fs/iomap/trace.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (c) 2009-2019 Christoph Hellwig
   4  *
   5  * NOTE: none of these tracepoints shall be consider a stable kernel ABI
   6  * as they can change at any time.
   7  */
   8 #undef TRACE_SYSTEM
   9 #define TRACE_SYSTEM iomap
  10
  11 #if !defined(_IOMAP_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
  12 #define _IOMAP_TRACE_H
  13
  14 #include <linux/tracepoint.h>
  15
  16 struct inode;
  17
  18 DECLARE_EVENT_CLASS(iomap_readpage_class,
  19         TP_PROTO(struct inode *inode, int nr_pages),
  20         TP_ARGS(inode, nr_pages),
  21         TP_STRUCT__entry(
  22                 __field(dev_t, dev)
  23                 __field(u64, ino)
  24                 __field(int, nr_pages)
  25         ),
  26         TP_fast_assign(
  27                 __entry->dev = inode->i_sb->s_dev;
  28                 __entry->ino = inode->i_ino;
  29                 __entry->nr_pages = nr_pages;
  30         ),
  31         TP_printk("dev %d:%d ino 0x%llx nr_pages %d",
  32                   MAJOR(__entry->dev), MINOR(__entry->dev),
  33                   __entry->ino,
  34                   __entry->nr_pages)
  35 )
  36
  37 #define DEFINE_READPAGE_EVENT(name)             \
  38 DEFINE_EVENT(iomap_readpage_class, name,        \
  39         TP_PROTO(struct inode *inode, int nr_pages), \
  40         TP_ARGS(inode, nr_pages))
  41 DEFINE_READPAGE_EVENT(iomap_readpage);
  42 DEFINE_READPAGE_EVENT(iomap_readpages);
  43
  44 DECLARE_EVENT_CLASS(iomap_page_class,
  45         TP_PROTO(struct inode *inode, struct page *page, unsigned long off,
  46                  unsigned int len),
  47         TP_ARGS(inode, page, off, len),
  48         TP_STRUCT__entry(
  49                 __field(dev_t, dev)
  50                 __field(u64, ino)
  51                 __field(pgoff_t, pgoff)
  52                 __field(loff_t, size)
  53                 __field(unsigned long, offset)
  54                 __field(unsigned int, length)
  55         ),
  56         TP_fast_assign(
  57                 __entry->dev = inode->i_sb->s_dev;
  58                 __entry->ino = inode->i_ino;
  59                 __entry->pgoff = page_offset(page);
  60                 __entry->size = i_size_read(inode);
  61                 __entry->offset = off;
  62                 __entry->length = len;
  63         ),
  64         TP_printk("dev %d:%d ino 0x%llx pgoff 0x%lx size 0x%llx offset %lx "
  65                   "length %x",
  66                   MAJOR(__entry->dev), MINOR(__entry->dev),
  67                   __entry->ino,
  68                   __entry->pgoff,
  69                   __entry->size,
  70                   __entry->offset,
  71                   __entry->length)
  72 )
  73
  74 #define DEFINE_PAGE_EVENT(name)         \
  75 DEFINE_EVENT(iomap_page_class, name,    \
  76         TP_PROTO(struct inode *inode, struct page *page, unsigned long off, \
  77                  unsigned int len),     \
  78         TP_ARGS(inode, page, off, len))
  79 DEFINE_PAGE_EVENT(iomap_releasepage);
  80 DEFINE_PAGE_EVENT(iomap_invalidatepage);
  81
  82 #endif /* _IOMAP_TRACE_H */
  83
  84 #undef TRACE_INCLUDE_PATH
  85 #define TRACE_INCLUDE_PATH .
  86 #define TRACE_INCLUDE_FILE trace
  87 #include <trace/define_trace.h>