LXR linux/include/trace/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
  16DECLARE_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
  49DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache,
  50        TP_PROTO(struct folio *folio),
  51        TP_ARGS(folio)
  52        );
  53
  54DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_add_to_page_cache,
  55        TP_PROTO(struct folio *folio),
  56        TP_ARGS(folio)
  57        );
  58
  59TRACE_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
  84TRACE_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>
 119