diff options
| author | Menglong Dong <dong.menglong@zte.com.cn> | 2020-11-05 20:49:14 -0500 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-09 15:34:44 -0800 |
| commit | a3ce2b109a59ee9670706ae8126dcc04cfe261cd (patch) | |
| tree | f048c762ceb333a0d435005cc856704802b58f52 /include/uapi/linux/if_packet.h | |
| parent | bff6f1db91e330d7fba56f815cdbc412c75fe163 (diff) | |
net: udp: introduce UDP_MIB_MEMERRORS for udp_mem
When udp_memory_allocated is at the limit, __udp_enqueue_schedule_skb
will return a -ENOBUFS, and skb will be dropped in __udp_queue_rcv_skb
without any counters being done. It's hard to find out what happened
once this happen.
So we introduce a UDP_MIB_MEMERRORS to do this job. Well, this change
looks friendly to the existing users, such as netstat:
$ netstat -u -s
Udp:
0 packets received
639 packets to unknown port received.
158689 packet receive errors
180022 packets sent
RcvbufErrors: 20930
MemErrors: 137759
UdpLite:
IpExt:
InOctets: 257426235
OutOctets: 257460598
InNoECTPkts: 181177
v2:
- Fix some alignment problems
Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
Link: https://lore.kernel.org/r/1604627354-43207-1-git-send-email-dong.menglong@zte.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/uapi/linux/if_packet.h')
0 files changed, 0 insertions, 0 deletions