linux/fs/f2fs/iostat.c

// SPDX-License-Identifier: GPL-2.0
/*
 * f2fs iostat support
 *
 * Copyright 2021 Google LLC
 * Author: Daeho Jeong <[email protected]>
 */

#include <linux/fs.h>
#include <linux/f2fs_fs.h>
#include <linux/seq_file.h>

#include "f2fs.h"
#include "iostat.h"
#include <trace/events/f2fs.h>

static struct kmem_cache *bio_iostat_ctx_cache;
static mempool_t *bio_iostat_ctx_pool;

static inline unsigned long long iostat_get_avg_bytes(struct f2fs_sb_info *sbi,
	enum iostat_type type)
{ … }

#define IOSTAT_INFO_SHOW(name, type) …

int __maybe_unused iostat_info_seq_show(struct seq_file *seq, void *offset)
{ … }

static inline void __record_iostat_latency(struct f2fs_sb_info *sbi)
{ … }

static inline void f2fs_record_iostat(struct f2fs_sb_info *sbi)
{ … }

void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
{ … }

static inline void __f2fs_update_iostat(struct f2fs_sb_info *sbi,
			enum iostat_type type, unsigned long long io_bytes)
{ … }

void f2fs_update_iostat(struct f2fs_sb_info *sbi, struct inode *inode,
			enum iostat_type type, unsigned long long io_bytes)
{ … }

static inline void __update_iostat_latency(struct bio_iostat_ctx *iostat_ctx,
				enum iostat_lat_type lat_type)
{ … }

void iostat_update_and_unbind_ctx(struct bio *bio)
{ … }

void iostat_alloc_and_bind_ctx(struct f2fs_sb_info *sbi,
		struct bio *bio, struct bio_post_read_ctx *ctx)
{ … }

int __init f2fs_init_iostat_processing(void)
{ … }

void f2fs_destroy_iostat_processing(void)
{ … }

int f2fs_init_iostat(struct f2fs_sb_info *sbi)
{ … }

void f2fs_destroy_iostat(struct f2fs_sb_info *sbi)
{ … }