a list
* @pos: the &struct list_head to use as a loop counter. * @pos: the &list_t to use as a loop counter.
* @head: the head for your list. * @head: the head for your list.
*/ */
#define list_for_each(pos, head) \ #define list_for_each(pos, head) \
...@@ -157,7 +176,7 @@ static __inline__ void list_splice(struct list_head *list, struct list_head *hea ...@@ -157,7 +176,7 @@ static __inline__ void list_splice(struct list_head *list, struct list_head *hea
pos = pos->next, prefetch(pos->next)) pos = pos->next, prefetch(pos->next))
/** /**
* list_for_each_prev - iterate over a list backwards * list_for_each_prev - iterate over a list backwards
* @pos: the &struct list_head to use as a loop counter. * @pos: the &list_t to use as a loop counter.
* @head: the head for your list. * @head: the head for your list.
*/ */
#define list_for_each_prev(pos, head) \ #define list_for_each_prev(pos, head) \
...@@ -166,8 +185,8 @@ static __inline__ void list_splice(struct list_head *list, struct list_head *hea ...@@ -166,8 +185,8 @@ static __inline__ void list_splice(struct list_head *list, struct list_head *hea
/** /**
* 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. * @pos: the &list_t to use as a loop counter.
* @n: another &struct list_head to use as temporary storage * @n: another &list_t to use as temporary storage
* @head: the head for your list. * @head: the head for your list.
*/ */
#define list_for_each_safe(pos, n, head) \ #define list_for_each_safe(pos, n, head) \
......
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