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[INET]: Consolidate the xxx_evictor

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The evictors collect some statistics for ipv4 and ipv6,
so make it return the number of evicted queues and account
them all at once in the caller.

The XXX_ADD_STATS_BH() macros are just for this case,
but maybe there are places in code, that can make use of
them as well.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov
2007-10-15 02:40:06 -07:00
committed by David S. Miller
parent 1e4b82873a
commit 8e7999c44e
7 changed files with 52 additions and 80 deletions
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29
net/ipv6/netfilter/nf_conntrack_reasm.c
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@@ -163,34 +163,7 @@ static __inline__ void fq_kill(struct nf_ct_frag6_queue *fq)
static void nf_ct_frag6_evictor(void)
{
struct nf_ct_frag6_queue *fq;
struct list_head *tmp;
unsigned int work;
work = atomic_read(&nf_frags.mem);
if (work <= nf_frags_ctl.low_thresh)
return;
work -= nf_frags_ctl.low_thresh;
while (work > 0) {
read_lock(&nf_frags.lock);
if (list_empty(&nf_frags.lru_list)) {
read_unlock(&nf_frags.lock);
return;
}
tmp = nf_frags.lru_list.next;
BUG_ON(tmp == NULL);
fq = list_entry(tmp, struct nf_ct_frag6_queue, q.lru_list);
atomic_inc(&fq->q.refcnt);
read_unlock(&nf_frags.lock);
spin_lock(&fq->q.lock);
if (!(fq->q.last_in&COMPLETE))
fq_kill(fq);
spin_unlock(&fq->q.lock);
fq_put(fq, &work);
}
inet_frag_evictor(&nf_frags);
}
static void nf_ct_frag6_expire(unsigned long data)