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| author | Eric Dumazet <edumazet@google.com> | 2014-10-01 15:27:15 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-01 21:27:23 -0400 |
| commit | ce1a4ea3f125863bfbcb1afb76590ee2b7b93fbf (patch) | |
| tree | 5efaaa29736600ab06f5c4ed27af855fb543de13 /drivers/net/ethernet/freescale | |
| parent | e500f488c27659bb6f5d313b336621f3daa67701 (diff) | |
| download | blackbird-op-linux-ce1a4ea3f125863bfbcb1afb76590ee2b7b93fbf.tar.gz blackbird-op-linux-ce1a4ea3f125863bfbcb1afb76590ee2b7b93fbf.zip | |
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>
Diffstat (limited to 'drivers/net/ethernet/freescale')
0 files changed, 0 insertions, 0 deletions
