readahead.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2#undef TRACE_SYSTEM
  3#define TRACE_SYSTEM readahead
  4
  5#if !defined(_TRACE_FILEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
  6#define _TRACE_READAHEAD_H
  7
  8#include <linux/types.h>
  9#include <linux/tracepoint.h>
 10#include <linux/mm.h>
 11#include <linux/fs.h>
 12#include <linux/pagemap.h>
 13
 14TRACE_EVENT(page_cache_ra_unbounded,
 15	TP_PROTO(struct inode *inode, pgoff_t index, unsigned long nr_to_read,
 16		 unsigned long lookahead_size),
 17
 18	TP_ARGS(inode, index, nr_to_read, lookahead_size),
 19
 20	TP_STRUCT__entry(
 21		__field(unsigned long, i_ino)
 22		__field(dev_t, s_dev)
 23		__field(pgoff_t, index)
 24		__field(unsigned long, nr_to_read)
 25		__field(unsigned long, lookahead_size)
 26	),
 27
 28	TP_fast_assign(
 29		__entry->i_ino = inode->i_ino;
 30		__entry->s_dev = inode->i_sb->s_dev;
 31		__entry->index = index;
 32		__entry->nr_to_read = nr_to_read;
 33		__entry->lookahead_size = lookahead_size;
 34	),
 35
 36	TP_printk(
 37		"dev=%d:%d ino=%lx index=%lu nr_to_read=%lu lookahead_size=%lu",
 38		MAJOR(__entry->s_dev), MINOR(__entry->s_dev), __entry->i_ino,
 39		__entry->index, __entry->nr_to_read, __entry->lookahead_size
 40	)
 41);
 42
 43TRACE_EVENT(page_cache_ra_order,
 44	TP_PROTO(struct inode *inode, pgoff_t index, struct file_ra_state *ra),
 45
 46	TP_ARGS(inode, index, ra),
 47
 48	TP_STRUCT__entry(
 49		__field(unsigned long, i_ino)
 50		__field(dev_t, s_dev)
 51		__field(pgoff_t, index)
 52		__field(unsigned int, order)
 53		__field(unsigned int, size)
 54		__field(unsigned int, async_size)
 55		__field(unsigned int, ra_pages)
 56	),
 57
 58	TP_fast_assign(
 59		__entry->i_ino = inode->i_ino;
 60		__entry->s_dev = inode->i_sb->s_dev;
 61		__entry->index = index;
 62		__entry->order = ra->order;
 63		__entry->size = ra->size;
 64		__entry->async_size = ra->async_size;
 65		__entry->ra_pages = ra->ra_pages;
 66	),
 67
 68	TP_printk(
 69		"dev=%d:%d ino=%lx index=%lu order=%u size=%u async_size=%u ra_pages=%u",
 70		MAJOR(__entry->s_dev), MINOR(__entry->s_dev), __entry->i_ino,
 71		__entry->index, __entry->order, __entry->size,
 72		__entry->async_size, __entry->ra_pages
 73	)
 74);
 75
 76DECLARE_EVENT_CLASS(page_cache_ra_op,
 77	TP_PROTO(struct inode *inode, pgoff_t index, struct file_ra_state *ra,
 78		 unsigned long req_count),
 79
 80	TP_ARGS(inode, index, ra, req_count),
 81
 82	TP_STRUCT__entry(
 83		__field(unsigned long, i_ino)
 84		__field(dev_t, s_dev)
 85		__field(pgoff_t, index)
 86		__field(unsigned int, order)
 87		__field(unsigned int, size)
 88		__field(unsigned int, async_size)
 89		__field(unsigned int, ra_pages)
 90		__field(unsigned int, mmap_miss)
 91		__field(loff_t, prev_pos)
 92		__field(unsigned long, req_count)
 93	),
 94
 95	TP_fast_assign(
 96		__entry->i_ino = inode->i_ino;
 97		__entry->s_dev = inode->i_sb->s_dev;
 98		__entry->index = index;
 99		__entry->order = ra->order;
100		__entry->size = ra->size;
101		__entry->async_size = ra->async_size;
102		__entry->ra_pages = ra->ra_pages;
103		__entry->mmap_miss = ra->mmap_miss;
104		__entry->prev_pos = ra->prev_pos;
105		__entry->req_count = req_count;
106	),
107
108	TP_printk(
109		"dev=%d:%d ino=%lx index=%lu req_count=%lu order=%u size=%u async_size=%u ra_pages=%u mmap_miss=%u prev_pos=%lld",
110		MAJOR(__entry->s_dev), MINOR(__entry->s_dev), __entry->i_ino,
111		__entry->index, __entry->req_count, __entry->order,
112		__entry->size, __entry->async_size, __entry->ra_pages,
113		__entry->mmap_miss, __entry->prev_pos
114	)
115);
116
117DEFINE_EVENT(page_cache_ra_op, page_cache_sync_ra,
118	TP_PROTO(struct inode *inode, pgoff_t index, struct file_ra_state *ra,
119		 unsigned long req_count),
120	TP_ARGS(inode, index, ra, req_count)
121);
122
123DEFINE_EVENT(page_cache_ra_op, page_cache_async_ra,
124	TP_PROTO(struct inode *inode, pgoff_t index, struct file_ra_state *ra,
125		 unsigned long req_count),
126	TP_ARGS(inode, index, ra, req_count)
127);
128
129#endif /* _TRACE_FILEMAP_H */
130
131/* This part must be outside protection */
132#include <trace/define_trace.h>