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

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