linux/fs/f2fs/trace.h
Nishad Kamdar d29fbcdb05 f2fs: Use the correct style for SPDX License Identifier
This patch corrects the SPDX License Identifier style in
header files related to F2FS File System support.
For C header files Documentation/process/license-rules.rst
mandates C-like comments (opposed to C source files where
C++ style should be used).

Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-05-08 06:55:55 -07:00

44 lines
862 B
C

/* 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__ */