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>