[IPV6]: The ifa lock is a BH lock
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>
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@ -1909,11 +1909,11 @@ static int inet6_addr_add(int ifindex, struct in6_addr *pfx, int plen,
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ifp = ipv6_add_addr(idev, pfx, plen, scope, ifa_flags);
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if (!IS_ERR(ifp)) {
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spin_lock(&ifp->lock);
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spin_lock_bh(&ifp->lock);
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ifp->valid_lft = valid_lft;
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ifp->prefered_lft = prefered_lft;
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ifp->tstamp = jiffies;
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spin_unlock(&ifp->lock);
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spin_unlock_bh(&ifp->lock);
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addrconf_dad_start(ifp, 0);
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in6_ifa_put(ifp);
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