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>