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[IPV6]: The ifa lock is a BH lock

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The ifa lock is expected to be taken in BH context (by addrconf timers)
so we must disable BH when accessing it from user context.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu 2006-08-09 16:52:04 -07:00 committed by David S. Miller
parent 79860a9a79
commit 06aebfb7fa
1 changed files with 2 additions and 2 deletions
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4
net/ipv6/addrconf.c
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@ -1909,11 +1909,11 @@ static int inet6_addr_add(int ifindex, struct in6_addr *pfx, int plen,
ifp = ipv6_add_addr(idev, pfx, plen, scope, ifa_flags);
if (!IS_ERR(ifp)) {
spin_lock(&ifp->lock);
spin_lock_bh(&ifp->lock);
ifp->valid_lft = valid_lft;
ifp->prefered_lft = prefered_lft;
ifp->tstamp = jiffies;
spin_unlock(&ifp->lock);
spin_unlock_bh(&ifp->lock);
addrconf_dad_start(ifp, 0);
in6_ifa_put(ifp);