redonkable/alistair23-linux
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tipc: Minor optimization of broadcast link transmit queue statistic

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The two broadcast link statistics fields that are used to derive the
average length of that link's transmit queue are now updated only after
a successful attempt to send a broadcast message, since there is no need
to update these values when an unsuccessful send attempt leaves the
queue unchanged.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
This commit is contained in:
Allan Stephens 2011-10-24 13:27:31 -04:00 committed by Paul Gortmaker
parent 2b78f9a002
commit 9157bafb44
1 changed files with 4 additions and 4 deletions
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8
net/tipc/bcast.c
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@ -424,11 +424,11 @@ int tipc_bclink_send_msg(struct sk_buff *buf)
}
res = tipc_link_send_buf(bcl, buf);
if (likely(res > 0))
if (likely(res >= 0)) {
bclink_set_last_sent();
bcl->stats.queue_sz_counts++;
bcl->stats.accu_queue_sz += bcl->out_queue_size;
bcl->stats.queue_sz_counts++;
bcl->stats.accu_queue_sz += bcl->out_queue_size;
}
exit:
spin_unlock_bh(&bc_lock);
return res;