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Date: Fri, 23 Feb 2024 10:17:35 -0800
From: Jaegeuk Kim <jaegeuk@...nel.org>
To: Chao Yu <chao@...nel.org>
Cc: linux-f2fs-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] f2fs: introduce SEGS_TO_BLKS/BLKS_TO_SEGS for cleanup
Chao,
I applied the below as well in order to keep zone capacity back.
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -101,11 +101,10 @@ static inline void sanity_check_seg_type(struct f2fs_sb_info *sbi,
NULL_SEGNO : GET_L2R_SEGNO(FREE_I(sbi), \
GET_SEGNO_FROM_SEG0(sbi, blk_addr)))
#define CAP_BLKS_PER_SEC(sbi) \
- (SEGS_PER_SEC(sbi) * BLKS_PER_SEG(sbi) - \
- (sbi)->unusable_blocks_per_sec)
+ (BLKS_PER_SEC(sbi) - (sbi)->unusable_blocks_per_sec)
#define CAP_SEGS_PER_SEC(sbi) \
- (SEGS_PER_SEC(sbi) - ((sbi)->unusable_blocks_per_sec >> \
- (sbi)->log_blocks_per_seg))
+ (SEGS_PER_SEC(sbi) - \
+ BLKS_TO_SEGS(sbi, (sbi)->unusable_blocks_per_sec)
#define GET_SEC_FROM_SEG(sbi, segno) \
(((segno) == -1) ? -1 : (segno) / SEGS_PER_SEC(sbi))
#define GET_SEG_FROM_SEC(sbi, secno) \
On 02/21, Chao Yu wrote:
> Just cleanup, no functional change.
>
> Signed-off-by: Chao Yu <chao@...nel.org>
> ---
> fs/f2fs/debug.c | 7 +++----
> fs/f2fs/f2fs.h | 14 ++++++++------
> fs/f2fs/gc.c | 10 +++++-----
> fs/f2fs/gc.h | 4 ++--
> fs/f2fs/segment.c | 12 ++++++------
> fs/f2fs/segment.h | 8 ++++----
> fs/f2fs/super.c | 16 ++++++++--------
> fs/f2fs/sysfs.c | 4 ++--
> 8 files changed, 38 insertions(+), 37 deletions(-)
>
> diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
> index 6617195bd27e..12893477f2e4 100644
> --- a/fs/f2fs/debug.c
> +++ b/fs/f2fs/debug.c
> @@ -134,7 +134,7 @@ static void update_general_status(struct f2fs_sb_info *sbi)
> si->cur_ckpt_time = sbi->cprc_info.cur_time;
> si->peak_ckpt_time = sbi->cprc_info.peak_time;
> spin_unlock(&sbi->cprc_info.stat_lock);
> - si->total_count = (int)sbi->user_block_count / BLKS_PER_SEG(sbi);
> + si->total_count = BLKS_TO_SEGS(sbi, (int)sbi->user_block_count);
> si->rsvd_segs = reserved_segments(sbi);
> si->overp_segs = overprovision_segments(sbi);
> si->valid_count = valid_user_blocks(sbi);
> @@ -175,11 +175,10 @@ static void update_general_status(struct f2fs_sb_info *sbi)
> si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID];
> si->io_skip_bggc = sbi->io_skip_bggc;
> si->other_skip_bggc = sbi->other_skip_bggc;
> - si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg)
> + si->util_free = (int)(BLKS_TO_SEGS(sbi, free_user_blocks(sbi)))
> * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
> / 2;
> - si->util_valid = (int)(written_block_count(sbi) >>
> - sbi->log_blocks_per_seg)
> + si->util_valid = (int)(BLKS_TO_SEGS(sbi, written_block_count(sbi)))
> * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
> / 2;
> si->util_invalid = 50 - si->util_free - si->util_valid;
> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> index dad2774ca72f..8a6fd4352a0e 100644
> --- a/fs/f2fs/f2fs.h
> +++ b/fs/f2fs/f2fs.h
> @@ -1813,12 +1813,14 @@ struct f2fs_sb_info {
> };
>
> /* Definitions to access f2fs_sb_info */
> -#define BLKS_PER_SEG(sbi) \
> - ((sbi)->blocks_per_seg)
> -#define BLKS_PER_SEC(sbi) \
> - ((sbi)->segs_per_sec << (sbi)->log_blocks_per_seg)
> -#define SEGS_PER_SEC(sbi) \
> - ((sbi)->segs_per_sec)
> +#define SEGS_TO_BLKS(sbi, segs) \
> + ((segs) << (sbi)->log_blocks_per_seg)
> +#define BLKS_TO_SEGS(sbi, blks) \
> + ((blks) >> (sbi)->log_blocks_per_seg)
> +
> +#define BLKS_PER_SEG(sbi) ((sbi)->blocks_per_seg)
> +#define BLKS_PER_SEC(sbi) (SEGS_TO_BLKS(sbi, (sbi)->segs_per_sec))
> +#define SEGS_PER_SEC(sbi) ((sbi)->segs_per_sec)
>
> __printf(3, 4)
> void f2fs_printk(struct f2fs_sb_info *sbi, bool limit_rate, const char *fmt, ...);
> diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
> index 3ff126316d42..6d160d50e14e 100644
> --- a/fs/f2fs/gc.c
> +++ b/fs/f2fs/gc.c
> @@ -301,7 +301,7 @@ static unsigned int get_max_cost(struct f2fs_sb_info *sbi,
>
> /* LFS */
> if (p->gc_mode == GC_GREEDY)
> - return 2 * BLKS_PER_SEG(sbi) * p->ofs_unit;
> + return SEGS_TO_BLKS(sbi, 2 * p->ofs_unit);
> else if (p->gc_mode == GC_CB)
> return UINT_MAX;
> else if (p->gc_mode == GC_AT)
> @@ -347,7 +347,7 @@ static unsigned int get_cb_cost(struct f2fs_sb_info *sbi, unsigned int segno)
> mtime = div_u64(mtime, SEGS_PER_SEC(sbi));
> vblocks = div_u64(vblocks, SEGS_PER_SEC(sbi));
>
> - u = (vblocks * 100) >> sbi->log_blocks_per_seg;
> + u = BLKS_TO_SEGS(sbi, vblocks * 100);
>
> /* Handle if the system time has changed by the user */
> if (mtime < sit_i->min_mtime)
> @@ -2060,7 +2060,7 @@ static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
> raw_sb->segment_count = cpu_to_le32(segment_count + segs);
> raw_sb->segment_count_main = cpu_to_le32(segment_count_main + segs);
> raw_sb->block_count = cpu_to_le64(block_count +
> - (long long)(segs << sbi->log_blocks_per_seg));
> + (long long)SEGS_TO_BLKS(sbi, segs));
> if (f2fs_is_multi_device(sbi)) {
> int last_dev = sbi->s_ndevs - 1;
> int dev_segs =
> @@ -2076,7 +2076,7 @@ static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
> static void update_fs_metadata(struct f2fs_sb_info *sbi, int secs)
> {
> int segs = secs * SEGS_PER_SEC(sbi);
> - long long blks = (long long)(segs << sbi->log_blocks_per_seg);
> + long long blks = (long long)SEGS_TO_BLKS(sbi, segs);
> long long user_block_count =
> le64_to_cpu(F2FS_CKPT(sbi)->user_block_count);
>
> @@ -2118,7 +2118,7 @@ int f2fs_resize_fs(struct file *filp, __u64 block_count)
> int last_dev = sbi->s_ndevs - 1;
> __u64 last_segs = FDEV(last_dev).total_segments;
>
> - if (block_count + (last_segs << sbi->log_blocks_per_seg) <=
> + if (block_count + SEGS_TO_BLKS(sbi, last_segs) <=
> old_block_count)
> return -EINVAL;
> }
> diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h
> index e4a75aa4160f..6a2419ddc7c6 100644
> --- a/fs/f2fs/gc.h
> +++ b/fs/f2fs/gc.h
> @@ -70,7 +70,7 @@ struct victim_entry {
>
> static inline block_t free_segs_blk_count(struct f2fs_sb_info *sbi)
> {
> - return free_segments(sbi) << sbi->log_blocks_per_seg;
> + return SEGS_TO_BLKS(sbi, free_segments(sbi));
> }
>
> static inline block_t free_user_blocks(struct f2fs_sb_info *sbi)
> @@ -78,7 +78,7 @@ static inline block_t free_user_blocks(struct f2fs_sb_info *sbi)
> block_t free_blks, ovp_blks;
>
> free_blks = free_segs_blk_count(sbi);
> - ovp_blks = overprovision_segments(sbi) << sbi->log_blocks_per_seg;
> + ovp_blks = SEGS_TO_BLKS(sbi, overprovision_segments(sbi));
>
> if (free_blks < ovp_blks)
> return 0;
> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> index 56927b097e30..d0209ea77dd2 100644
> --- a/fs/f2fs/segment.c
> +++ b/fs/f2fs/segment.c
> @@ -448,8 +448,8 @@ static inline bool excess_dirty_threshold(struct f2fs_sb_info *sbi)
> unsigned int nodes = get_pages(sbi, F2FS_DIRTY_NODES);
> unsigned int meta = get_pages(sbi, F2FS_DIRTY_META);
> unsigned int imeta = get_pages(sbi, F2FS_DIRTY_IMETA);
> - unsigned int threshold = (factor * DEFAULT_DIRTY_THRESHOLD) <<
> - sbi->log_blocks_per_seg;
> + unsigned int threshold =
> + SEGS_TO_BLKS(sbi, (factor * DEFAULT_DIRTY_THRESHOLD));
> unsigned int global_threshold = threshold * 3 / 2;
>
> if (dents >= threshold || qdata >= threshold ||
> @@ -870,7 +870,7 @@ block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi)
> {
> int ovp_hole_segs =
> (overprovision_segments(sbi) - reserved_segments(sbi));
> - block_t ovp_holes = ovp_hole_segs << sbi->log_blocks_per_seg;
> + block_t ovp_holes = SEGS_TO_BLKS(sbi, ovp_hole_segs);
> struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
> block_t holes[2] = {0, 0}; /* DATA and NODE */
> block_t unusable;
> @@ -2178,7 +2178,7 @@ void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
> if (!f2fs_sb_has_blkzoned(sbi) &&
> (!f2fs_lfs_mode(sbi) || !__is_large_section(sbi))) {
> f2fs_issue_discard(sbi, START_BLOCK(sbi, start),
> - (end - start) << sbi->log_blocks_per_seg);
> + SEGS_TO_BLKS(sbi, end - start));
> continue;
> }
> next:
> @@ -2289,7 +2289,7 @@ static int create_discard_cmd_control(struct f2fs_sb_info *sbi)
> atomic_set(&dcc->queued_discard, 0);
> atomic_set(&dcc->discard_cmd_cnt, 0);
> dcc->nr_discards = 0;
> - dcc->max_discards = MAIN_SEGS(sbi) << sbi->log_blocks_per_seg;
> + dcc->max_discards = SEGS_TO_BLKS(sbi, MAIN_SEGS(sbi));
> dcc->max_discard_request = DEF_MAX_DISCARD_REQUEST;
> dcc->min_discard_issue_time = DEF_MIN_DISCARD_ISSUE_TIME;
> dcc->mid_discard_issue_time = DEF_MID_DISCARD_ISSUE_TIME;
> @@ -4469,7 +4469,7 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
> #endif
>
> sit_i->sit_base_addr = le32_to_cpu(raw_super->sit_blkaddr);
> - sit_i->sit_blocks = sit_segs << sbi->log_blocks_per_seg;
> + sit_i->sit_blocks = SEGS_TO_BLKS(sbi, sit_segs);
> sit_i->written_valid_blocks = 0;
> sit_i->bitmap_size = sit_bitmap_size;
> sit_i->dirty_sentries = 0;
> diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
> index 9fe5ec619456..e72b02b67087 100644
> --- a/fs/f2fs/segment.h
> +++ b/fs/f2fs/segment.h
> @@ -77,21 +77,21 @@ static inline void sanity_check_seg_type(struct f2fs_sb_info *sbi,
> #define TOTAL_SEGS(sbi) \
> (SM_I(sbi) ? SM_I(sbi)->segment_count : \
> le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count))
> -#define TOTAL_BLKS(sbi) (TOTAL_SEGS(sbi) << (sbi)->log_blocks_per_seg)
> +#define TOTAL_BLKS(sbi) (SEGS_TO_BLKS(sbi, TOTAL_SEGS(sbi)))
>
> #define MAX_BLKADDR(sbi) (SEG0_BLKADDR(sbi) + TOTAL_BLKS(sbi))
> #define SEGMENT_SIZE(sbi) (1ULL << ((sbi)->log_blocksize + \
> (sbi)->log_blocks_per_seg))
>
> #define START_BLOCK(sbi, segno) (SEG0_BLKADDR(sbi) + \
> - (GET_R2L_SEGNO(FREE_I(sbi), segno) << (sbi)->log_blocks_per_seg))
> + (SEGS_TO_BLKS(sbi, GET_R2L_SEGNO(FREE_I(sbi), segno))))
>
> #define NEXT_FREE_BLKADDR(sbi, curseg) \
> (START_BLOCK(sbi, (curseg)->segno) + (curseg)->next_blkoff)
>
> #define GET_SEGOFF_FROM_SEG0(sbi, blk_addr) ((blk_addr) - SEG0_BLKADDR(sbi))
> #define GET_SEGNO_FROM_SEG0(sbi, blk_addr) \
> - (GET_SEGOFF_FROM_SEG0(sbi, blk_addr) >> (sbi)->log_blocks_per_seg)
> + (BLKS_TO_SEGS(sbi, GET_SEGOFF_FROM_SEG0(sbi, blk_addr)))
> #define GET_BLKOFF_FROM_SEG0(sbi, blk_addr) \
> (GET_SEGOFF_FROM_SEG0(sbi, blk_addr) & (BLKS_PER_SEG(sbi) - 1))
>
> @@ -891,7 +891,7 @@ static inline int nr_pages_to_skip(struct f2fs_sb_info *sbi, int type)
> if (type == DATA)
> return BLKS_PER_SEG(sbi);
> else if (type == NODE)
> - return 8 * BLKS_PER_SEG(sbi);
> + return SEGS_TO_BLKS(sbi, 8);
> else if (type == META)
> return 8 * BIO_MAX_VECS;
> else
> diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
> index 9976f2b0393c..bb056700b459 100644
> --- a/fs/f2fs/super.c
> +++ b/fs/f2fs/super.c
> @@ -3763,9 +3763,9 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
> sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
> sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
> sbi->total_sections = le32_to_cpu(raw_super->section_count);
> - sbi->total_node_count =
> - ((le32_to_cpu(raw_super->segment_count_nat) / 2) *
> - NAT_ENTRY_PER_BLOCK) << sbi->log_blocks_per_seg;
> + sbi->total_node_count = SEGS_TO_BLKS(sbi,
> + ((le32_to_cpu(raw_super->segment_count_nat) / 2) *
> + NAT_ENTRY_PER_BLOCK));
> F2FS_ROOT_INO(sbi) = le32_to_cpu(raw_super->root_ino);
> F2FS_NODE_INO(sbi) = le32_to_cpu(raw_super->node_ino);
> F2FS_META_INO(sbi) = le32_to_cpu(raw_super->meta_ino);
> @@ -4199,14 +4199,14 @@ static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
> if (i == 0) {
> FDEV(i).start_blk = 0;
> FDEV(i).end_blk = FDEV(i).start_blk +
> - (FDEV(i).total_segments <<
> - sbi->log_blocks_per_seg) - 1 +
> - le32_to_cpu(raw_super->segment0_blkaddr);
> + SEGS_TO_BLKS(sbi,
> + FDEV(i).total_segments) - 1 +
> + le32_to_cpu(raw_super->segment0_blkaddr);
> } else {
> FDEV(i).start_blk = FDEV(i - 1).end_blk + 1;
> FDEV(i).end_blk = FDEV(i).start_blk +
> - (FDEV(i).total_segments <<
> - sbi->log_blocks_per_seg) - 1;
> + SEGS_TO_BLKS(sbi,
> + FDEV(i).total_segments) - 1;
> FDEV(i).bdev_handle = bdev_open_by_path(
> FDEV(i).path, mode, sbi->sb, NULL);
> }
> diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
> index 2689cc9c3bf8..ceac3bfc5e2c 100644
> --- a/fs/f2fs/sysfs.c
> +++ b/fs/f2fs/sysfs.c
> @@ -493,8 +493,8 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
> spin_lock(&sbi->stat_lock);
> if (t > (unsigned long)(sbi->user_block_count -
> F2FS_OPTION(sbi).root_reserved_blocks -
> - (SM_I(sbi)->additional_reserved_segments <<
> - sbi->log_blocks_per_seg))) {
> + SEGS_TO_BLKS(sbi,
> + SM_I(sbi)->additional_reserved_segments))) {
> spin_unlock(&sbi->stat_lock);
> return -EINVAL;
> }
> --
> 2.40.1
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