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authorPatrick McHardy <kaber@trash.net>2007-04-16 17:00:53 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:29:05 -0700
commit6313c1e0992feaee56bc09b85042b3186041fa3c (patch)
treef75cda674d8f2b62bcdb09e59f8bc7010003a91f /net/decnet/dn_dev.c
parent1c2d670f3660e9103fdcdca702f6dbf8ea7d6afb (diff)
downloadblackbird-obmc-linux-6313c1e0992feaee56bc09b85042b3186041fa3c.tar.gz
blackbird-obmc-linux-6313c1e0992feaee56bc09b85042b3186041fa3c.zip
[RTNETLINK]: Remove unnecessary locking in dump callbacks
Since we're now holding the rtnl during the entire dump operation, we can remove additional locking for rtnl protected data. This patch does that for all simple cases (dev_base_lock for dev_base walking, RCU protection for FIB rule dumping). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/decnet/dn_dev.c')
-rw-r--r--net/decnet/dn_dev.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 61be2caddc57..5c2a9951b638 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -799,7 +799,6 @@ static int dn_nl_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
skip_ndevs = cb->args[0];
skip_naddr = cb->args[1];
- read_lock(&dev_base_lock);
for (dev = dev_base, idx = 0; dev; dev = dev->next, idx++) {
if (idx < skip_ndevs)
continue;
@@ -824,8 +823,6 @@ static int dn_nl_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
}
}
done:
- read_unlock(&dev_base_lock);
-
cb->args[0] = idx;
cb->args[1] = dn_idx;
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