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| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2010-11-15 19:45:13 +0100 |
|---|---|---|
| committer |   Patrick McHardy <kaber@trash.net> | 2010-11-15 19:45:13 +0100 |
| commit | c5d277d29ad1ae9add8d6984025ccd2e835971ce (patch) | |
| tree | d829006da562f7f6ac1cdf983a56d26435e7093a /net/netfilter/nf_conntrack_expect.c | |
| parent | netfilter: nf_nat_amanda: rename a variable (diff) | |
| download | linux-dev-c5d277d29ad1ae9add8d6984025ccd2e835971ce.tar.xz linux-dev-c5d277d29ad1ae9add8d6984025ccd2e835971ce.zip | |
netfilter: rcu sparse cleanups
Use RCU helpers to reduce number of sparse warnings
(CONFIG_SPARSE_RCU_POINTER=y), and adds lockdep checks.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'net/netfilter/nf_conntrack_expect.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_expect.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c index cab196cf428c..bbb21402596d 100644 --- a/net/netfilter/nf_conntrack_expect.c +++ b/net/netfilter/nf_conntrack_expect.c @@ -337,7 +337,10 @@ static void nf_ct_expect_insert(struct nf_conntrack_expect *exp) setup_timer(&exp->timeout, nf_ct_expectation_timed_out, (unsigned long)exp); if (master_help) { - p = &master_help->helper->expect_policy[exp->class]; + p = &rcu_dereference_protected( + master_help->helper, + lockdep_is_held(&nf_conntrack_lock) + )->expect_policy[exp->class]; exp->timeout.expires = jiffies + p->timeout * HZ; } add_timer(&exp->timeout); @@ -373,7 +376,10 @@ static inline int refresh_timer(struct nf_conntrack_expect *i) if (!del_timer(&i->timeout)) return 0; - p = &master_help->helper->expect_policy[i->class]; + p = &rcu_dereference_protected( + master_help->helper, + lockdep_is_held(&nf_conntrack_lock) + )->expect_policy[i->class]; i->timeout.expires = jiffies + p->timeout * HZ; add_timer(&i->timeout); return 1; @@ -411,7 +417,10 @@ static inline int __nf_ct_expect_check(struct nf_conntrack_expect *expect) } /* Will be over limit? */ if (master_help) { - p = &master_help->helper->expect_policy[expect->class]; + p = &rcu_dereference_protected( + master_help->helper, + lockdep_is_held(&nf_conntrack_lock) + )->expect_policy[expect->class]; if (p->max_expected && master_help->expecting[expect->class] >= p->max_expected) { evict_oldest_expect(master, expect); |