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

   1#undef TRACE_SYSTEM
   2#define TRACE_SYSTEM filemap
   3
   4#if !defined(_TRACE_FILEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
   5#define _TRACE_FILEMAP_H
   6
   7#include <linux/types.h>
   8#include <linux/tracepoint.h>
   9#include <linux/mm.h>
  10#include <linux/memcontrol.h>
  11#include <linux/device.h>
  12#include <linux/kdev_t.h>
  13
  14DECLARE_EVENT_CLASS(mm_filemap_op_page_cache,
  15
  16        TP_PROTO(struct page *page),
  17
  18        TP_ARGS(page),
  19
  20        TP_STRUCT__entry(
  21                __field(unsigned long, pfn)
  22                __field(unsigned long, i_ino)
  23                __field(unsigned long, index)
  24                __field(dev_t, s_dev)
  25        ),
  26
  27        TP_fast_assign(
  28                __entry->pfn = page_to_pfn(page);
  29                __entry->i_ino = page->mapping->host->i_ino;
  30                __entry->index = page->index;
  31                if (page->mapping->host->i_sb)
  32                        __entry->s_dev = page->mapping->host->i_sb->s_dev;
  33                else
  34                        __entry->s_dev = page->mapping->host->i_rdev;
  35        ),
  36
  37        TP_printk("dev %d:%d ino %lx page=%p pfn=%lu ofs=%lu",
  38                MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
  39                __entry->i_ino,
  40                pfn_to_page(__entry->pfn),
  41                __entry->pfn,
  42                __entry->index << PAGE_SHIFT)
  43);
  44
  45DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache,
  46        TP_PROTO(struct page *page),
  47        TP_ARGS(page)
  48        );
  49
  50DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_add_to_page_cache,
  51        TP_PROTO(struct page *page),
  52        TP_ARGS(page)
  53        );
  54
  55#endif /* _TRACE_FILEMAP_H */
  56
  57/* This part must be outside protection */
  58#include <trace/define_trace.h>
  59