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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-09-02 23:09:32 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-09-06 18:24:59 -0700 |
| commit | 1fd63041c49c5c6ed1fe58b7bccc2de462d51e2b (patch) | |
| tree | aac2e108e2c8c545669bd9fe655f04ac026f5e15 /drivers/net/fs_enet/fs_enet-main.c | |
| parent | 9d348af47656a65a697ff55a53daf294ea4d5662 (diff) | |
net: pskb_expand_head() optimization
pskb_expand_head() blindly takes references on fragments before calling
skb_release_data(), potentially releasing these references.
We can add a fast path, avoiding these atomic operations, if we own the
last reference on skb->head.
Based on a previous patch from David
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/fs_enet/fs_enet-main.c')
0 files changed, 0 insertions, 0 deletions