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authorEric Dumazet <dada1@cosmosbay.com>2008-06-17 21:04:56 -0700
committerDavid S. Miller <davem@davemloft.net>2008-06-17 21:04:56 -0700
commitcb61cb9b8b5ef6c2697d84e5015e314626eb2fba (patch)
tree430dd8d5b56d0a9911750ffcbd97563ce68d1b27 /include/net/sock.h
parentfe2c802ab62aa63d276deafa905875f3455f2621 (diff)
downloadop-kernel-dev-cb61cb9b8b5ef6c2697d84e5015e314626eb2fba.zip
op-kernel-dev-cb61cb9b8b5ef6c2697d84e5015e314626eb2fba.tar.gz
udp: sk_drops handling
In commits 33c732c36169d7022ad7d6eb474b0c9be43a2dc1 ([IPV4]: Add raw drops counter) and a92aa318b4b369091fd80433c80e62838db8bc1c ([IPV6]: Add raw drops counter), Wang Chen added raw drops counter for /proc/net/raw & /proc/net/raw6 This patch adds this capability to UDP sockets too (/proc/net/udp & /proc/net/udp6). This means that 'RcvbufErrors' errors found in /proc/net/snmp can be also be examined for each udp socket. # grep Udp: /proc/net/snmp Udp: InDatagrams NoPorts InErrors OutDatagrams RcvbufErrors SndbufErrors Udp: 23971006 75 899420 16390693 146348 0 # cat /proc/net/udp sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt --- uid timeout inode ref pointer drops 75: 00000000:02CB 00000000:0000 07 00000000:00000000 00:00000000 00000000 --- 0 0 2358 2 ffff81082a538c80 0 111: 00000000:006F 00000000:0000 07 00000000:00000000 00:00000000 00000000 --- 0 0 2286 2 ffff81042dd35c80 146348 In this example, only port 111 (0x006F) was flooded by messages that user program could not read fast enough. 146348 messages were lost. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sock.h')
-rw-r--r--include/net/sock.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 83f74b1..a7c3041 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -166,7 +166,7 @@ struct sock_common {
* @sk_err: last error
* @sk_err_soft: errors that don't cause failure but are the cause of a
* persistent failure not just 'timed out'
- * @sk_drops: raw drops counter
+ * @sk_drops: raw/udp drops counter
* @sk_ack_backlog: current listen backlog
* @sk_max_ack_backlog: listen backlog set in listen()
* @sk_priority: %SO_PRIORITY setting
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