From 7eb95156d9dce2f59794264db336ce007d71638b Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Mon, 15 Oct 2007 02:31:52 -0700 Subject: [INET]: Collect frag queues management objects together There are some objects that are common in all the places which are used to keep track of frag queues, they are: * hash table * LRU list * rw lock * rnd number for hash function * the number of queues * the amount of memory occupied by queues * secret timer Move all this stuff into one structure (struct inet_frags) to make it possible use them uniformly in the future. Like with the previous patch this mostly consists of hunks like - write_lock(&ipfrag_lock); + write_lock(&ip4_frags.lock); To address the issue with exporting the number of queues and the amount of memory occupied by queues outside the .c file they are declared in, I introduce a couple of helpers. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller --- include/net/inet_frag.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'include/net/inet_frag.h') diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h index 74e9cb9b6943..d51f23873da9 100644 --- a/include/net/inet_frag.h +++ b/include/net/inet_frag.h @@ -18,4 +18,19 @@ struct inet_frag_queue { #define LAST_IN 1 }; +#define INETFRAGS_HASHSZ 64 + +struct inet_frags { + struct list_head lru_list; + struct hlist_head hash[INETFRAGS_HASHSZ]; + rwlock_t lock; + u32 rnd; + int nqueues; + atomic_t mem; + struct timer_list secret_timer; +}; + +void inet_frags_init(struct inet_frags *); +void inet_frags_fini(struct inet_frags *); + #endif -- cgit v1.2.3-59-g8ed1b