46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
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/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
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/*
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* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
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*/
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#undef TRACE_SYSTEM
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#define TRACE_INCLUDE_PATH .
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#define TRACE_SYSTEM lowmemorykiller
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#if !defined(_TRACE_LOWMEMORYKILLER_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_LOWMEMORYKILLER_H
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#include <linux/tracepoint.h>
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TRACE_EVENT(lowmemory_kill,
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TP_PROTO(struct task_struct *killed_task, long cache_size, long cache_limit, long free),
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TP_ARGS(killed_task, cache_size, cache_limit, free),
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TP_STRUCT__entry(
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__array(char, comm, TASK_COMM_LEN)
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__field(pid_t, pid)
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__field(long, pagecache_size)
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__field(long, pagecache_limit)
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__field(long, free)
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),
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TP_fast_assign(
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memcpy(__entry->comm, killed_task->comm, TASK_COMM_LEN);
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__entry->pid = killed_task->pid;
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__entry->pagecache_size = cache_size;
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__entry->pagecache_limit = cache_limit;
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__entry->free = free;
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),
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TP_printk("%s (%d), page cache %ldkB (limit %ldkB), free %ldKb",
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__entry->comm, __entry->pid, __entry->pagecache_size,
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__entry->pagecache_limit, __entry->free)
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);
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#endif /* if !defined(_TRACE_LOWMEMORYKILLER_H) || defined(TRACE_HEADER_MULTI_READ) */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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