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[INET]: Consolidate xxx_find() in fragment management

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Here we need another callback ->match to check whether the
entry found in hash matches the key passed. The key used 
is the same as the creation argument for inet_frag_create.

Yet again, this ->match is the same for netfilter and ipv6.
Running a frew steps forward - this callback will later
replace the ->equal one.

Since the inet_frag_find() uses the already consolidated
inet_frag_create() remove the xxx_frag_create from protocol
codes.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov
2007-10-17 19:47:21 -07:00
committed by David S. Miller
parent c6fda28229
commit abd6523d15
6 changed files with 73 additions and 98 deletions
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25
net/ipv4/inet_fragment.c
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@@ -226,8 +226,8 @@ static struct inet_frag_queue *inet_frag_alloc(struct inet_frags *f, void *arg)
return q;
}
struct inet_frag_queue *inet_frag_create(struct inet_frags *f, void *arg,
unsigned int hash)
static struct inet_frag_queue *inet_frag_create(struct inet_frags *f,
void *arg, unsigned int hash)
{
struct inet_frag_queue *q;
@@ -237,4 +237,23 @@ struct inet_frag_queue *inet_frag_create(struct inet_frags *f, void *arg,
return inet_frag_intern(q, f, hash);
}
EXPORT_SYMBOL(inet_frag_create);
struct inet_frag_queue *inet_frag_find(struct inet_frags *f, void *key,
unsigned int hash)
{
struct inet_frag_queue *q;
struct hlist_node *n;
read_lock(&f->lock);
hlist_for_each_entry(q, n, &f->hash[hash], list) {
if (f->match(q, key)) {
atomic_inc(&q->refcnt);
read_unlock(&f->lock);
return q;
}
}
read_unlock(&f->lock);
return inet_frag_create(f, key, hash);
}
EXPORT_SYMBOL(inet_frag_find);