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authorHerbert Xu <herbert@gondor.apana.org.au>2005-05-03 14:43:27 -0700
committerDavid S. Miller <davem@davemloft.net>2005-05-03 14:43:27 -0700
commit96c36023434b7b6824b1da72a6b7b1ca61d7310c (patch)
tree21b46ccc9e88f5ab77e0578356ba7d86e0f5c964 /net/decnet
parent9dfa277f88388a94993b121db46b80df66f48d9e (diff)
[NETLINK]: cb_lock does not needs ref count on sk
Here is a little optimisation for the cb_lock used by netlink_dump. While fixing that race earlier, I noticed that the reference count held by cb_lock is completely useless. The reason is that in order to obtain the protection of the reference count, you have to take the cb_lock. But the only way to take the cb_lock is through dereferencing the socket. That is, you must already possess a reference count on the socket before you can take advantage of the reference count held by cb_lock. As a corollary, we can remve the reference count held by the cb_lock. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/decnet')
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