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authorJesper Dangaard Brouer <brouer@redhat.com>2013-01-28 23:45:12 +0000
committerDavid S. Miller <davem@davemloft.net>2013-01-29 13:36:24 -0500
commitd433673e5f9180e05a770c4b2ab18c08ad51cc21 (patch)
tree7d71bb8483724418e6a4f48cc4099a8722c704c8 /net/ipv6/reassembly.c
parent6e34a8b37aca63f109bf990d46131ee07206f5f1 (diff)
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.c6
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;