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 #include <linux/errseq.h>
  14
  15 DECLARE_EVENT_CLASS(mm_filemap_op_page_cache,
  16
  17         TP_PROTO(struct page *page),
  18
  19         TP_ARGS(page),
  20
  21         TP_STRUCT__entry(
  22                 __field(unsigned long, pfn)
  23                 __field(unsigned long, i_ino)
  24                 __field(unsigned long, index)
  25                 __field(dev_t, s_dev)
  26         ),
  27
  28         TP_fast_assign(
  29                 __entry->pfn = page_to_pfn(page);
  30                 __entry->i_ino = page->mapping->host->i_ino;
  31                 __entry->index = page->index;
  32                 if (page->mapping->host->i_sb)
  33                         __entry->s_dev = page->mapping->host->i_sb->s_dev;
  34                 else
  35                         __entry->s_dev = page->mapping->host->i_rdev;
  36         ),
  37
  38         TP_printk("dev %d:%d ino %lx page=%p pfn=%lu ofs=%lu",
  39                 MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
  40                 __entry->i_ino,
  41                 pfn_to_page(__entry->pfn),
  42                 __entry->pfn,
  43                 __entry->index << PAGE_SHIFT)
  44 );
  45
  46 DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache,
  47         TP_PROTO(struct page *page),
  48         TP_ARGS(page)
  49         );
  50
  51 DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_add_to_page_cache,
  52         TP_PROTO(struct page *page),
  53         TP_ARGS(page)
  54         );
  55
  56 TRACE_EVENT(filemap_set_wb_err,
  57                 TP_PROTO(struct address_space *mapping, errseq_t eseq),
  58
  59                 TP_ARGS(mapping, eseq),
  60
  61                 TP_STRUCT__entry(
  62                         __field(unsigned long, i_ino)
  63                         __field(dev_t, s_dev)
  64                         __field(errseq_t, errseq)
  65                 ),
  66
  67                 TP_fast_assign(
  68                         __entry->i_ino = mapping->host->i_ino;
  69                         __entry->errseq = eseq;
  70                         if (mapping->host->i_sb)
  71                                 __entry->s_dev = mapping->host->i_sb->s_dev;
  72                         else
  73                                 __entry->s_dev = mapping->host->i_rdev;
  74                 ),
  75
  76                 TP_printk("dev=%d:%d ino=0x%lx errseq=0x%x",
  77                         MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
  78                         __entry->i_ino, __entry->errseq)
  79 );
  80
  81 TRACE_EVENT(file_check_and_advance_wb_err,
  82                 TP_PROTO(struct file *file, errseq_t old),
  83
  84                 TP_ARGS(file, old),
  85
  86                 TP_STRUCT__entry(
  87                         __field(struct file *, file);
  88                         __field(unsigned long, i_ino)
  89                         __field(dev_t, s_dev)
  90                         __field(errseq_t, old)
  91                         __field(errseq_t, new)
  92                 ),
  93
  94                 TP_fast_assign(
  95                         __entry->file = file;
  96                         __entry->i_ino = file->f_mapping->host->i_ino;
  97                         if (file->f_mapping->host->i_sb)
  98                                 __entry->s_dev =
  99                                         file->f_mapping->host->i_sb->s_dev;
 100                         else
 101                                 __entry->s_dev =
 102                                         file->f_mapping->host->i_rdev;
 103                         __entry->old = old;
 104                         __entry->new = file->f_wb_err;
 105                 ),
 106
 107                 TP_printk("file=%p dev=%d:%d ino=0x%lx old=0x%x new=0x%x",
 108                         __entry->file, MAJOR(__entry->s_dev),
 109                         MINOR(__entry->s_dev), __entry->i_ino, __entry->old,
 110                         __entry->new)
 111 );
 112 #endif /* _TRACE_FILEMAP_H */
 113
 114 /* This part must be outside protection */
 115 #include <trace/define_trace.h>