Release 4.15 include/trace/events/filemap.h

/* SPDX-License-Identifier: GPL-2.0 */

#undef TRACE_SYSTEM

#define TRACE_SYSTEM filemap

#if !defined(_TRACE_FILEMAP_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_FILEMAP_H

#include <linux/types.h>
#include <linux/tracepoint.h>
#include <linux/mm.h>
#include <linux/memcontrol.h>
#include <linux/device.h>
#include <linux/kdev_t.h>
#include <linux/errseq.h>

DECLARE_EVENT_CLASS(mm_filemap_op_page_cache,

	TP_PROTO(struct page *page),

	TP_ARGS(page),

	TP_STRUCT__entry(
                __field(unsigned long, pfn)
                __field(unsigned long, i_ino)
                __field(unsigned long, index)
                __field(dev_t, s_dev)
        ),

	TP_fast_assign(
                __entry->pfn = page_to_pfn(page);
                __entry->i_ino = page->mapping->host->i_ino;
                __entry->index = page->index;
                if (page->mapping->host->i_sb)
                        __entry->s_dev = page->mapping->host->i_sb->s_dev;
                else
                        __entry->s_dev = page->mapping->host->i_rdev;
        ),

	TP_printk("dev %d:%d ino %lx page=%p pfn=%lu ofs=%lu",
                MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
                __entry->i_ino,
                pfn_to_page(__entry->pfn),
                __entry->pfn,
                __entry->index << PAGE_SHIFT)
);

DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache,
	TP_PROTO(struct page *page),
	TP_ARGS(page)
	);

DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_add_to_page_cache,
	TP_PROTO(struct page *page),
	TP_ARGS(page)
	);

TRACE_EVENT(filemap_set_wb_err,
		TP_PROTO(struct address_space *mapping, errseq_t eseq),

		TP_ARGS(mapping, eseq),

		TP_STRUCT__entry(
                        __field(unsigned long, i_ino)
                        __field(dev_t, s_dev)
                        __field(errseq_t, errseq)
                ),

		TP_fast_assign(
                        __entry->i_ino = mapping->host->i_ino;
                        __entry->errseq = eseq;
                        if (mapping->host->i_sb)
                                __entry->s_dev = mapping->host->i_sb->s_dev;
                        else
                                __entry->s_dev = mapping->host->i_rdev;
                ),

		TP_printk("dev=%d:%d ino=0x%lx errseq=0x%x",
                        MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
                        __entry->i_ino, __entry->errseq)
);

TRACE_EVENT(file_check_and_advance_wb_err,
		TP_PROTO(struct file *file, errseq_t old),

		TP_ARGS(file, old),

		TP_STRUCT__entry(
                        __field(struct file *, file);
                        __field(unsigned long, i_ino)
                        __field(dev_t, s_dev)
                        __field(errseq_t, old)
                        __field(errseq_t, new)
                ),

		TP_fast_assign(
                        __entry->file = file;
                        __entry->i_ino = file->f_mapping->host->i_ino;
                        if (file->f_mapping->host->i_sb)
                                __entry->s_dev =
                                        file->f_mapping->host->i_sb->s_dev;
                        else
                                __entry->s_dev =
                                        file->f_mapping->host->i_rdev;
                        __entry->old = old;
                        __entry->new = file->f_wb_err;
                ),

		TP_printk("file=%p dev=%d:%d ino=0x%lx old=0x%x new=0x%x",
                        __entry->file, MAJOR(__entry->s_dev),
                        MINOR(__entry->s_dev), __entry->i_ino, __entry->old,
                        __entry->new)
);
#endif /* _TRACE_FILEMAP_H */

/* This part must be outside protection */
#include <trace/define_trace.h>
Overall Contributors
Person
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CommitProp
Robert Jarzmik
101
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Jeff Layton
37
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Namhyung Kim
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Greg Kroah-Hartman
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Directory: include/trace/events

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