mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-14 15:54:15 +08:00
d9bac032ac
Convert to use iostat_lat_type as parameter instead of raw number.
BTW, move NUM_PREALLOC_IOSTAT_CTXS to the header file, adjust
iostat_lat[{0,1,2}] to iostat_lat[{READ_IO,WRITE_SYNC_IO,WRITE_ASYNC_IO}]
in tracepoint function, and rename iotype to page_type to match the definition.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright 2021 Google LLC
|
|
* Author: Daeho Jeong <daehojeong@google.com>
|
|
*/
|
|
#ifndef __F2FS_IOSTAT_H__
|
|
#define __F2FS_IOSTAT_H__
|
|
|
|
struct bio_post_read_ctx;
|
|
|
|
enum iostat_lat_type {
|
|
READ_IO = 0,
|
|
WRITE_SYNC_IO,
|
|
WRITE_ASYNC_IO,
|
|
MAX_IO_TYPE,
|
|
};
|
|
|
|
#ifdef CONFIG_F2FS_IOSTAT
|
|
|
|
#define NUM_PREALLOC_IOSTAT_CTXS 128
|
|
#define DEFAULT_IOSTAT_PERIOD_MS 3000
|
|
#define MIN_IOSTAT_PERIOD_MS 100
|
|
/* maximum period of iostat tracing is 1 day */
|
|
#define MAX_IOSTAT_PERIOD_MS 8640000
|
|
|
|
struct iostat_lat_info {
|
|
unsigned long sum_lat[MAX_IO_TYPE][NR_PAGE_TYPE]; /* sum of io latencies */
|
|
unsigned long peak_lat[MAX_IO_TYPE][NR_PAGE_TYPE]; /* peak io latency */
|
|
unsigned int bio_cnt[MAX_IO_TYPE][NR_PAGE_TYPE]; /* bio count */
|
|
};
|
|
|
|
extern int __maybe_unused iostat_info_seq_show(struct seq_file *seq,
|
|
void *offset);
|
|
extern void f2fs_reset_iostat(struct f2fs_sb_info *sbi);
|
|
extern void f2fs_update_iostat(struct f2fs_sb_info *sbi, struct inode *inode,
|
|
enum iostat_type type, unsigned long long io_bytes);
|
|
|
|
struct bio_iostat_ctx {
|
|
struct f2fs_sb_info *sbi;
|
|
unsigned long submit_ts;
|
|
enum page_type type;
|
|
struct bio_post_read_ctx *post_read_ctx;
|
|
};
|
|
|
|
static inline void iostat_update_submit_ctx(struct bio *bio,
|
|
enum page_type type)
|
|
{
|
|
struct bio_iostat_ctx *iostat_ctx = bio->bi_private;
|
|
|
|
iostat_ctx->submit_ts = jiffies;
|
|
iostat_ctx->type = type;
|
|
}
|
|
|
|
static inline struct bio_post_read_ctx *get_post_read_ctx(struct bio *bio)
|
|
{
|
|
struct bio_iostat_ctx *iostat_ctx = bio->bi_private;
|
|
|
|
return iostat_ctx->post_read_ctx;
|
|
}
|
|
|
|
extern void iostat_update_and_unbind_ctx(struct bio *bio);
|
|
extern void iostat_alloc_and_bind_ctx(struct f2fs_sb_info *sbi,
|
|
struct bio *bio, struct bio_post_read_ctx *ctx);
|
|
extern int f2fs_init_iostat_processing(void);
|
|
extern void f2fs_destroy_iostat_processing(void);
|
|
extern int f2fs_init_iostat(struct f2fs_sb_info *sbi);
|
|
extern void f2fs_destroy_iostat(struct f2fs_sb_info *sbi);
|
|
#else
|
|
static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi, struct inode *inode,
|
|
enum iostat_type type, unsigned long long io_bytes) {}
|
|
static inline void iostat_update_and_unbind_ctx(struct bio *bio) {}
|
|
static inline void iostat_alloc_and_bind_ctx(struct f2fs_sb_info *sbi,
|
|
struct bio *bio, struct bio_post_read_ctx *ctx) {}
|
|
static inline void iostat_update_submit_ctx(struct bio *bio,
|
|
enum page_type type) {}
|
|
static inline struct bio_post_read_ctx *get_post_read_ctx(struct bio *bio)
|
|
{
|
|
return bio->bi_private;
|
|
}
|
|
static inline int f2fs_init_iostat_processing(void) { return 0; }
|
|
static inline void f2fs_destroy_iostat_processing(void) {}
|
|
static inline int f2fs_init_iostat(struct f2fs_sb_info *sbi) { return 0; }
|
|
static inline void f2fs_destroy_iostat(struct f2fs_sb_info *sbi) {}
|
|
#endif
|
|
#endif /* __F2FS_IOSTAT_H__ */
|