mctp: locking, lifetime and validity changes for sk_keys
We will want to invalidate sk_keys in a future change, which will require a boolean flag to mark invalidated items in the socket & net namespace lists. We'll also need to take a reference to keys, held over non-atomic contexts, so we need a refcount on keys also. This change adds a validity flag (currently always true) and refcount to struct mctp_sk_key. With a refcount on the keys, using RCU no longer makes much sense; we have exact indications on the lifetime of keys. So, we also change the RCU list traversal to a locked implementation. Signed-off-by:Jeremy Kerr <jk@codeconstruct.com.au> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
1f6c77ac
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