diff options
| author |   Jesper Dangaard Brouer <brouer@redhat.com> | 2013-03-27 05:55:56 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-03-27 12:48:33 -0400 |
| commit | 1b5ab0def4f6e42e8b8097c3b11d2e8d96baafec (patch) | |
| tree | 7cdce8ba8eda1451847fead45108f4de39d5cec5 /net/ipv4/inet_fragment.c | |
| parent | net: frag, avoid several CPUs grabbing same frag queue during LRU evictor loop (diff) | |
| download | linux-dev-1b5ab0def4f6e42e8b8097c3b11d2e8d96baafec.tar.xz linux-dev-1b5ab0def4f6e42e8b8097c3b11d2e8d96baafec.zip | |
net: use the frag lru_lock to protect netns_frags.nqueues update
Move the protection of netns_frags.nqueues updates under the LRU_lock,
instead of the write lock. As they are located on the same cacheline,
and this is also needed when transitioning to use per hash bucket locking.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inet_fragment.c')
| -rw-r--r-- | net/ipv4/inet_fragment.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c index 8ba548a8efce..1206ca64b0ea 100644 --- a/net/ipv4/inet_fragment.c +++ b/net/ipv4/inet_fragment.c @@ -124,7 +124,6 @@ static inline void fq_unlink(struct inet_frag_queue *fq, struct inet_frags *f) { write_lock(&f->lock); hlist_del(&fq->list); - fq->net->nqueues--; write_unlock(&f->lock); inet_frag_lru_del(fq); } @@ -260,7 +259,6 @@ static struct inet_frag_queue *inet_frag_intern(struct netns_frags *nf, atomic_inc(&qp->refcnt); hlist_add_head(&qp->list, &f->hash[hash]); - nf->nqueues++; write_unlock(&f->lock); inet_frag_lru_add(nf, qp); return qp; |