// SPDX-License-Identifier: GPL-2.0
/*
* f2fs debugging statistics
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
* Copyright (c) 2012 Linux Foundation
* Copyright (c) 2012 Greg Kroah-Hartman <[email protected]>
*/
#include <linux/fs.h>
#include <linux/backing-dev.h>
#include <linux/f2fs_fs.h>
#include <linux/blkdev.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include "f2fs.h"
#include "node.h"
#include "segment.h"
#include "gc.h"
static LIST_HEAD(f2fs_stat_list);
static DEFINE_RAW_SPINLOCK(f2fs_stat_lock);
#ifdef CONFIG_DEBUG_FS
static struct dentry *f2fs_debugfs_root;
#endif
/*
* This function calculates BDF of every segments
*/
void f2fs_update_sit_info(struct f2fs_sb_info *sbi)
{
struct f2fs_stat_info *si = F2FS_STAT(sbi);
unsigned long long blks_per_sec, hblks_per_sec, total_vblocks;
unsigned long long bimodal, dist;
unsigned int segno, vblocks;
int ndirty = 0;
bimodal = 0;
total_vblocks = 0;
blks_per_sec = CAP_BLKS_PER_SEC(sbi);
hblks_per_sec = blks_per_sec / 2;
for (segno = 0; segno < MAIN_SEGS(sbi); segno += SEGS_PER_SEC(sbi)) {
vblocks = get_valid_blocks(sbi, segno, true);
dist = abs(vblocks - hblks_per_sec);
bimodal += dist * dist;
if (vblocks > 0 && vblocks < blks_per_sec) {
total_vblocks += vblocks;
ndirty++;
}
}
dist = div_u64(MAIN_SECS(sbi) * hblks_per_sec * hblks_per_sec, 100);
si->bimodal = div64_u64(bimodal, dist);
if (si->dirty_count)
si->avg_vblocks = div_u64(total_vblocks, ndirty);
else
si->avg_vblocks = 0;
}
#ifdef CONFIG_DEBUG_FS
static void update_general_status(struct f2fs_sb_info *sbi)
{
struct f2fs_stat_info *si = F2FS_STAT(sbi);
struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
int i;
/* these will be changed if online resize is done */
si->main_area_segs = le32_to_cpu(raw_super->segment_count_main);
si->main_area_sections = le32_to_cpu(raw_super->section_count);
si->main_area_zones = si->main_area_sections /
le32_to_cpu(raw_super->secs_per_zone);
/* general extent cache stats */
for (i = 0; i < NR_EXTENT_CACHES; i++) {
struct extent_tree_info *eti = &sbi->extent_tree[i];
si->hit_cached[i] = atomic64_read(&sbi->read_hit_cached[i]);
si->hit_rbtree[i] = atomic64_read(&sbi->read_hit_rbtree[i]);
si->total_ext[i] = atomic64_read(&sbi->total_hit_ext[i]);
si->hit_total[i] = si->hit_cached[i] + si->hit_rbtree[i];
si->ext_tree[i] = atomic_read(&eti->total_ext_tree);
si->zombie_tree[i] = atomic_read(&eti->total_zombie_tree);
si->ext_node[i] = atomic_read(&eti->total_ext_node);
}
/* read extent_cache only */
si->hit_largest = atomic64_read(&sbi->read_hit_largest);
si->hit_total[EX_READ] += si->hit_largest;
/* block age extent_cache only */
si->allocated_data_blocks = atomic64_read(&sbi->allocated_data_blocks);
/* validation check of the segment numbers */
si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES);
si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS);
si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META);
si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA);
si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA);
si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA);
si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE];
si->ndirty_files = sbi->ndirty_inode[FILE_INODE];
si->nquota_files = sbi->nquota_files;
si->ndirty_all = sbi->ndirty_inode[DIRTY_META];
si->aw_cnt = atomic_read(&sbi->atomic_files);
si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt);
si->nr_dio_read = get_pages(sbi, F2FS_DIO_READ);
si->nr_dio_write = get_pages(sbi, F2FS_DIO_WRITE);
si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA);
si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA);
si->nr_rd_data = get_pages(sbi, F2FS_RD_DATA);
si->nr_rd_node = get_pages(sbi, F2FS_RD_NODE);
si->nr_rd_meta = get_pages(sbi, F2FS_RD_META);
if (SM_I(sbi)->fcc_info) {
si->nr_flushed =
atomic_read(&SM_I(sbi)->fcc_info->issued_flush);
si->nr_flushing =
atomic_read(&SM_I(sbi)->fcc_info->queued_flush);
si->flush_list_empty =
llist_empty(&SM_I(sbi)->fcc_info->issue_list);
}
if (SM_I(sbi)->dcc_info) {
si->nr_discarded =
atomic_read(&SM_I(sbi)->dcc_info->issued_discard);
si->nr_discarding =
atomic_read(&SM_I(sbi)->dcc_info->queued_discard);
si->nr_discard_cmd =
atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks;
}
si->nr_issued_ckpt = atomic_read(&sbi->cprc_info.issued_ckpt);
si->nr_total_ckpt = atomic_read(&sbi->cprc_info.total_ckpt);
si->nr_queued_ckpt = atomic_read(&sbi->cprc_info.queued_ckpt);
spin_lock(&sbi->cprc_info.stat_lock);
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 = 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);
si->discard_blks = discard_blocks(sbi);
si->valid_node_count = valid_node_count(sbi);
si->valid_inode_count = valid_inode_count(sbi);
si->inline_xattr = atomic_read(&sbi->inline_xattr);
si->inline_inode = atomic_read(&sbi->inline_inode);
si->inline_dir = atomic_read(&sbi->inline_dir);
si->compr_inode = atomic_read(&sbi->compr_inode);
si->swapfile_inode = atomic_read(&sbi->swapfile_inode);
si->compr_blocks = atomic64_read(&sbi->compr_blocks);
si->append = sbi->im[APPEND_INO].ino_num;
si->update = sbi->im[UPDATE_INO].ino_num;
si->orphans = sbi->im[ORPHAN_INO].ino_num;
si->utilization = utilization(sbi);
si->free_segs = free_segments(sbi);
si->free_secs = free_sections(sbi);
si->prefree_count = prefree_segments(sbi);
si->dirty_count = dirty_segments(sbi);
if (sbi->node_inode)
si->node_pages = NODE_MAPPING(sbi)->nrpages;
if (sbi->meta_inode)
si->meta_pages = META_MAPPING(sbi)->nrpages;
#ifdef CONFIG_F2FS_FS_COMPRESSION
if (sbi->compress_inode) {
si->compress_pages = COMPRESS_MAPPING(sbi)->nrpages;
si->compress_page_hit = atomic_read(&sbi->compress_page_hit);
}
#endif
si->nats = NM_I(sbi)->nat_cnt[TOTAL_NAT];
si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT];
si->sits = MAIN_SEGS(sbi);
si->dirty_sits = SIT_I(sbi)->dirty_sentries;
si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID];
si->avail_nids = NM_I(sbi)->available_nids;
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)(BLKS_TO_SEGS(sbi, free_user_blocks(sbi)))
* 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
/ 2;
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;
for (i = CURSEG_HOT_DATA; i < NO_CHECK_TYPE; i++) {
struct curseg_info *curseg = CURSEG_I(sbi, i);
si->curseg[i] = curseg->segno;
si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno);
si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]);
}
for (i = META_CP; i < META_MAX; i++)
si->meta_count[i] = atomic_read(&sbi->meta_count[i]);
for (i = 0; i < NO_CHECK_TYPE; i++) {
si->dirty_seg[i] = 0;
si->full_seg[i] = 0;
si->valid_blks[i] = 0;
}
for (i = 0; i < MAIN_SEGS(sbi); i++) {
int blks = get_seg_entry(sbi, i)->valid_blocks;
int type = get_seg_entry(sbi, i)->type;
if (!blks)
continue;
if (blks == BLKS_PER_SEG(sbi))
si->full_seg[type]++;
else
si->dirty_seg[type]++;
si->valid_blks[type] += blks;
}
for (i = 0; i < MAX_CALL_TYPE; i++)
si->cp_call_count[i] = atomic_read(&sbi->cp_call_count[i]);
for (i = 0; i < 2; i++) {
si->segment_count[i] = sbi->segment_count[i];
si->block_count[i] = sbi->block_count[i];
}
si->inplace_count = atomic_read(&sbi->inplace_count);
}
/*
* This function calculates memory footprint.
*/
static void update_mem_info(struct f2fs_sb_info *sbi)
{
struct f2fs_stat_info *si = F2FS_STAT(sbi);
int i;
if (si->base_mem)
goto get_cache;
/* build stat */
si->base_mem = sizeof(struct f2fs_stat_info);
/* build superblock */
si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize;
si->base_mem += 2 * sizeof(struct f2fs_inode_info);
si->base_mem += sizeof(*sbi->ckpt);
/* build sm */
si->base_mem += sizeof(struct f2fs_sm_info);
/* build sit */
si->base_mem += sizeof(struct sit_info);
si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry);
si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi));
si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
si->base_mem += SIT_VBLOCK_MAP_SIZE;
if (__is_large_section(sbi))
si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry);
si->base_mem += __bitmap_size(sbi, SIT_BITMAP);
/* build free segmap */
si->base_mem += sizeof(struct free_segmap_info);
si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi));
si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi));
/* build curseg */
si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE;
si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE;
/* build dirty segmap */
si->base_mem += sizeof(struct dirty_seglist_info);
si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi));
si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi));
/* build nm */
si->base_mem += sizeof(struct f2fs_nm_info);
si->base_mem += __bitmap_size(sbi, NAT_BITMAP);
si->base_mem += F2FS_BLK_TO_BYTES(NM_I(sbi)->nat_bits_blocks);
si->base_mem += NM_I(sbi)->nat_blocks *
f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK);
si->base_mem += NM_I(sbi)->nat_blocks / 8;
si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short);
get_cache:
si->cache_mem = 0;
/* build gc */
if (sbi->gc_thread)
si->cache_mem += sizeof(struct f2fs_gc_kthread);
/* build merge flush thread */
if (SM_I(sbi)->fcc_info)
si->cache_mem += sizeof(struct flush_cmd_control);
if (SM_I(sbi)->dcc_info) {
si->cache_mem += sizeof(struct discard_cmd_control);
si->cache_mem += sizeof(struct discard_cmd) *
atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
}
/* free nids */
si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID] +
NM_I(sbi)->nid_cnt[PREALLOC_NID]) *
sizeof(struct free_nid);
si->cache_mem += NM_I(sbi)->nat_cnt[TOTAL_NAT] *
sizeof(struct nat_entry);
si->cache_mem += NM_I(sbi)->nat_cnt[DIRTY_NAT] *
sizeof(struct nat_entry_set);
for (i = 0; i < MAX_INO_ENTRY; i++)
si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry);
for (i = 0; i < NR_EXTENT_CACHES; i++) {
struct extent_tree_info *eti = &sbi->extent_tree[i];
si->ext_mem[i] = atomic_read(&eti->total_ext_tree) *
sizeof(struct extent_tree);
si->ext_mem[i] += atomic_read(&eti->total_ext_node) *
sizeof(struct extent_node);
si->cache_mem += si->ext_mem[i];
}
si->page_mem = 0;
if (sbi->node_inode) {
unsigned long npages = NODE_MAPPING(sbi)->nrpages;
si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
}
if (sbi->meta_inode) {
unsigned long npages = META_MAPPING(sbi)->nrpages;
si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
}
#ifdef CONFIG_F2FS_FS_COMPRESSION
if (sbi->compress_inode) {
unsigned long npages = COMPRESS_MAPPING(sbi)->nrpages;
si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
}
#endif
}
static const char *s_flag[MAX_SBI_FLAG] = {
[SBI_IS_DIRTY] = "fs_dirty",
[SBI_IS_CLOSE] = "closing",
[SBI_NEED_FSCK] = "need_fsck",
[SBI_POR_DOING] = "recovering",
[SBI_NEED_SB_WRITE] = "sb_dirty",
[SBI_NEED_CP] = "need_cp",
[SBI_IS_SHUTDOWN] = "shutdown",
[SBI_IS_RECOVERED] = "recovered",
[SBI_CP_DISABLED] = "cp_disabled",
[SBI_CP_DISABLED_QUICK] = "cp_disabled_quick",
[SBI_QUOTA_NEED_FLUSH] = "quota_need_flush",
[SBI_QUOTA_SKIP_FLUSH] = "quota_skip_flush",
[SBI_QUOTA_NEED_REPAIR] = "quota_need_repair",
[SBI_IS_RESIZEFS] = "resizefs",
[SBI_IS_FREEZING] = "freezefs",
[SBI_IS_WRITABLE] = "writable",
};
static const char *ipu_mode_names[F2FS_IPU_MAX] = {
[F2FS_IPU_FORCE] = "FORCE",
[F2FS_IPU_SSR] = "SSR",
[F2FS_IPU_UTIL] = "UTIL",
[F2FS_IPU_SSR_UTIL] = "SSR_UTIL",
[F2FS_IPU_FSYNC] = "FSYNC",
[F2FS_IPU_ASYNC] = "ASYNC",
[F2FS_IPU_NOCACHE] = "NOCACHE",
[F2FS_IPU_HONOR_OPU_WRITE] = "HONOR_OPU_WRITE",
};
static int stat_show(struct seq_file *s, void *v)
{
struct f2fs_stat_info *si;
int i = 0, j = 0;
unsigned long flags;
raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
list_for_each_entry(si, &f2fs_stat_list, stat_list) {
struct f2fs_sb_info *sbi = si->sbi;
update_general_status(sbi);
seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n",
sbi->sb->s_bdev, i++,
f2fs_readonly(sbi->sb) ? "RO" : "RW",
is_set_ckpt_flags(sbi, CP_DISABLED_FLAG) ?
"Disabled" : (f2fs_cp_error(sbi) ? "Error" : "Good"));
if (sbi->s_flag) {
seq_puts(s, "[SBI:");
for_each_set_bit(j, &sbi->s_flag, MAX_SBI_FLAG)
seq_printf(s, " %s", s_flag[j]);
seq_puts(s, "]\n");
}
seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ",
si->sit_area_segs, si->nat_area_segs);
seq_printf(s, "[SSA: %d] [MAIN: %d",
si->ssa_area_segs, si->main_area_segs);
seq_printf(s, "(OverProv:%d Resv:%d)]\n\n",
si->overp_segs, si->rsvd_segs);
seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n",
ktime_get_boottime_seconds(),
SIT_I(sbi)->mounted_time);
seq_puts(s, "Policy:\n");
seq_puts(s, " - IPU: [");
if (IS_F2FS_IPU_DISABLE(sbi)) {
seq_puts(s, " DISABLE");
} else {
unsigned long policy = SM_I(sbi)->ipu_policy;
for_each_set_bit(j, &policy, F2FS_IPU_MAX)
seq_printf(s, " %s", ipu_mode_names[j]);
}
seq_puts(s, " ]\n\n");
if (test_opt(sbi, DISCARD))
seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n",
si->utilization, si->valid_count, si->discard_blks);
else
seq_printf(s, "Utilization: %u%% (%u valid blocks)\n",
si->utilization, si->valid_count);
seq_printf(s, " - Node: %u (Inode: %u, ",
si->valid_node_count, si->valid_inode_count);
seq_printf(s, "Other: %u)\n - Data: %u\n",
si->valid_node_count - si->valid_inode_count,
si->valid_count - si->valid_node_count);
seq_printf(s, " - Inline_xattr Inode: %u\n",
si->inline_xattr);
seq_printf(s, " - Inline_data Inode: %u\n",
si->inline_inode);
seq_printf(s, " - Inline_dentry Inode: %u\n",
si->inline_dir);
seq_printf(s, " - Compressed Inode: %u, Blocks: %llu\n",
si->compr_inode, si->compr_blocks);
seq_printf(s, " - Swapfile Inode: %u\n",
si->swapfile_inode);
seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n",
si->orphans, si->append, si->update);
seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n",
si->main_area_segs, si->main_area_sections,
si->main_area_zones);
seq_printf(s, " TYPE %8s %8s %8s %10s %10s %10s\n",
"segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk");
seq_printf(s, " - COLD data: %8d %8d %8d %10u %10u %10u\n",
si->curseg[CURSEG_COLD_DATA],
si->cursec[CURSEG_COLD_DATA],
si->curzone[CURSEG_COLD_DATA],
si->dirty_seg[CURSEG_COLD_DATA],
si->full_seg[CURSEG_COLD_DATA],
si->valid_blks[CURSEG_COLD_DATA]);
seq_printf(s, " - WARM data: %8d %8d %8d %10u %10u %10u\n",
si->curseg[CURSEG_WARM_DATA],
si->cursec[CURSEG_WARM_DATA],
si->curzone[CURSEG_WARM_DATA],
si->dirty_seg[CURSEG_WARM_DATA],
si->full_seg[CURSEG_WARM_DATA],
si->valid_blks[CURSEG_WARM_DATA]);
seq_printf(s, " - HOT data: %8d %8d %8d %10u %10u %10u\n",
si->curseg[CURSEG_HOT_DATA],
si->cursec[CURSEG_HOT_DATA],
si->curzone[CURSEG_HOT_DATA],
si->dirty_seg[CURSEG_HOT_DATA],
si->full_seg[CURSEG_HOT_DATA],
si->valid_blks[CURSEG_HOT_DATA]);
seq_printf(s, " - Dir dnode: %8d %8d %8d %10u %10u %10u\n",
si->curseg[CURSEG_HOT_NODE],
si->cursec[CURSEG_HOT_NODE],
si->curzone[CURSEG_HOT_NODE],
si->dirty_seg[CURSEG_HOT_NODE],
si->full_seg[CURSEG_HOT_NODE],
si->valid_blks[CURSEG_HOT_NODE]);
seq_printf(s, " - File dnode: %8d %8d %8d %10u %10u %10u\n",
si->curseg[CURSEG_WARM_NODE],
si->cursec[CURSEG_WARM_NODE],
si->curzone[CURSEG_WARM_NODE],
si->dirty_seg[CURSEG_WARM_NODE],
si->full_seg[CURSEG_WARM_NODE],
si->valid_blks[CURSEG_WARM_NODE]);
seq_printf(s, " - Indir nodes: %8d %8d %8d %10u %10u %10u\n",
si->curseg[CURSEG_COLD_NODE],
si->cursec[CURSEG_COLD_NODE],
si->curzone[CURSEG_COLD_NODE],
si->dirty_seg[CURSEG_COLD_NODE],
si->full_seg[CURSEG_COLD_NODE],
si->valid_blks[CURSEG_COLD_NODE]);
seq_printf(s, " - Pinned file: %8d %8d %8d\n",
si->curseg[CURSEG_COLD_DATA_PINNED],
si->cursec[CURSEG_COLD_DATA_PINNED],
si->curzone[CURSEG_COLD_DATA_PINNED]);
seq_printf(s, " - ATGC data: %8d %8d %8d\n",
si->curseg[CURSEG_ALL_DATA_ATGC],
si->cursec[CURSEG_ALL_DATA_ATGC],
si->curzone[CURSEG_ALL_DATA_ATGC]);
seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n",
si->main_area_segs - si->dirty_count -
si->prefree_count - si->free_segs,
si->dirty_count);
seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n",
si->prefree_count, si->free_segs, si->free_secs);
seq_printf(s, "CP calls: %d (BG: %d)\n",
si->cp_call_count[TOTAL_CALL],
si->cp_call_count[BACKGROUND]);
seq_printf(s, "CP count: %d\n", si->cp_count);
seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]);
seq_printf(s, " - sit blocks : %u\n",
si->meta_count[META_SIT]);
seq_printf(s, " - nat blocks : %u\n",
si->meta_count[META_NAT]);
seq_printf(s, " - ssa blocks : %u\n",
si->meta_count[META_SSA]);
seq_puts(s, "CP merge:\n");
seq_printf(s, " - Queued : %4d\n", si->nr_queued_ckpt);
seq_printf(s, " - Issued : %4d\n", si->nr_issued_ckpt);
seq_printf(s, " - Total : %4d\n", si->nr_total_ckpt);
seq_printf(s, " - Cur time : %4d(ms)\n", si->cur_ckpt_time);
seq_printf(s, " - Peak time : %4d(ms)\n", si->peak_ckpt_time);
seq_printf(s, "GC calls: %d (gc_thread: %d)\n",
si->gc_call_count[BACKGROUND] +
si->gc_call_count[FOREGROUND],
si->gc_call_count[BACKGROUND]);
if (__is_large_section(sbi)) {
seq_printf(s, " - data sections : %d (BG: %d)\n",
si->gc_secs[DATA][BG_GC] + si->gc_secs[DATA][FG_GC],
si->gc_secs[DATA][BG_GC]);
seq_printf(s, " - node sections : %d (BG: %d)\n",
si->gc_secs[NODE][BG_GC] + si->gc_secs[NODE][FG_GC],
si->gc_secs[NODE][BG_GC]);
}
seq_printf(s, " - data segments : %d (BG: %d)\n",
si->gc_segs[DATA][BG_GC] + si->gc_segs[DATA][FG_GC],
si->gc_segs[DATA][BG_GC]);
seq_printf(s, " - node segments : %d (BG: %d)\n",
si->gc_segs[NODE][BG_GC] + si->gc_segs[NODE][FG_GC],
si->gc_segs[NODE][BG_GC]);
seq_puts(s, " - Reclaimed segs :\n");
seq_printf(s, " - Normal : %d\n", sbi->gc_reclaimed_segs[GC_NORMAL]);
seq_printf(s, " - Idle CB : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_CB]);
seq_printf(s, " - Idle Greedy : %d\n",
sbi->gc_reclaimed_segs[GC_IDLE_GREEDY]);
seq_printf(s, " - Idle AT : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_AT]);
seq_printf(s, " - Urgent High : %d\n",
sbi->gc_reclaimed_segs[GC_URGENT_HIGH]);
seq_printf(s, " - Urgent Mid : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_MID]);
seq_printf(s, " - Urgent Low : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_LOW]);
seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks,
si->bg_data_blks + si->bg_node_blks);
seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks,
si->bg_data_blks);
seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks,
si->bg_node_blks);
seq_printf(s, "BG skip : IO: %u, Other: %u\n",
si->io_skip_bggc, si->other_skip_bggc);
seq_puts(s, "\nExtent Cache (Read):\n");
seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n",
si->hit_largest, si->hit_cached[EX_READ],
si->hit_rbtree[EX_READ]);
seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n",
!si->total_ext[EX_READ] ? 0 :
div64_u64(si->hit_total[EX_READ] * 100,
si->total_ext[EX_READ]),
si->hit_total[EX_READ], si->total_ext[EX_READ]);
seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n",
si->ext_tree[EX_READ], si->zombie_tree[EX_READ],
si->ext_node[EX_READ]);
seq_puts(s, "\nExtent Cache (Block Age):\n");
seq_printf(s, " - Allocated Data Blocks: %llu\n",
si->allocated_data_blocks);
seq_printf(s, " - Hit Count: L1:%llu L2:%llu\n",
si->hit_cached[EX_BLOCK_AGE],
si->hit_rbtree[EX_BLOCK_AGE]);
seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n",
!si->total_ext[EX_BLOCK_AGE] ? 0 :
div64_u64(si->hit_total[EX_BLOCK_AGE] * 100,
si->total_ext[EX_BLOCK_AGE]),
si->hit_total[EX_BLOCK_AGE],
si->total_ext[EX_BLOCK_AGE]);
seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n",
si->ext_tree[EX_BLOCK_AGE],
si->zombie_tree[EX_BLOCK_AGE],
si->ext_node[EX_BLOCK_AGE]);
seq_puts(s, "\nBalancing F2FS Async:\n");
seq_printf(s, " - DIO (R: %4d, W: %4d)\n",
si->nr_dio_read, si->nr_dio_write);
seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n",
si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta);
seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), ",
si->nr_wb_cp_data, si->nr_wb_data,
si->nr_flushing, si->nr_flushed,
si->flush_list_empty);
seq_printf(s, "Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n",
si->nr_discarding, si->nr_discarded,
si->nr_discard_cmd, si->undiscard_blks);
seq_printf(s, " - atomic IO: %4d (Max. %4d)\n",
si->aw_cnt, si->max_aw_cnt);
seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit);
seq_printf(s, " - nodes: %4d in %4d\n",
si->ndirty_node, si->node_pages);
seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n",
si->ndirty_dent, si->ndirty_dirs, si->ndirty_all);
seq_printf(s, " - datas: %4d in files:%4d\n",
si->ndirty_data, si->ndirty_files);
seq_printf(s, " - quota datas: %4d in quota files:%4d\n",
si->ndirty_qdata, si->nquota_files);
seq_printf(s, " - meta: %4d in %4d\n",
si->ndirty_meta, si->meta_pages);
seq_printf(s, " - imeta: %4d\n",
si->ndirty_imeta);
seq_printf(s, " - fsync mark: %4lld\n",
percpu_counter_sum_positive(
&sbi->rf_node_block_count));
seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n",
si->dirty_nats, si->nats, si->dirty_sits, si->sits);
seq_printf(s, " - free_nids: %9d/%9d\n - alloc_nids: %9d\n",
si->free_nids, si->avail_nids, si->alloc_nids);
seq_puts(s, "\nDistribution of User Blocks:");
seq_puts(s, " [ valid | invalid | free ]\n");
seq_puts(s, " [");
for (j = 0; j < si->util_valid; j++)
seq_putc(s, '-');
seq_putc(s, '|');
for (j = 0; j < si->util_invalid; j++)
seq_putc(s, '-');
seq_putc(s, '|');
for (j = 0; j < si->util_free; j++)
seq_putc(s, '-');
seq_puts(s, "]\n\n");
seq_printf(s, "IPU: %u blocks\n", si->inplace_count);
seq_printf(s, "SSR: %u blocks in %u segments\n",
si->block_count[SSR], si->segment_count[SSR]);
seq_printf(s, "LFS: %u blocks in %u segments\n",
si->block_count[LFS], si->segment_count[LFS]);
/* segment usage info */
f2fs_update_sit_info(sbi);
seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n",
si->bimodal, si->avg_vblocks);
/* memory footprint */
update_mem_info(sbi);
seq_printf(s, "\nMemory: %llu KB\n",
(si->base_mem + si->cache_mem + si->page_mem) >> 10);
seq_printf(s, " - static: %llu KB\n",
si->base_mem >> 10);
seq_printf(s, " - cached all: %llu KB\n",
si->cache_mem >> 10);
seq_printf(s, " - read extent cache: %llu KB\n",
si->ext_mem[EX_READ] >> 10);
seq_printf(s, " - block age extent cache: %llu KB\n",
si->ext_mem[EX_BLOCK_AGE] >> 10);
seq_printf(s, " - paged : %llu KB\n",
si->page_mem >> 10);
}
raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(stat);
#endif
int f2fs_build_stats(struct f2fs_sb_info *sbi)
{
struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
struct f2fs_stat_info *si;
unsigned long flags;
int i;
si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL);
if (!si)
return -ENOMEM;
si->all_area_segs = le32_to_cpu(raw_super->segment_count);
si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit);
si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat);
si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa);
si->main_area_segs = le32_to_cpu(raw_super->segment_count_main);
si->main_area_sections = le32_to_cpu(raw_super->section_count);
si->main_area_zones = si->main_area_sections /
le32_to_cpu(raw_super->secs_per_zone);
si->sbi = sbi;
sbi->stat_info = si;
/* general extent cache stats */
for (i = 0; i < NR_EXTENT_CACHES; i++) {
atomic64_set(&sbi->total_hit_ext[i], 0);
atomic64_set(&sbi->read_hit_rbtree[i], 0);
atomic64_set(&sbi->read_hit_cached[i], 0);
}
/* read extent_cache only */
atomic64_set(&sbi->read_hit_largest, 0);
atomic_set(&sbi->inline_xattr, 0);
atomic_set(&sbi->inline_inode, 0);
atomic_set(&sbi->inline_dir, 0);
atomic_set(&sbi->compr_inode, 0);
atomic64_set(&sbi->compr_blocks, 0);
atomic_set(&sbi->swapfile_inode, 0);
atomic_set(&sbi->atomic_files, 0);
atomic_set(&sbi->inplace_count, 0);
for (i = META_CP; i < META_MAX; i++)
atomic_set(&sbi->meta_count[i], 0);
for (i = 0; i < MAX_CALL_TYPE; i++)
atomic_set(&sbi->cp_call_count[i], 0);
atomic_set(&sbi->max_aw_cnt, 0);
raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
list_add_tail(&si->stat_list, &f2fs_stat_list);
raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
return 0;
}
void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
{
struct f2fs_stat_info *si = F2FS_STAT(sbi);
unsigned long flags;
raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
list_del(&si->stat_list);
raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
kfree(si);
}
void __init f2fs_create_root_stats(void)
{
#ifdef CONFIG_DEBUG_FS
f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);
debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL,
&stat_fops);
#endif
}
void f2fs_destroy_root_stats(void)
{
#ifdef CONFIG_DEBUG_FS
debugfs_remove_recursive(f2fs_debugfs_root);
f2fs_debugfs_root = NULL;
#endif
}
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