root/include/trace/events/filemap.h

INCLUDED FROM

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