diff options
author | Pavel Emelyanov <xemul@openvz.org> | 2007-10-15 11:31:52 +0200 |
---|---|---|
committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-15 21:26:39 +0200 |
commit | 7eb95156d9dce2f59794264db336ce007d71638b (patch) | |
tree | c283a095f1a9d530edb1a7058454ba30b4f7d028 /include/net/inet_frag.h | |
parent | [INET]: Move common fields from frag_queues in one place. (diff) | |
download | linux-7eb95156d9dce2f59794264db336ce007d71638b.tar.xz linux-7eb95156d9dce2f59794264db336ce007d71638b.zip |
[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 <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/inet_frag.h')
-rw-r--r-- | include/net/inet_frag.h | 15 |
1 files changed, 15 insertions, 0 deletions
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 |