4 struct inet_frag_queue
{
5 struct hlist_node list
;
6 struct list_head lru_list
; /* lru list member */
9 struct timer_list timer
; /* when will this queue expire? */
10 struct sk_buff
*fragments
; /* list of received fragments */
12 int len
; /* total length of orig datagram */
14 __u8 last_in
; /* first/last segment arrived? */
21 #define INETFRAGS_HASHSZ 64
23 struct inet_frags_ctl
{
31 struct list_head lru_list
;
32 struct hlist_head hash
[INETFRAGS_HASHSZ
];
38 struct timer_list secret_timer
;
39 struct inet_frags_ctl
*ctl
;
41 unsigned int (*hashfn
)(struct inet_frag_queue
*);
42 void (*destructor
)(struct inet_frag_queue
*);
43 void (*skb_free
)(struct sk_buff
*);
44 int (*equal
)(struct inet_frag_queue
*q1
,
45 struct inet_frag_queue
*q2
);
48 void inet_frags_init(struct inet_frags
*);
49 void inet_frags_fini(struct inet_frags
*);
51 void inet_frag_kill(struct inet_frag_queue
*q
, struct inet_frags
*f
);
52 void inet_frag_destroy(struct inet_frag_queue
*q
,
53 struct inet_frags
*f
, int *work
);
54 int inet_frag_evictor(struct inet_frags
*f
);
55 struct inet_frag_queue
*inet_frag_intern(struct inet_frag_queue
*q
,
56 struct inet_frags
*f
, unsigned int hash
);
58 static inline void inet_frag_put(struct inet_frag_queue
*q
, struct inet_frags
*f
)
60 if (atomic_dec_and_test(&q
->refcnt
))
61 inet_frag_destroy(q
, f
, NULL
);
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