| commit | ce1a4ea3f125863bfbcb1afb76590ee2b7b93fbf | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Wed Oct 01 15:27:15 2014 -0700 |
| committer | David S. Miller <davem@davemloft.net> | Wed Oct 01 21:27:23 2014 -0400 |
| tree | 5efaaa29736600ab06f5c4ed27af855fb543de13 | |
| parent | e500f488c27659bb6f5d313b336621f3daa67701 [diff] |
net: avoid one atomic operation in skb_clone() Fast clone cloning can actually avoid an atomic_inc(), if we guarantee prior clone_ref value is 1. This requires a change kfree_skbmem(), to perform the atomic_dec_and_test() on clone_ref before setting fclone to SKB_FCLONE_UNAVAILABLE. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>