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| author |   Vasily Averin <vvs@virtuozzo.com> | 2021-08-02 11:52:15 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-08-03 11:21:39 +0100 |
| commit | f1260ff15a71b8fc122b2c9abd8a7abffb6e0168 (patch) | |
| tree | 5296e2d92972ed29361756ad41d5c44d4b50f247 /net/ipv4/ip_output.c | |
| parent | Merge tag 'mlx5-updates-2021-08-02' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux (diff) | |
| download | wireguard-linux-f1260ff15a71b8fc122b2c9abd8a7abffb6e0168.tar.xz wireguard-linux-f1260ff15a71b8fc122b2c9abd8a7abffb6e0168.zip | |
skbuff: introduce skb_expand_head()
Like skb_realloc_headroom(), new helper increases headroom of specified skb.
Unlike skb_realloc_headroom(), it does not allocate a new skb if possible;
copies skb->sk on new skb when as needed and frees original skb in case
of failures.
This helps to simplify ip[6]_finish_output2() and a few other similar cases.
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_output.c')
0 files changed, 0 insertions, 0 deletions