Viewing file:  page_ref.h (2.96 KB) -rw-r--r--
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/* SPDX-License-Identifier: GPL-2.0 */
#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 & PAGEFLAGS_MASK),
__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 & PAGEFLAGS_MASK),
__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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