LXR linux/include/trace/events/pagemap.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#undef TRACE_SYSTEM
   3#define TRACE_SYSTEM pagemap
   4
   5#if !defined(_TRACE_PAGEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
   6#define _TRACE_PAGEMAP_H
   7
   8#include <linux/tracepoint.h>
   9#include <linux/mm.h>
  10
  11#define PAGEMAP_MAPPED          0x0001u
  12#define PAGEMAP_ANONYMOUS       0x0002u
  13#define PAGEMAP_FILE            0x0004u
  14#define PAGEMAP_SWAPCACHE       0x0008u
  15#define PAGEMAP_SWAPBACKED      0x0010u
  16#define PAGEMAP_MAPPEDDISK      0x0020u
  17#define PAGEMAP_BUFFERS         0x0040u
  18
  19#define trace_pagemap_flags(page) ( \
  20        (PageAnon(page)         ? PAGEMAP_ANONYMOUS  : PAGEMAP_FILE) | \
  21        (page_mapped(page)      ? PAGEMAP_MAPPED     : 0) | \
  22        (PageSwapCache(page)    ? PAGEMAP_SWAPCACHE  : 0) | \
  23        (PageSwapBacked(page)   ? PAGEMAP_SWAPBACKED : 0) | \
  24        (PageMappedToDisk(page) ? PAGEMAP_MAPPEDDISK : 0) | \
  25        (page_has_private(page) ? PAGEMAP_BUFFERS    : 0) \
  26        )
  27
  28TRACE_EVENT(mm_lru_insertion,
  29
  30        TP_PROTO(
  31                struct page *page,
  32                int lru
  33        ),
  34
  35        TP_ARGS(page, lru),
  36
  37        TP_STRUCT__entry(
  38                __field(struct page *,  page    )
  39                __field(unsigned long,  pfn     )
  40                __field(int,            lru     )
  41                __field(unsigned long,  flags   )
  42        ),
  43
  44        TP_fast_assign(
  45                __entry->page   = page;
  46                __entry->pfn    = page_to_pfn(page);
  47                __entry->lru    = lru;
  48                __entry->flags  = trace_pagemap_flags(page);
  49        ),
  50
  51        /* Flag format is based on page-types.c formatting for pagemap */
  52        TP_printk("page=%p pfn=%lu lru=%d flags=%s%s%s%s%s%s",
  53                        __entry->page,
  54                        __entry->pfn,
  55                        __entry->lru,
  56                        __entry->flags & PAGEMAP_MAPPED         ? "M" : " ",
  57                        __entry->flags & PAGEMAP_ANONYMOUS      ? "a" : "f",
  58                        __entry->flags & PAGEMAP_SWAPCACHE      ? "s" : " ",
  59                        __entry->flags & PAGEMAP_SWAPBACKED     ? "b" : " ",
  60                        __entry->flags & PAGEMAP_MAPPEDDISK     ? "d" : " ",
  61                        __entry->flags & PAGEMAP_BUFFERS        ? "B" : " ")
  62);
  63
  64TRACE_EVENT(mm_lru_activate,
  65
  66        TP_PROTO(struct page *page),
  67
  68        TP_ARGS(page),
  69
  70        TP_STRUCT__entry(
  71                __field(struct page *,  page    )
  72                __field(unsigned long,  pfn     )
  73        ),
  74
  75        TP_fast_assign(
  76                __entry->page   = page;
  77                __entry->pfn    = page_to_pfn(page);
  78        ),
  79
  80        /* Flag format is based on page-types.c formatting for pagemap */
  81        TP_printk("page=%p pfn=%lu", __entry->page, __entry->pfn)
  82
  83);
  84
  85#endif /* _TRACE_PAGEMAP_H */
  86
  87/* This part must be outside protection */
  88#include <trace/define_trace.h>
  89