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[PATCH] Debug variants of linked list macros

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Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Dave Jones 2006-09-29 01:59:00 -07:00 • committed by Linus Torvalds
parent df67b3daea
commit 199a9afc3d
4 changed files with 102 additions and 0 deletions
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15
include/linux/list.h
View file

@ -39,6 +39,7 @@ static inline void INIT_LIST_HEAD(struct list_head *list)
* This is only for internal list manipulation where we know
* the prev/next entries already!
*/
#ifndef CONFIG_DEBUG_LIST
static inline void __list_add(struct list_head *new,
struct list_head *prev,
struct list_head *next)
@ -48,6 +49,11 @@ static inline void __list_add(struct list_head *new,
new->prev = prev;
prev->next = new;
}
#else
extern void __list_add(struct list_head *new,
struct list_head *prev,
struct list_head *next);
#endif
/**
* list_add - add a new entry
@ -57,10 +63,15 @@ static inline void __list_add(struct list_head *new,
* Insert a new entry after the specified head.
* This is good for implementing stacks.
*/
#ifndef CONFIG_DEBUG_LIST
static inline void list_add(struct list_head *new, struct list_head *head)
{
__list_add(new, head, head->next);
}
#else
extern void list_add(struct list_head *new, struct list_head *head);
#endif
/**
* list_add_tail - add a new entry
@ -153,12 +164,16 @@ static inline void __list_del(struct list_head * prev, struct list_head * next)
* Note: list_empty on entry does not return true after this, the entry is
* in an undefined state.
*/
#ifndef CONFIG_DEBUG_LIST
static inline void list_del(struct list_head *entry)
{
__list_del(entry->prev, entry->next);
entry->next = LIST_POISON1;
entry->prev = LIST_POISON2;
}
#else
extern void list_del(struct list_head *entry);
#endif
/**
* list_del_rcu - deletes entry from list without re-initialization