Viewing file:  filemap.h (2.74 KB) -rw-r--r--
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/* 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>
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