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authorPavel Emelyanov <xemul@openvz.org>2007-10-15 13:40:06 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-15 23:26:42 +0400
commit8e7999c44ee95e1e90ac91c83557a04e2948f160 (patch)
tree4295add7b91114fd43eef37d70b664858776dd0d /net/ipv6
parent1e4b82873af0f21002e37a81ef063d2e5410deb3 (diff)
downloadlinux-8e7999c44ee95e1e90ac91c83557a04e2948f160.tar.xz
[INET]: Consolidate the xxx_evictor
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>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c29
-rw-r--r--net/ipv6/reassembly.c30
2 files changed, 5 insertions, 54 deletions
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 785f5cda188e..e4fbe5ba88f1 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -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)
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 940b7d2383ec..02e4e855b927 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -185,33 +185,11 @@ static __inline__ void fq_kill(struct frag_queue *fq)
static void ip6_evictor(struct inet6_dev *idev)
{
- struct frag_queue *fq;
- struct list_head *tmp;
- int work;
-
- work = atomic_read(&ip6_frags.mem) - ip6_frags_ctl.low_thresh;
- if (work <= 0)
- return;
-
- while(work > 0) {
- read_lock(&ip6_frags.lock);
- if (list_empty(&ip6_frags.lru_list)) {
- read_unlock(&ip6_frags.lock);
- return;
- }
- tmp = ip6_frags.lru_list.next;
- fq = list_entry(tmp, struct frag_queue, q.lru_list);
- atomic_inc(&fq->q.refcnt);
- read_unlock(&ip6_frags.lock);
+ int evicted;
- spin_lock(&fq->q.lock);
- if (!(fq->q.last_in&COMPLETE))
- fq_kill(fq);
- spin_unlock(&fq->q.lock);
-
- fq_put(fq, &work);
- IP6_INC_STATS_BH(idev, IPSTATS_MIB_REASMFAILS);
- }
+ evicted = inet_frag_evictor(&ip6_frags);
+ if (evicted)
+ IP6_ADD_STATS_BH(idev, IPSTATS_MIB_REASMFAILS, evicted);
}
static void ip6_frag_expire(unsigned long data)