events/filemap.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM filemap
   4
   5 #if !defined(_TRACE_FILEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define _TRACE_FILEMAP_H
   7
   8 #include <linux/types.h>
   9 #include <linux/tracepoint.h>
  10 #include <linux/mm.h>
  11 #include <linux/memcontrol.h>
  12 #include <linux/device.h>
  13 #include <linux/kdev_t.h>
  14 #include <linux/errseq.h>
  15
  16 DECLARE_EVENT_CLASS(mm_filemap_op_page_cache,
  17
  18         TP_PROTO(struct folio *folio),
  19
  20         TP_ARGS(folio),
  21
  22         TP_STRUCT__entry(
  23                 __field(unsigned long, pfn)
  24                 __field(unsigned long, i_ino)
  25                 __field(unsigned long, index)
  26                 __field(dev_t, s_dev)
  27                 __field(unsigned char, order)
  28         ),
  29
  30         TP_fast_assign(
  31                 __entry->pfn = folio_pfn(folio);
  32                 __entry->i_ino = folio->mapping->host->i_ino;
  33                 __entry->index = folio->index;
  34                 if (folio->mapping->host->i_sb)
  35                         __entry->s_dev = folio->mapping->host->i_sb->s_dev;
  36                 else
  37                         __entry->s_dev = folio->mapping->host->i_rdev;
  38                 __entry->order = folio_order(folio);
  39         ),
  40
  41         TP_printk("dev %d:%d ino %lx pfn=0x%lx ofs=%lu order=%u",
  42                 MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
  43                 __entry->i_ino,
  44                 __entry->pfn,
  45                 __entry->index << PAGE_SHIFT,
  46                 __entry->order)
  47 );
  48
  49 DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache,
  50         TP_PROTO(struct folio *folio),
  51         TP_ARGS(folio)
  52         );
  53
  54 DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_add_to_page_cache,
  55         TP_PROTO(struct folio *folio),
  56         TP_ARGS(folio)
  57         );
  58
  59 TRACE_EVENT(filemap_set_wb_err,
  60                 TP_PROTO(struct address_space *mapping, errseq_t eseq),
  61
  62                 TP_ARGS(mapping, eseq),
  63
  64                 TP_STRUCT__entry(
  65                         __field(unsigned long, i_ino)
  66                         __field(dev_t, s_dev)
  67                         __field(errseq_t, errseq)
  68                 ),
  69
  70                 TP_fast_assign(
  71                         __entry->i_ino = mapping->host->i_ino;
  72                         __entry->errseq = eseq;
  73                         if (mapping->host->i_sb)
  74                                 __entry->s_dev = mapping->host->i_sb->s_dev;
  75                         else
  76                                 __entry->s_dev = mapping->host->i_rdev;
  77                 ),
  78
  79                 TP_printk("dev=%d:%d ino=0x%lx errseq=0x%x",
  80                         MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
  81                         __entry->i_ino, __entry->errseq)
  82 );
  83
  84 TRACE_EVENT(file_check_and_advance_wb_err,
  85                 TP_PROTO(struct file *file, errseq_t old),
  86
  87                 TP_ARGS(file, old),
  88
  89                 TP_STRUCT__entry(
  90                         __field(struct file *, file)
  91                         __field(unsigned long, i_ino)
  92                         __field(dev_t, s_dev)
  93                         __field(errseq_t, old)
  94                         __field(errseq_t, new)
  95                 ),
  96
  97                 TP_fast_assign(
  98                         __entry->file = file;
  99                         __entry->i_ino = file->f_mapping->host->i_ino;
 100                         if (file->f_mapping->host->i_sb)
 101                                 __entry->s_dev =
 102                                         file->f_mapping->host->i_sb->s_dev;
 103                         else
 104                                 __entry->s_dev =
 105                                         file->f_mapping->host->i_rdev;
 106                         __entry->old = old;
 107                         __entry->new = file->f_wb_err;
 108                 ),
 109
 110                 TP_printk("file=%p dev=%d:%d ino=0x%lx old=0x%x new=0x%x",
 111                         __entry->file, MAJOR(__entry->s_dev),
 112                         MINOR(__entry->s_dev), __entry->i_ino, __entry->old,
 113                         __entry->new)
 114 );
 115 #endif /* _TRACE_FILEMAP_H */
 116
 117 /* This part must be outside protection */
 118 #include <trace/define_trace.h>