diff options
| author |   Jesper Dangaard Brouer <brouer@redhat.com> | 2013-01-28 23:45:12 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-01-29 13:36:24 -0500 |
| commit | d433673e5f9180e05a770c4b2ab18c08ad51cc21 (patch) | |
| tree | 7d71bb8483724418e6a4f48cc4099a8722c704c8 /net/ipv6/reassembly.c | |
| parent | net: cacheline adjust struct inet_frag_queue (diff) | |
| download | linux-dev-d433673e5f9180e05a770c4b2ab18c08ad51cc21.tar.xz linux-dev-d433673e5f9180e05a770c4b2ab18c08ad51cc21.zip | |
net: frag helper functions for mem limit tracking
This change is primarily a preparation to ease the extension of memory
limit tracking.
The change does reduce the number atomic operation, during freeing of
a frag queue. This does introduce a some performance improvement, as
these atomic operations are at the core of the performance problems
seen on NUMA systems.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/reassembly.c')
| -rw-r--r-- | net/ipv6/reassembly.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index e5253ec9e0fc..18cb8defcdb2 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -327,7 +327,7 @@ found: } fq->q.stamp = skb->tstamp; fq->q.meat += skb->len; - atomic_add(skb->truesize, &fq->q.net->mem); + add_frag_mem_limit(&fq->q, skb->truesize); /* The first fragment. * nhoffset is obtained from the first fragment, of course. @@ -429,7 +429,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev, head->len -= clone->len; clone->csum = 0; clone->ip_summed = head->ip_summed; - atomic_add(clone->truesize, &fq->q.net->mem); + add_frag_mem_limit(&fq->q, clone->truesize); } /* We have to remove fragment header from datagram and to relocate @@ -467,7 +467,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev, } fp = next; } - atomic_sub(sum_truesize, &fq->q.net->mem); + sub_frag_mem_limit(&fq->q, sum_truesize); head->next = NULL; head->dev = dev; |