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 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
  47DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache,
  48        TP_PROTO(struct page *page),
  49        TP_ARGS(page)
  50        );
  51
  52DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_add_to_page_cache,
  53        TP_PROTO(struct page *page),
  54        TP_ARGS(page)
  55        );
  56
  57TRACE_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
  82TRACE_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>
 117