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3847ce32ae
This patch adds 2 tracepoints to get a status of a socket receive queue and related parameter. One tracepoint is added to sock_queue_rcv_skb. It records rcvbuf size and its usage. The other tracepoint is added to __sk_mem_schedule and it records limitations of memory for sockets and current usage. By using these tracepoints we're able to know detailed reason why kernel drop the packet. 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>
37 lines
862 B
C
37 lines
862 B
C
/*
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* consolidates trace point definitions
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*
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* Copyright (C) 2009 Neil Horman <nhorman@tuxdriver.com>
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*/
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/string.h>
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#include <linux/if_arp.h>
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#include <linux/inetdevice.h>
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#include <linux/inet.h>
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#include <linux/interrupt.h>
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#include <linux/netpoll.h>
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#include <linux/sched.h>
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#include <linux/delay.h>
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#include <linux/rcupdate.h>
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#include <linux/types.h>
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#include <linux/workqueue.h>
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#include <linux/netlink.h>
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#include <linux/net_dropmon.h>
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#include <linux/slab.h>
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#include <asm/unaligned.h>
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#include <asm/bitops.h>
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#define CREATE_TRACE_POINTS
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#include <trace/events/skb.h>
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#include <trace/events/net.h>
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#include <trace/events/napi.h>
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#include <trace/events/sock.h>
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#include <trace/events/udp.h>
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EXPORT_TRACEPOINT_SYMBOL_GPL(kfree_skb);
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EXPORT_TRACEPOINT_SYMBOL_GPL(napi_poll);
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