[NETFILTER]: nf_nat: use RCU for bysource hash Signed-off-by: Patrick McHardy <kaber@xxxxxxxxx> --- commit 9a797e6248868e23d468f801ec67b98a44ef689b tree 5d08e94eede5551cc1f0188da7074d9b285b41be parent cd3672c2df98db3eb29b793ec537f8382e268dc8 author Patrick McHardy <kaber@xxxxxxxxx> Wed, 30 Jan 2008 21:03:09 +0100 committer Patrick McHardy <kaber@xxxxxxxxx> Wed, 30 Jan 2008 21:03:09 +0100 net/ipv4/netfilter/nf_nat_core.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-) diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c index c07575d..c7a985f 100644 --- a/net/ipv4/netfilter/nf_nat_core.c +++ b/net/ipv4/netfilter/nf_nat_core.c @@ -154,8 +154,8 @@ find_appropriate_src(const struct nf_conntrack_tuple *tuple, struct nf_conn *ct; struct hlist_node *n; - read_lock_bh(&nf_nat_lock); - hlist_for_each_entry(nat, n, &bysource[h], bysource) { + rcu_read_lock(); + hlist_for_each_entry_rcu(nat, n, &bysource[h], bysource) { ct = nat->ct; if (same_src(ct, tuple)) { /* Copy source part from reply tuple. */ @@ -164,12 +164,12 @@ find_appropriate_src(const struct nf_conntrack_tuple *tuple, result->dst = tuple->dst; if (in_range(result, range)) { - read_unlock_bh(&nf_nat_lock); + rcu_read_unlock(); return 1; } } } - read_unlock_bh(&nf_nat_lock); + rcu_read_unlock(); return 0; } @@ -334,7 +334,7 @@ nf_nat_setup_info(struct nf_conn *ct, /* nf_conntrack_alter_reply might re-allocate exntension aera */ nat = nfct_nat(ct); nat->ct = ct; - hlist_add_head(&nat->bysource, &bysource[srchash]); + hlist_add_head_rcu(&nat->bysource, &bysource[srchash]); write_unlock_bh(&nf_nat_lock); } @@ -595,7 +595,7 @@ static void nf_nat_cleanup_conntrack(struct nf_conn *ct) NF_CT_ASSERT(nat->ct->status & IPS_NAT_DONE_MASK); write_lock_bh(&nf_nat_lock); - hlist_del(&nat->bysource); + hlist_del_rcu(&nat->bysource); nat->ct = NULL; write_unlock_bh(&nf_nat_lock); } - To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html