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[NETLINK]: Switch cb_lock spinlock to mutex and allow to override it

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Switch cb_lock to mutex and allow netlink kernel users to override it
with a subsystem specific mutex for consistent locking in dump callbacks.
All netlink_dump_start users have been audited not to rely on any
side-effects of the previously used spinlock.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy
2007-04-20 14:14:21 -07:00
committed by David S. Miller
parent b076deb849
commit af65bdfce9
20 changed files with 47 additions and 34 deletions
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net/netfilter/nfnetlink.c
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@@ -265,7 +265,7 @@ static int __init nfnetlink_init(void)
printk("Netfilter messages via NETLINK v%s.\n", nfversion);
nfnl = netlink_kernel_create(NETLINK_NETFILTER, NFNLGRP_MAX,
nfnetlink_rcv, THIS_MODULE);
nfnetlink_rcv, NULL, THIS_MODULE);
if (!nfnl) {
printk(KERN_ERR "cannot initialize nfnetlink!\n");
return -1;