diff options
Diffstat (limited to 'net/ipv4/inet_fragment.c')
| -rw-r--r-- | net/ipv4/inet_fragment.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c index ec10e05c6666..15fb2c4a36a7 100644 --- a/net/ipv4/inet_fragment.c +++ b/net/ipv4/inet_fragment.c @@ -17,6 +17,8 @@ #include <linux/timer.h> #include <linux/mm.h> #include <linux/random.h> +#include <linux/skbuff.h> +#include <linux/rtnetlink.h> #include <net/inet_frag.h> @@ -100,3 +102,41 @@ void inet_frag_kill(struct inet_frag_queue *fq, struct inet_frags *f) } EXPORT_SYMBOL(inet_frag_kill); + +static inline void frag_kfree_skb(struct inet_frags *f, struct sk_buff *skb, + int *work) +{ + if (work) + *work -= skb->truesize; + + atomic_sub(skb->truesize, &f->mem); + if (f->skb_free) + f->skb_free(skb); + kfree_skb(skb); +} + +void inet_frag_destroy(struct inet_frag_queue *q, struct inet_frags *f, + int *work) +{ + struct sk_buff *fp; + + BUG_TRAP(q->last_in & COMPLETE); + BUG_TRAP(del_timer(&q->timer) == 0); + + /* Release all fragment data. */ + fp = q->fragments; + while (fp) { + struct sk_buff *xp = fp->next; + + frag_kfree_skb(f, fp, work); + fp = xp; + } + + if (work) + *work -= f->qsize; + atomic_sub(f->qsize, &f->mem); + + f->destructor(q); + +} +EXPORT_SYMBOL(inet_frag_destroy); |