+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License version 2 for more details. A copy is
+ * included in the COPYING file that accompanied this code.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * GPL HEADER END
+ */
+
#ifndef __LIBCFS_LIST_H__
#define __LIBCFS_LIST_H__
#include <linux/list.h>
-#define CFS_LIST_HEAD_INIT(n) LIST_HEAD_INIT(n)
-#define CFS_LIST_HEAD(n) LIST_HEAD(n)
-#define CFS_INIT_LIST_HEAD(p) INIT_LIST_HEAD(p)
+typedef struct list_head cfs_list_t;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-#define CFS_HLIST_HEAD_INIT HLIST_HEAD_INIT
-#define CFS_HLIST_HEAD(n) HLIST_HEAD(n)
-#define CFS_INIT_HLIST_HEAD(p) INIT_HLIST_HEAD(p)
-#define CFS_INIT_HLIST_NODE(p) INIT_HLIST_NODE(p)
-#endif
+#define __cfs_list_add(new, prev, next) __list_add(new, prev, next)
+#define cfs_list_add(new, head) list_add(new, head)
+
+#define cfs_list_add_tail(new, head) list_add_tail(new, head)
+
+#define __cfs_list_del(prev, next) __list_del(prev, next)
+#define cfs_list_del(entry) list_del(entry)
+#define cfs_list_del_init(entry) list_del_init(entry)
+
+#define cfs_list_move(list, head) list_move(list, head)
+#define cfs_list_move_tail(list, head) list_move_tail(list, head)
+
+#define cfs_list_empty(head) list_empty(head)
+#define cfs_list_empty_careful(head) list_empty_careful(head)
+
+#define __cfs_list_splice(list, head) __list_splice(list, head)
+#define cfs_list_splice(list, head) list_splice(list, head)
+
+#define cfs_list_splice_init(list, head) list_splice_init(list, head)
+
+#define cfs_list_entry(ptr, type, member) list_entry(ptr, type, member)
+#define cfs_list_for_each(pos, head) list_for_each(pos, head)
+#define cfs_list_for_each_safe(pos, n, head) list_for_each_safe(pos, n, head)
+#define cfs_list_for_each_prev(pos, head) list_for_each_prev(pos, head)
+#define cfs_list_for_each_entry(pos, head, member) \
+ list_for_each_entry(pos, head, member)
+#define cfs_list_for_each_entry_reverse(pos, head, member) \
+ list_for_each_entry_reverse(pos, head, member)
+#define cfs_list_for_each_entry_safe_reverse(pos, n, head, member) \
+ list_for_each_entry_safe_reverse(pos, n, head, member)
+#define cfs_list_for_each_entry_safe(pos, n, head, member) \
+ list_for_each_entry_safe(pos, n, head, member)
+#ifdef list_for_each_entry_safe_from
+#define cfs_list_for_each_entry_safe_from(pos, n, head, member) \
+ list_for_each_entry_safe_from(pos, n, head, member)
+#endif /* list_for_each_entry_safe_from */
+#define cfs_list_for_each_entry_continue(pos, head, member) \
+ list_for_each_entry_continue(pos, head, member)
+
+#define CFS_LIST_HEAD_INIT(n) LIST_HEAD_INIT(n)
+#define CFS_LIST_HEAD(n) LIST_HEAD(n)
+#define CFS_INIT_LIST_HEAD(p) INIT_LIST_HEAD(p)
+
+typedef struct hlist_head cfs_hlist_head_t;
+typedef struct hlist_node cfs_hlist_node_t;
+
+#define cfs_hlist_unhashed(h) hlist_unhashed(h)
+
+#define cfs_hlist_empty(h) hlist_empty(h)
+
+#define __cfs_hlist_del(n) __hlist_del(n)
+#define cfs_hlist_del(n) hlist_del(n)
+#define cfs_hlist_del_init(n) hlist_del_init(n)
+
+#define cfs_hlist_add_head(n, next) hlist_add_head(n, next)
+#define cfs_hlist_add_before(n, next) hlist_add_before(n, next)
+#define cfs_hlist_add_after(n, next) hlist_add_after(n, next)
+
+#define cfs_hlist_entry(ptr, type, member) hlist_entry(ptr, type, member)
+#define cfs_hlist_for_each(pos, head) hlist_for_each(pos, head)
+#define cfs_hlist_for_each_safe(pos, n, head) \
+ hlist_for_each_safe(pos, n, head)
+#define cfs_hlist_for_each_entry(tpos, pos, head, member) \
+ hlist_for_each_entry(tpos, pos, head, member)
+#define cfs_hlist_for_each_entry_continue(tpos, pos, member) \
+ hlist_for_each_entry_continue(tpos, pos, member)
+#define cfs_hlist_for_each_entry_from(tpos, pos, member) \
+ hlist_for_each_entry_from(tpos, pos, member)
+#define cfs_hlist_for_each_entry_safe(tpos, pos, n, head, member) \
+ hlist_for_each_entry_safe(tpos, pos, n, head, member)
+
+#define CFS_HLIST_HEAD_INIT HLIST_HEAD_INIT
+#define CFS_HLIST_HEAD(n) HLIST_HEAD(n)
+#define CFS_INIT_HLIST_HEAD(p) INIT_HLIST_HEAD(p)
+#define CFS_INIT_HLIST_NODE(p) INIT_HLIST_NODE(p)
#else /* !defined (__linux__) || !defined(__KERNEL__) */
* using the generic single-entry routines.
*/
-#ifndef __WINNT__
#define prefetch(a) ((void)a)
-#else
-#define prefetch(a) ((void *)a)
-#endif
-struct list_head {
- struct list_head *next, *prev;
+struct cfs_list_head {
+ struct cfs_list_head *next, *prev;
};
-typedef struct list_head list_t;
+typedef struct cfs_list_head cfs_list_t;
#define CFS_LIST_HEAD_INIT(name) { &(name), &(name) }
#define CFS_LIST_HEAD(name) \
- struct list_head name = CFS_LIST_HEAD_INIT(name)
+ cfs_list_t name = CFS_LIST_HEAD_INIT(name)
#define CFS_INIT_LIST_HEAD(ptr) do { \
(ptr)->next = (ptr); (ptr)->prev = (ptr); \
} while (0)
-/*
+/**
* Insert a new entry between two known consecutive entries.
*
* This is only for internal list manipulation where we know
* the prev/next entries already!
*/
-static inline void __list_add(struct list_head * new,
- struct list_head * prev,
- struct list_head * next)
+static inline void __cfs_list_add(cfs_list_t * new,
+ cfs_list_t * prev,
+ cfs_list_t * next)
{
next->prev = new;
new->next = next;
}
/**
- * list_add - add a new entry
- * @new: new entry to be added
- * @head: list head to add it after
+ * Insert an entry at the start of a list.
+ * \param new new entry to be inserted
+ * \param head list to add it to
*
* Insert a new entry after the specified head.
* This is good for implementing stacks.
*/
-static inline void list_add(struct list_head *new, struct list_head *head)
+static inline void cfs_list_add(cfs_list_t *new,
+ cfs_list_t *head)
{
- __list_add(new, head, head->next);
+ __cfs_list_add(new, head, head->next);
}
/**
- * list_add_tail - add a new entry
- * @new: new entry to be added
- * @head: list head to add it before
+ * Insert an entry at the end of a list.
+ * \param new new entry to be inserted
+ * \param head list to add it to
*
* Insert a new entry before the specified head.
* This is useful for implementing queues.
*/
-static inline void list_add_tail(struct list_head *new, struct list_head *head)
+static inline void cfs_list_add_tail(cfs_list_t *new,
+ cfs_list_t *head)
{
- __list_add(new, head->prev, head);
+ __cfs_list_add(new, head->prev, head);
}
/*
* This is only for internal list manipulation where we know
* the prev/next entries already!
*/
-static inline void __list_del(struct list_head * prev, struct list_head * next)
+static inline void __cfs_list_del(cfs_list_t *prev,
+ cfs_list_t *next)
{
next->prev = prev;
prev->next = next;
}
/**
- * list_del - deletes entry from 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.
+ * Remove an entry from the list it is currently in.
+ * \param entry the entry to remove
+ * Note: list_empty(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 cfs_list_del(cfs_list_t *entry)
{
- __list_del(entry->prev, entry->next);
+ __cfs_list_del(entry->prev, entry->next);
}
/**
- * list_del_init - deletes entry from list and reinitialize it.
- * @entry: the element to delete from the list.
+ * Remove an entry from the list it is currently in and reinitialize it.
+ * \param entry the entry to remove.
*/
-static inline void list_del_init(struct list_head *entry)
+static inline void cfs_list_del_init(cfs_list_t *entry)
{
- __list_del(entry->prev, entry->next);
+ __cfs_list_del(entry->prev, entry->next);
CFS_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
- *
- * This is not safe to use if @list is already on the same list as @head.
+ * Remove an entry from the list it is currently in and insert it at the start
+ * of another list.
+ * \param list the entry to move
+ * \param head the list to move it to
*/
-static inline void list_move(struct list_head *list, struct list_head *head)
+static inline void cfs_list_move(cfs_list_t *list,
+ cfs_list_t *head)
{
- __list_del(list->prev, list->next);
- list_add(list, head);
+ __cfs_list_del(list->prev, list->next);
+ cfs_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
- *
- * This is not safe to use if @list is already on the same list as @head.
+ * Remove an entry from the list it is currently in and insert it at the end of
+ * another list.
+ * \param list the entry to move
+ * \param head the list to move it to
*/
-static inline void list_move_tail(struct list_head *list,
- struct list_head *head)
+static inline void cfs_list_move_tail(cfs_list_t *list,
+ cfs_list_t *head)
{
- __list_del(list->prev, list->next);
- list_add_tail(list, head);
+ __cfs_list_del(list->prev, list->next);
+ cfs_list_add_tail(list, head);
}
/**
- * list_empty - tests whether a list is empty
- * @head: the list to test.
+ * Test whether a list is empty
+ * \param head the list to test.
*/
-static inline int list_empty(struct list_head *head)
+static inline int cfs_list_empty(cfs_list_t *head)
{
return head->next == head;
}
-static inline void __list_splice(struct list_head *list,
- struct list_head *head)
+/**
+ * Test whether a list is empty and not being modified
+ * \param head the list to test
+ *
+ * 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 cfs_list_empty_careful() without synchronization
+ * can only be safe if the only activity that can happen
+ * to the list entry is cfs_list_del_init(). Eg. it cannot be used
+ * if another CPU could re-list_add() it.
+ */
+static inline int cfs_list_empty_careful(const cfs_list_t *head)
+{
+ cfs_list_t *next = head->next;
+ return (next == head) && (next == head->prev);
+}
+
+static inline void __cfs_list_splice(cfs_list_t *list,
+ cfs_list_t *head)
{
- struct list_head *first = list->next;
- struct list_head *last = list->prev;
- struct list_head *at = head->next;
+ cfs_list_t *first = list->next;
+ cfs_list_t *last = list->prev;
+ cfs_list_t *at = head->next;
first->prev = head;
head->next = first;
}
/**
- * list_splice - join two lists
- * @list: the new list to add.
- * @head: the place to add it in the first list.
+ * Join two lists
+ * \param list the new list to add.
+ * \param head the place to add it in the first list.
+ *
+ * The contents of \a list are added at the start of \a head. \a list is in an
+ * undefined state on return.
*/
-static inline void list_splice(struct list_head *list, struct list_head *head)
+static inline void cfs_list_splice(cfs_list_t *list,
+ cfs_list_t *head)
{
- if (!list_empty(list))
- __list_splice(list, head);
+ if (!cfs_list_empty(list))
+ __cfs_list_splice(list, head);
}
/**
- * list_splice_init - join two lists and reinitialise the emptied list.
- * @list: the new list to add.
- * @head: the place to add it in the first list.
+ * Join two lists and reinitialise the emptied list.
+ * \param list the new list to add.
+ * \param head the place to add it in the first list.
*
- * The list at @list is reinitialised
+ * The contents of \a list are added at the start of \a head. \a list is empty
+ * on return.
*/
-static inline void list_splice_init(struct list_head *list,
- struct list_head *head)
+static inline void cfs_list_splice_init(cfs_list_t *list,
+ cfs_list_t *head)
{
- if (!list_empty(list)) {
- __list_splice(list, head);
+ if (!cfs_list_empty(list)) {
+ __cfs_list_splice(list, head);
CFS_INIT_LIST_HEAD(list);
}
}
/**
- * list_entry - get the struct for this entry
- * @ptr: the &struct list_head pointer.
- * @type: the type of the struct this is embedded in.
- * @member: the name of the list_struct within the struct.
+ * Get the container of a list
+ * \param ptr the embedded list.
+ * \param type the type of the struct this is embedded in.
+ * \param member the member name of the list within the struct.
*/
-#define list_entry(ptr, type, member) \
- ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
+#define cfs_list_entry(ptr, type, member) \
+ ((type *)((char *)(ptr)-(char *)(&((type *)0)->member)))
/**
- * list_for_each - iterate over a list
- * @pos: the &struct list_head to use as a loop counter.
- * @head: the head for your list.
+ * Iterate over a list
+ * \param pos the iterator
+ * \param head the list to iterate over
+ *
+ * Behaviour is undefined if \a pos is removed from the list in the body of the
+ * loop.
*/
-#define list_for_each(pos, head) \
+#define cfs_list_for_each(pos, head) \
for (pos = (head)->next, prefetch(pos->next); pos != (head); \
pos = pos->next, prefetch(pos->next))
/**
- * 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.
+ * Iterate over a list safely
+ * \param pos the iterator
+ * \param n temporary storage
+ * \param head the list to iterate over
+ *
+ * This is safe to use if \a pos could be removed from the list in the body of
+ * the loop.
*/
-#define list_for_each_safe(pos, n, head) \
+#define cfs_list_for_each_safe(pos, n, head) \
for (pos = (head)->next, n = pos->next; pos != (head); \
pos = n, n = pos->next)
-/*
+/**
+ * Iterate over a list continuing after existing point
+ * \param pos the type * to use as a loop counter
+ * \param head the list head
+ * \param member the name of the list_struct within the struct
+ */
+#define cfs_list_for_each_entry_continue(pos, head, member) \
+ for (pos = cfs_list_entry(pos->member.next, typeof(*pos), member); \
+ prefetch(pos->member.next), &pos->member != (head); \
+ pos = cfs_list_entry(pos->member.next, typeof(*pos), member))
+
+/**
+ * \defgroup hlist Hash List
* Double linked lists with a single pointer list head.
- * Mostly useful for hash tables where the two pointer list head is
- * too wasteful.
- * You lose the ability to access the tail in O(1).
+ * Mostly useful for hash tables where the two pointer list head is too
+ * wasteful. You lose the ability to access the tail in O(1).
+ * @{
*/
-struct hlist_head {
- struct hlist_node *first;
-};
+typedef struct cfs_hlist_node {
+ struct cfs_hlist_node *next, **pprev;
+} cfs_hlist_node_t;
-struct hlist_node {
- struct hlist_node *next, **pprev;
-};
+typedef struct cfs_hlist_head {
+ cfs_hlist_node_t *first;
+} cfs_hlist_head_t;
+
+/* @} */
/*
* "NULL" might not be defined at this point
#define NULL_P ((void *)0)
#endif
-#define CFS_HLIST_HEAD_INIT { .first = NULL_P }
-#define CFS_HLIST_HEAD(name) struct hlist_head name = { .first = NULL_P }
+/**
+ * \addtogroup hlist
+ * @{
+ */
+
+#define CFS_HLIST_HEAD_INIT { NULL_P }
+#define CFS_HLIST_HEAD(name) cfs_hlist_head_t name = { NULL_P }
#define CFS_INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL_P)
#define CFS_INIT_HLIST_NODE(ptr) ((ptr)->next = NULL_P, (ptr)->pprev = NULL_P)
-#define HLIST_HEAD_INIT CFS_HLIST_HEAD_INIT
-#define HLIST_HEAD(n) CFS_HLIST_HEAD(n)
-#define INIT_HLIST_HEAD(p) CFS_INIT_HLIST_HEAD(p)
-#define INIT_HLIST_NODE(p) CFS_INIT_HLIST_NODE(p)
-
-static inline int hlist_unhashed(const struct hlist_node *h)
+static inline int cfs_hlist_unhashed(const cfs_hlist_node_t *h)
{
return !h->pprev;
}
-static inline int hlist_empty(const struct hlist_head *h)
+static inline int cfs_hlist_empty(const cfs_hlist_head_t *h)
{
return !h->first;
}
-static inline void __hlist_del(struct hlist_node *n)
+static inline void __cfs_hlist_del(cfs_hlist_node_t *n)
{
- struct hlist_node *next = n->next;
- struct hlist_node **pprev = n->pprev;
+ cfs_hlist_node_t *next = n->next;
+ cfs_hlist_node_t **pprev = n->pprev;
*pprev = next;
if (next)
next->pprev = pprev;
}
-static inline void hlist_del(struct hlist_node *n)
+static inline void cfs_hlist_del(cfs_hlist_node_t *n)
{
- __hlist_del(n);
+ __cfs_hlist_del(n);
}
-static inline void hlist_del_init(struct hlist_node *n)
+static inline void cfs_hlist_del_init(cfs_hlist_node_t *n)
{
if (n->pprev) {
- __hlist_del(n);
- INIT_HLIST_NODE(n);
+ __cfs_hlist_del(n);
+ CFS_INIT_HLIST_NODE(n);
}
}
-static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
+static inline void cfs_hlist_add_head(cfs_hlist_node_t *n,
+ cfs_hlist_head_t *h)
{
- struct hlist_node *first = h->first;
+ cfs_hlist_node_t *first = h->first;
n->next = first;
if (first)
first->pprev = &n->next;
}
/* next must be != NULL */
-static inline void hlist_add_before(struct hlist_node *n,
- struct hlist_node *next)
+static inline void cfs_hlist_add_before(cfs_hlist_node_t *n,
+ cfs_hlist_node_t *next)
{
n->pprev = next->pprev;
n->next = next;
*(n->pprev) = n;
}
-static inline void hlist_add_after(struct hlist_node *n,
- struct hlist_node *next)
+static inline void cfs_hlist_add_after(cfs_hlist_node_t *n,
+ cfs_hlist_node_t *next)
{
next->next = n->next;
n->next = next;
next->next->pprev = &next->next;
}
-#define hlist_entry(ptr, type, member) container_of(ptr,type,member)
+#define cfs_hlist_entry(ptr, type, member) container_of(ptr,type,member)
-#define hlist_for_each(pos, head) \
- for (pos = (head)->first; pos && ({ prefetch(pos->next); 1; }); \
+#define cfs_hlist_for_each(pos, head) \
+ for (pos = (head)->first; pos && (prefetch(pos->next), 1); \
pos = pos->next)
-#define hlist_for_each_safe(pos, n, head) \
- for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \
+#define cfs_hlist_for_each_safe(pos, n, head) \
+ for (pos = (head)->first; pos && (n = pos->next, 1); \
pos = n)
/**
- * hlist_for_each_entry - iterate over list of given type
- * @tpos: the type * to use as a loop counter.
- * @pos: the &struct hlist_node to use as a loop counter.
- * @head: the head for your list.
- * @member: the name of the hlist_node within the struct.
+ * Iterate over an hlist of given type
+ * \param tpos the type * to use as a loop counter.
+ * \param pos the &struct hlist_node to use as a loop counter.
+ * \param head the head for your list.
+ * \param member the name of the hlist_node within the struct.
*/
-#define hlist_for_each_entry(tpos, pos, head, member) \
- for (pos = (head)->first; \
- pos && ({ prefetch(pos->next); 1;}) && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
+#define cfs_hlist_for_each_entry(tpos, pos, head, member) \
+ for (pos = (head)->first; \
+ pos && ({ prefetch(pos->next); 1;}) && \
+ ({ tpos = cfs_hlist_entry(pos, typeof(*tpos), member); 1;}); \
pos = pos->next)
/**
- * hlist_for_each_entry_continue - iterate over a hlist continuing after existing 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.
+ * Iterate over an hlist continuing after existing point
+ * \param tpos the type * to use as a loop counter.
+ * \param pos the &struct hlist_node to use as a loop counter.
+ * \param member the name of the hlist_node within the struct.
*/
-#define hlist_for_each_entry_continue(tpos, pos, member) \
- for (pos = (pos)->next; \
- pos && ({ prefetch(pos->next); 1;}) && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
+#define cfs_hlist_for_each_entry_continue(tpos, pos, member) \
+ for (pos = (pos)->next; \
+ pos && ({ prefetch(pos->next); 1;}) && \
+ ({ tpos = cfs_hlist_entry(pos, typeof(*tpos), member); 1;}); \
pos = pos->next)
/**
- * hlist_for_each_entry_from - iterate over a hlist continuing from existing 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.
+ * Iterate over an hlist continuing from an existing point
+ * \param tpos the type * to use as a loop counter.
+ * \param pos the &struct hlist_node to use as a loop counter.
+ * \param member the name of the hlist_node within the struct.
*/
-#define hlist_for_each_entry_from(tpos, pos, member) \
- for (; pos && ({ prefetch(pos->next); 1;}) && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
+#define cfs_hlist_for_each_entry_from(tpos, pos, member) \
+ for (; pos && ({ prefetch(pos->next); 1;}) && \
+ ({ tpos = cfs_hlist_entry(pos, typeof(*tpos), member); 1;}); \
pos = pos->next)
/**
- * hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry
- * @tpos: the type * to use as a loop counter.
- * @pos: the &struct hlist_node to use as a loop counter.
- * @n: another &struct hlist_node to use as temporary storage
- * @head: the head for your list.
- * @member: the name of the hlist_node within the struct.
+ * Iterate over an hlist of given type safe against removal of list entry
+ * \param tpos the type * to use as a loop counter.
+ * \param pos the &struct hlist_node to use as a loop counter.
+ * \param n another &struct hlist_node to use as temporary storage
+ * \param head the head for your list.
+ * \param member the name of the hlist_node within the struct.
*/
-#define hlist_for_each_entry_safe(tpos, pos, n, head, member) \
- for (pos = (head)->first; \
- pos && ({ n = pos->next; 1; }) && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
+#define cfs_hlist_for_each_entry_safe(tpos, pos, n, head, member) \
+ for (pos = (head)->first; \
+ pos && ({ n = pos->next; 1; }) && \
+ ({ tpos = cfs_hlist_entry(pos, typeof(*tpos), member); 1;}); \
pos = n)
+/* @} */
+
#endif /* __linux__ && __KERNEL__ */
-#ifndef list_for_each_prev
+#ifndef cfs_list_for_each_prev
/**
- * list_for_each_prev - iterate over a list in reverse order
- * @pos: the &struct list_head to use as a loop counter.
- * @head: the head for your list.
+ * Iterate over a list in reverse order
+ * \param pos the &struct list_head to use as a loop counter.
+ * \param head the head for your list.
*/
-#define list_for_each_prev(pos, head) \
- for (pos = (head)->prev, prefetch(pos->prev); pos != (head); \
+#define cfs_list_for_each_prev(pos, head) \
+ for (pos = (head)->prev, prefetch(pos->prev); pos != (head); \
pos = pos->prev, prefetch(pos->prev))
-#endif /* list_for_each_prev */
+#endif /* cfs_list_for_each_prev */
-#ifndef list_for_each_entry
+#ifndef cfs_list_for_each_entry
/**
- * list_for_each_entry - iterate 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.
+ * Iterate over a list of given type
+ * \param pos the type * to use as a loop counter.
+ * \param head the head for your list.
+ * \param member the name of the list_struct within the struct.
*/
-#define list_for_each_entry(pos, head, member) \
- for (pos = list_entry((head)->next, typeof(*pos), member), \
- prefetch(pos->member.next); \
- &pos->member != (head); \
- pos = list_entry(pos->member.next, typeof(*pos), member), \
+#define cfs_list_for_each_entry(pos, head, member) \
+ for (pos = cfs_list_entry((head)->next, typeof(*pos), member), \
+ prefetch(pos->member.next); \
+ &pos->member != (head); \
+ pos = cfs_list_entry(pos->member.next, typeof(*pos), member), \
prefetch(pos->member.next))
-#endif /* list_for_each_entry */
+#endif /* cfs_list_for_each_entry */
+
+#ifndef cfs_list_for_each_entry_rcu
+#define cfs_list_for_each_entry_rcu(pos, head, member) \
+ list_for_each_entry(pos, head, member)
+#endif
-#ifndef list_for_each_entry_reverse
+#ifndef cfs_list_for_each_entry_rcu
+#define cfs_list_for_each_entry_rcu(pos, head, member) \
+ list_for_each_entry(pos, head, member)
+#endif
+
+#ifndef cfs_list_for_each_entry_reverse
/**
- * list_for_each_entry_reverse - iterate backwards 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.
+ * Iterate backwards over a list of given type.
+ * \param pos the type * to use as a loop counter.
+ * \param head the head for your list.
+ * \param member the name of the list_struct within the struct.
*/
-#define list_for_each_entry_reverse(pos, head, member) \
- for (pos = list_entry((head)->prev, typeof(*pos), member); \
- prefetch(pos->member.prev), &pos->member != (head); \
- pos = list_entry(pos->member.prev, typeof(*pos), member))
-#endif /* list_for_each_entry_reverse */
+#define cfs_list_for_each_entry_reverse(pos, head, member) \
+ for (pos = cfs_list_entry((head)->prev, typeof(*pos), member); \
+ prefetch(pos->member.prev), &pos->member != (head); \
+ pos = cfs_list_entry(pos->member.prev, typeof(*pos), member))
+#endif /* cfs_list_for_each_entry_reverse */
-#ifndef list_for_each_entry_safe
+#ifndef cfs_list_for_each_entry_safe
/**
- * list_for_each_entry_safe - iterate over list of given type safe against removal of list entry
- * @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 a list of given type safe against removal of list entry
+ * \param pos the type * to use as a loop counter.
+ * \param n another type * to use as temporary storage
+ * \param head the head for your list.
+ * \param member the name of the list_struct within the struct.
*/
-#define list_for_each_entry_safe(pos, n, head, member) \
- for (pos = list_entry((head)->next, typeof(*pos), member), \
- n = list_entry(pos->member.next, typeof(*pos), member); \
- &pos->member != (head); \
- pos = n, n = list_entry(n->member.next, typeof(*n), member))
-#endif /* list_for_each_entry_safe */
-
-#ifndef list_for_each_entry_safe_from
+#define cfs_list_for_each_entry_safe(pos, n, head, member) \
+ for (pos = cfs_list_entry((head)->next, typeof(*pos), member), \
+ n = cfs_list_entry(pos->member.next, typeof(*pos), member); \
+ &pos->member != (head); \
+ pos = n, n = cfs_list_entry(n->member.next, typeof(*n), member))
+
+#endif /* cfs_list_for_each_entry_safe */
+
+#ifndef cfs_list_for_each_entry_safe_from
/**
- * list_for_each_entry_safe_from
- * @pos: the type * to use as a loop cursor.
- * @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 a list continuing from an existing point
+ * \param pos the type * to use as a loop cursor.
+ * \param n another type * to use as temporary storage
+ * \param head the head for your list.
+ * \param 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); \
+#define cfs_list_for_each_entry_safe_from(pos, n, head, member) \
+ for (n = cfs_list_entry(pos->member.next, typeof(*pos), member); \
&pos->member != (head); \
- pos = n, n = list_entry(n->member.next, typeof(*n), member))
-#endif /* list_for_each_entry_safe_from */
+ pos = n, n = cfs_list_entry(n->member.next, typeof(*n), member))
+#endif /* cfs_list_for_each_entry_safe_from */
+
+#define cfs_list_for_each_entry_typed(pos, head, type, member) \
+ for (pos = cfs_list_entry((head)->next, type, member), \
+ prefetch(pos->member.next); \
+ &pos->member != (head); \
+ pos = cfs_list_entry(pos->member.next, type, member), \
+ prefetch(pos->member.next))
+
+#define cfs_list_for_each_entry_reverse_typed(pos, head, type, member) \
+ for (pos = cfs_list_entry((head)->prev, type, member); \
+ prefetch(pos->member.prev), &pos->member != (head); \
+ pos = cfs_list_entry(pos->member.prev, type, member))
+
+#define cfs_list_for_each_entry_safe_typed(pos, n, head, type, member) \
+ for (pos = cfs_list_entry((head)->next, type, member), \
+ n = cfs_list_entry(pos->member.next, type, member); \
+ &pos->member != (head); \
+ pos = n, n = cfs_list_entry(n->member.next, type, member))
+
+#define cfs_list_for_each_entry_safe_from_typed(pos, n, head, type, member) \
+ for (n = cfs_list_entry(pos->member.next, type, member); \
+ &pos->member != (head); \
+ pos = n, n = cfs_list_entry(n->member.next, type, member))
+
+#define cfs_hlist_for_each_entry_typed(tpos, pos, head, type, member) \
+ for (pos = (head)->first; \
+ pos && (prefetch(pos->next), 1) && \
+ (tpos = cfs_hlist_entry(pos, type, member), 1); \
+ pos = pos->next)
+
+#define cfs_hlist_for_each_entry_safe_typed(tpos, pos, n, head, type, member) \
+ for (pos = (head)->first; \
+ pos && (n = pos->next, 1) && \
+ (tpos = cfs_hlist_entry(pos, type, member), 1); \
+ pos = n)
#endif /* __LIBCFS_LUSTRE_LIST_H__ */