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Tip revision: 0ecfebd2b52404ae0c54a878c872bb93363ada36 authored by Linus Torvalds on 07 July 2019, 22:41:56 UTC
Linux 5.2
Linux 5.2
Tip revision: 0ecfebd
trace.h
// SPDX-License-Identifier: GPL-2.0
/*
* f2fs IO tracer
*
* Copyright (c) 2014 Motorola Mobility
* Copyright (c) 2014 Jaegeuk Kim <jaegeuk@kernel.org>
*/
#ifndef __F2FS_TRACE_H__
#define __F2FS_TRACE_H__
#ifdef CONFIG_F2FS_IO_TRACE
#include <trace/events/f2fs.h>
enum file_type {
__NORMAL_FILE,
__DIR_FILE,
__NODE_FILE,
__META_FILE,
__ATOMIC_FILE,
__VOLATILE_FILE,
__MISC_FILE,
};
struct last_io_info {
int major, minor;
pid_t pid;
enum file_type type;
struct f2fs_io_info fio;
block_t len;
};
extern void f2fs_trace_pid(struct page *);
extern void f2fs_trace_ios(struct f2fs_io_info *, int);
extern void f2fs_build_trace_ios(void);
extern void f2fs_destroy_trace_ios(void);
#else
#define f2fs_trace_pid(p)
#define f2fs_trace_ios(i, n)
#define f2fs_build_trace_ios()
#define f2fs_destroy_trace_ios()
#endif
#endif /* __F2FS_TRACE_H__ */