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authorAmerigo Wang <amwang@redhat.com>2012-09-18 16:50:11 +0000
committerDavid S. Miller <davem@davemloft.net>2012-09-19 17:23:28 -0400
commit6b102865e7ba9ff1e3c49c32c7187bb427d91798 (patch)
tree21a7f917457ab79f40d5bd579e547a030b2f0610 /net/ipv4/inet_fragment.c
parentd4915c087f7c2457c580efc16fe0bfa1a576274d (diff)
downloadop-kernel-dev-6b102865e7ba9ff1e3c49c32c7187bb427d91798.zip
op-kernel-dev-6b102865e7ba9ff1e3c49c32c7187bb427d91798.tar.gz
ipv6: unify fragment thresh handling code
Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Michal Kubeček <mkubecek@suse.cz> Cc: David Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.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.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 85190e6..4750d2b 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -89,7 +89,7 @@ void inet_frags_exit_net(struct netns_frags *nf, struct inet_frags *f)
nf->low_thresh = 0;
local_bh_disable();
- inet_frag_evictor(nf, f);
+ inet_frag_evictor(nf, f, true);
local_bh_enable();
}
EXPORT_SYMBOL(inet_frags_exit_net);
@@ -158,11 +158,16 @@ void inet_frag_destroy(struct inet_frag_queue *q, struct inet_frags *f,
}
EXPORT_SYMBOL(inet_frag_destroy);
-int inet_frag_evictor(struct netns_frags *nf, struct inet_frags *f)
+int inet_frag_evictor(struct netns_frags *nf, struct inet_frags *f, bool force)
{
struct inet_frag_queue *q;
int work, evicted = 0;
+ if (!force) {
+ if (atomic_read(&nf->mem) <= nf->high_thresh)
+ return 0;
+ }
+
work = atomic_read(&nf->mem) - nf->low_thresh;
while (work > 0) {
read_lock(&f->lock);
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