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IPv6: remove trivial nested _bh suffix

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Don't need to disable bottom half it is already down in the
previous lock. Move some blank lines to group locking in same
context.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger 2010-02-08 19:48:52 +00:00 committed by David S. Miller
parent dc2b99f71e
commit 21809fafa0
1 changed files with 11 additions and 10 deletions
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21
net/ipv6/addrconf.c
View File

@ -2802,14 +2802,14 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
read_lock_bh(&idev->lock);
if (ifp->dead)
goto out;
spin_lock_bh(&ifp->lock);
spin_lock(&ifp->lock);
if (dev->flags&(IFF_NOARP|IFF_LOOPBACK) ||
idev->cnf.accept_dad < 1 ||
!(ifp->flags&IFA_F_TENTATIVE) ||
ifp->flags & IFA_F_NODAD) {
ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC|IFA_F_DADFAILED);
spin_unlock_bh(&ifp->lock);
spin_unlock(&ifp->lock);
read_unlock_bh(&idev->lock);
addrconf_dad_completed(ifp);
@ -2817,7 +2817,7 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
}
if (!(idev->if_flags & IF_READY)) {
spin_unlock_bh(&ifp->lock);
spin_unlock(&ifp->lock);
read_unlock_bh(&idev->lock);
/*
* If the device is not ready:
@ -2837,7 +2837,7 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
ip6_ins_rt(ifp->rt);
addrconf_dad_kick(ifp);
spin_unlock_bh(&ifp->lock);
spin_unlock(&ifp->lock);
out:
read_unlock_bh(&idev->lock);
}
@ -2853,14 +2853,15 @@ static void addrconf_dad_timer(unsigned long data)
read_unlock_bh(&idev->lock);
goto out;
}
spin_lock_bh(&ifp->lock);
spin_lock(&ifp->lock);
if (ifp->probes == 0) {
/*
* DAD was successful
*/
ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC|IFA_F_DADFAILED);
spin_unlock_bh(&ifp->lock);
spin_unlock(&ifp->lock);
read_unlock_bh(&idev->lock);
addrconf_dad_completed(ifp);
@ -2870,7 +2871,7 @@ static void addrconf_dad_timer(unsigned long data)
ifp->probes--;
addrconf_mod_timer(ifp, AC_DAD, ifp->idev->nd_parms->retrans_time);
spin_unlock_bh(&ifp->lock);
spin_unlock(&ifp->lock);
read_unlock_bh(&idev->lock);
/* send a neighbour solicitation for our addr */
@ -2918,12 +2919,12 @@ static void addrconf_dad_run(struct inet6_dev *idev) {
read_lock_bh(&idev->lock);
for (ifp = idev->addr_list; ifp; ifp = ifp->if_next) {
spin_lock_bh(&ifp->lock);
spin_lock(&ifp->lock);
if (!(ifp->flags & IFA_F_TENTATIVE)) {
spin_unlock_bh(&ifp->lock);
spin_unlock(&ifp->lock);
continue;
}
spin_unlock_bh(&ifp->lock);
spin_unlock(&ifp->lock);
addrconf_dad_kick(ifp);
}
read_unlock_bh(&idev->lock);