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tcp: replace ehash_size by ehash_mask

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Storing the mask (size - 1) instead of the size allows fast path to be
a bit faster.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2009-10-09 00:16:19 +00:00
committed by David S. Miller
parent c3faca053d
commit f373b53b5f
8 changed files with 21 additions and 21 deletions
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6
net/ipv4/tcp_ipv4.c
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@@ -2000,7 +2000,7 @@ static void *established_get_first(struct seq_file *seq)
struct net *net = seq_file_net(seq);
void *rc = NULL;
for (st->bucket = 0; st->bucket < tcp_hashinfo.ehash_size; ++st->bucket) {
for (st->bucket = 0; st->bucket <= tcp_hashinfo.ehash_mask; ++st->bucket) {
struct sock *sk;
struct hlist_nulls_node *node;
struct inet_timewait_sock *tw;
@@ -2061,10 +2061,10 @@ get_tw:
st->state = TCP_SEQ_STATE_ESTABLISHED;
/* Look for next non empty bucket */
while (++st->bucket < tcp_hashinfo.ehash_size &&
while (++st->bucket <= tcp_hashinfo.ehash_mask &&
empty_bucket(st))
;
if (st->bucket >= tcp_hashinfo.ehash_size)
if (st->bucket > tcp_hashinfo.ehash_mask)
return NULL;
spin_lock_bh(inet_ehash_lockp(&tcp_hashinfo, st->bucket));