1#undef TRACE_SYSTEM
 2#define TRACE_SYSTEM filemap
 3
 4#if !defined(_TRACE_FILEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
 5#define _TRACE_FILEMAP_H
 6
 7#include <linux/types.h>
 8#include <linux/tracepoint.h>
 9#include <linux/mm.h>
10#include <linux/memcontrol.h>
11#include <linux/device.h>
12#include <linux/kdev_t.h>
13
14DECLARE_EVENT_CLASS(mm_filemap_op_page_cache,
15
16	TP_PROTO(struct page *page),
17
18	TP_ARGS(page),
19
20	TP_STRUCT__entry(
21		__field(struct page *, page)
22		__field(unsigned long, i_ino)
23		__field(unsigned long, index)
24		__field(dev_t, s_dev)
25	),
26
27	TP_fast_assign(
28		__entry->page = page;
29		__entry->i_ino = page->mapping->host->i_ino;
30		__entry->index = page->index;
31		if (page->mapping->host->i_sb)
32			__entry->s_dev = page->mapping->host->i_sb->s_dev;
33		else
34			__entry->s_dev = page->mapping->host->i_rdev;
35	),
36
37	TP_printk("dev %d:%d ino %lx page=%p pfn=%lu ofs=%lu",
38		MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
39		__entry->i_ino,
40		__entry->page,
41		page_to_pfn(__entry->page),
42		__entry->index << PAGE_SHIFT)
43);
44
45DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache,
46	TP_PROTO(struct page *page),
47	TP_ARGS(page)
48	);
49
50DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_add_to_page_cache,
51	TP_PROTO(struct page *page),
52	TP_ARGS(page)
53	);
54
55#endif /* _TRACE_FILEMAP_H */
56
57/* This part must be outside protection */
58#include <trace/define_trace.h>