From: Ingo Molnar <[email protected]>
teach special (multi-initialized) locking code to the lock validator.
Has no effect on non-lockdep kernels.
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Arjan van de Ven <[email protected]>
---
---
include/linux/skbuff.h | 7 +------
net/core/skbuff.c | 9 +++++++++
2 files changed, 10 insertions(+), 6 deletions(-)
Index: linux/include/linux/skbuff.h
===================================================================
--- linux.orig/include/linux/skbuff.h
+++ linux/include/linux/skbuff.h
@@ -584,12 +584,7 @@ static inline __u32 skb_queue_len(const
return list_->qlen;
}
-static inline void skb_queue_head_init(struct sk_buff_head *list)
-{
- spin_lock_init(&list->lock);
- list->prev = list->next = (struct sk_buff *)list;
- list->qlen = 0;
-}
+extern void skb_queue_head_init(struct sk_buff_head *list);
/*
* Insert an sk_buff at the start of a list.
Index: linux/net/core/skbuff.c
===================================================================
--- linux.orig/net/core/skbuff.c
+++ linux/net/core/skbuff.c
@@ -71,6 +71,15 @@
static kmem_cache_t *skbuff_head_cache __read_mostly;
static kmem_cache_t *skbuff_fclone_cache __read_mostly;
+void skb_queue_head_init(struct sk_buff_head *list)
+{
+ spin_lock_init(&list->lock);
+ list->prev = list->next = (struct sk_buff *)list;
+ list->qlen = 0;
+}
+
+EXPORT_SYMBOL(skb_queue_head_init);
+
/*
* Keep out-of-line to prevent kernel bloat.
* __builtin_return_address is not used because it is not always
-
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