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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
commit af65bdfce9
20 changed files with 47 additions and 34 deletions
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2
kernel/audit.c
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@ -795,7 +795,7 @@ static int __init audit_init(void)
printk(KERN_INFO "audit: initializing netlink socket (%s)\n",
audit_default ? "enabled" : "disabled");
audit_sock = netlink_kernel_create(NETLINK_AUDIT, 0, audit_receive,
THIS_MODULE);
NULL, THIS_MODULE);
if (!audit_sock)
audit_panic("cannot initialize netlink socket");
else