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
  27 TRACE_EVENT(mm_lru_insertion,
  28
  29         TP_PROTO(
  30                 struct page *page,
  31                 unsigned long pfn,
  32                 int lru,
  33                 unsigned long flags
  34         ),
  35
  36         TP_ARGS(page, pfn, lru, flags),
  37
  38         TP_STRUCT__entry(
  39                 __field(struct page *,  page    )
  40                 __field(unsigned long,  pfn     )
  41                 __field(int,            lru     )
  42                 __field(unsigned long,  flags   )
  43         ),
  44
  45         TP_fast_assign(
  46                 __entry->page   = page;
  47                 __entry->pfn    = pfn;
  48                 __entry->lru    = lru;
  49                 __entry->flags  = flags;
  50         ),
  51
  52         /* Flag format is based on page-types.c formatting for pagemap */
  53         TP_printk("page=%p pfn=%lu lru=%d flags=%s%s%s%s%s%s",
  54                         __entry->page,
  55                         __entry->pfn,
  56                         __entry->lru,
  57                         __entry->flags & PAGEMAP_MAPPED         ? "M" : " ",
  58                         __entry->flags & PAGEMAP_ANONYMOUS      ? "a" : "f",
  59                         __entry->flags & PAGEMAP_SWAPCACHE      ? "s" : " ",
  60                         __entry->flags & PAGEMAP_SWAPBACKED     ? "b" : " ",
  61                         __entry->flags & PAGEMAP_MAPPEDDISK     ? "d" : " ",
  62                         __entry->flags & PAGEMAP_BUFFERS        ? "B" : " ")
  63 );
  64
  65 TRACE_EVENT(mm_lru_activate,
  66
  67         TP_PROTO(struct page *page, unsigned long pfn),
  68
  69         TP_ARGS(page, pfn),
  70
  71         TP_STRUCT__entry(
  72                 __field(struct page *,  page    )
  73                 __field(unsigned long,  pfn     )
  74         ),
  75
  76         TP_fast_assign(
  77                 __entry->page   = page;
  78                 __entry->pfn    = pfn;
  79         ),
  80
  81         /* Flag format is based on page-types.c formatting for pagemap */
  82         TP_printk("page=%p pfn=%lu", __entry->page, __entry->pfn)
  83
  84 );
  85
  86 #endif /* _TRACE_PAGEMAP_H */
  87
  88 /* This part must be outside protection */
  89 #include <trace/define_trace.h>