Release 4.12 include/trace/events/page_ref.h

#undef TRACE_SYSTEM

#define TRACE_SYSTEM page_ref

#if !defined(_TRACE_PAGE_REF_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_PAGE_REF_H

#include <linux/types.h>
#include <linux/page_ref.h>
#include <linux/tracepoint.h>
#include <trace/events/mmflags.h>

DECLARE_EVENT_CLASS(page_ref_mod_template,

	TP_PROTO(struct page *page, int v),

	TP_ARGS(page, v),

	TP_STRUCT__entry(
                __field(unsigned long, pfn)
                __field(unsigned long, flags)
                __field(int, count)
                __field(int, mapcount)
                __field(void *, mapping)
                __field(int, mt)
                __field(int, val)
        ),

	TP_fast_assign(
                __entry->pfn = page_to_pfn(page);
                __entry->flags = page->flags;
                __entry->count = page_ref_count(page);
                __entry->mapcount = page_mapcount(page);
                __entry->mapping = page->mapping;
                __entry->mt = get_pageblock_migratetype(page);
                __entry->val = v;
        ),

	TP_printk("pfn=0x%lx flags=%s count=%d mapcount=%d mapping=%p mt=%d val=%d",
                __entry->pfn,
                show_page_flags(__entry->flags & ((1UL << NR_PAGEFLAGS) - 1)),
                __entry->count,
                __entry->mapcount, __entry->mapping, __entry->mt,
                __entry->val)
);

DEFINE_EVENT(page_ref_mod_template, page_ref_set,

	TP_PROTO(struct page *page, int v),

	TP_ARGS(page, v)
);

DEFINE_EVENT(page_ref_mod_template, page_ref_mod,

	TP_PROTO(struct page *page, int v),

	TP_ARGS(page, v)
);

DECLARE_EVENT_CLASS(page_ref_mod_and_test_template,

	TP_PROTO(struct page *page, int v, int ret),

	TP_ARGS(page, v, ret),

	TP_STRUCT__entry(
                __field(unsigned long, pfn)
                __field(unsigned long, flags)
                __field(int, count)
                __field(int, mapcount)
                __field(void *, mapping)
                __field(int, mt)
                __field(int, val)
                __field(int, ret)
        ),

	TP_fast_assign(
                __entry->pfn = page_to_pfn(page);
                __entry->flags = page->flags;
                __entry->count = page_ref_count(page);
                __entry->mapcount = page_mapcount(page);
                __entry->mapping = page->mapping;
                __entry->mt = get_pageblock_migratetype(page);
                __entry->val = v;
                __entry->ret = ret;
        ),

	TP_printk("pfn=0x%lx flags=%s count=%d mapcount=%d mapping=%p mt=%d val=%d ret=%d",
                __entry->pfn,
                show_page_flags(__entry->flags & ((1UL << NR_PAGEFLAGS) - 1)),
                __entry->count,
                __entry->mapcount, __entry->mapping, __entry->mt,
                __entry->val, __entry->ret)
);

DEFINE_EVENT(page_ref_mod_and_test_template, page_ref_mod_and_test,

	TP_PROTO(struct page *page, int v, int ret),

	TP_ARGS(page, v, ret)
);

DEFINE_EVENT(page_ref_mod_and_test_template, page_ref_mod_and_return,

	TP_PROTO(struct page *page, int v, int ret),

	TP_ARGS(page, v, ret)
);

DEFINE_EVENT(page_ref_mod_and_test_template, page_ref_mod_unless,

	TP_PROTO(struct page *page, int v, int ret),

	TP_ARGS(page, v, ret)
);

DEFINE_EVENT(page_ref_mod_and_test_template, page_ref_freeze,

	TP_PROTO(struct page *page, int v, int ret),

	TP_ARGS(page, v, ret)
);

DEFINE_EVENT(page_ref_mod_template, page_ref_unfreeze,

	TP_PROTO(struct page *page, int v),

	TP_ARGS(page, v)
);

#endif /* _TRACE_PAGE_COUNT_H */

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

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