Satoru Moriya 296f7ea75b udp: add tracepoints for queueing skb to rcvbuf ... This patch adds a tracepoint to __udp_queue_rcv_skb to get the return value of ip_queue_rcv_skb. It indicates why kernel drops a packet at this point. ip_queue_rcv_skb returns following values in the packet drop case: rcvbuf is full : -ENOMEM sk_filter returns error : -EINVAL, -EACCESS, -ENOMEM, etc. __sk_mem_schedule returns error: -ENOBUF Signed-off-by: Satoru Moriya <satoru.moriya@hds.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2011-06-21 16:06:10 -07:00
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events	udp: add tracepoints for queueing skb to rcvbuf	2011-06-21 16:06:10 -07:00
define_trace.h	tracing: Include module.h in define_trace.h	2011-01-07 15:44:56 -05:00
ftrace.h	tracing: Add __print_symbolic_u64 to avoid warnings on 32bit machine	2011-05-25 22:13:44 -04:00
syscall.h	tracing: Use a global field list for all syscall exit events	2010-06-28 17:12:44 -04:00