diff options
Diffstat (limited to 'kernel/include/linux/list.h')
| -rw-r--r-- | kernel/include/linux/list.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/include/linux/list.h b/kernel/include/linux/list.h index feb773c76..993395a2e 100644 --- a/kernel/include/linux/list.h +++ b/kernel/include/linux/list.h @@ -87,7 +87,7 @@ static inline void list_add_tail(struct list_head *new, struct list_head *head) static inline void __list_del(struct list_head * prev, struct list_head * next) { next->prev = prev; - prev->next = next; + WRITE_ONCE(prev->next, next); } /** @@ -615,7 +615,8 @@ static inline void __hlist_del(struct hlist_node *n) { struct hlist_node *next = n->next; struct hlist_node **pprev = n->pprev; - *pprev = next; + + WRITE_ONCE(*pprev, next); if (next) next->pprev = pprev; } @@ -672,6 +673,11 @@ static inline void hlist_add_fake(struct hlist_node *n) n->pprev = &n->next; } +static inline bool hlist_fake(struct hlist_node *h) +{ + return h->pprev == &h->next; +} + /* * Move a list from one list head to another. Fixup the pprev * reference of the first entry if it exists. |