sock.h

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#undef TRACE_SYSTEM
#define TRACE_SYSTEM sock

#if !defined(_TRACE_SOCK_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SOCK_H

#include <net/sock.h>
#include <linux/tracepoint.h>

TRACE_EVENT(sock_rcvqueue_full,

    TP_PROTO(struct sock *sk, struct sk_buff *skb),

    TP_ARGS(sk, skb),

    TP_STRUCT__entry(
        __field(int, rmem_alloc)
        __field(unsigned int, truesize)
        __field(int, sk_rcvbuf)
    ),

    TP_fast_assign(
        __entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
        __entry->truesize   = skb->truesize;
        __entry->sk_rcvbuf  = sk->sk_rcvbuf;
    ),

    TP_printk("rmem_alloc=%d truesize=%u sk_rcvbuf=%d",
        __entry->rmem_alloc, __entry->truesize, __entry->sk_rcvbuf)
);

TRACE_EVENT(sock_exceed_buf_limit,

    TP_PROTO(struct sock *sk, struct proto *prot, long allocated),

    TP_ARGS(sk, prot, allocated),

    TP_STRUCT__entry(
        __array(char, name, 32)
        __field(long *, sysctl_mem)
        __field(long, allocated)
        __field(int, sysctl_rmem)
        __field(int, rmem_alloc)
    ),

    TP_fast_assign(
        strncpy(__entry->name, prot->name, 32);
        __entry->sysctl_mem = prot->sysctl_mem;
        __entry->allocated = allocated;
        __entry->sysctl_rmem = prot->sysctl_rmem[0];
        __entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
    ),

    TP_printk("proto:%s sysctl_mem=%ld,%ld,%ld allocated=%ld "
        "sysctl_rmem=%d rmem_alloc=%d",
        __entry->name,
        __entry->sysctl_mem[0],
        __entry->sysctl_mem[1],
        __entry->sysctl_mem[2],
        __entry->allocated,
        __entry->sysctl_rmem,
        __entry->rmem_alloc)
);

#endif /* _TRACE_SOCK_H */

/* This part must be outside protection */
#include <trace/define_trace.h>