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ipv6: unify fragment thresh handling code

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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>
This commit is contained in:
Amerigo Wang 2012-09-18 16:50:11 +00:00 • committed by David S. Miller
parent d4915c087f
commit 6b102865e7
5 changed files with 18 additions and 22 deletions
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9
net/ipv4/inet_fragment.c
View file

@ -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);