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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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#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_SPINLOCK(f2fs_stat_lock);#ifdef CONFIG_DEBUG_FSstatic 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_FSstatic void update_multidevice_stats(struct f2fs_sb_info *sbi){ struct f2fs_stat_info *si = F2FS_STAT(sbi); struct f2fs_dev_stats *dev_stats = si->dev_stats; int i, j;
if (!f2fs_is_multi_device(sbi)) return;
memset(dev_stats, 0, sizeof(struct f2fs_dev_stats) * sbi->s_ndevs); for (i = 0; i < sbi->s_ndevs; i++) { unsigned int start_segno, end_segno; block_t start_blk, end_blk;
if (i == 0) { start_blk = MAIN_BLKADDR(sbi); end_blk = FDEV(i).end_blk + 1 - SEG0_BLKADDR(sbi); } else { start_blk = FDEV(i).start_blk; end_blk = FDEV(i).end_blk + 1; }
start_segno = GET_SEGNO(sbi, start_blk); end_segno = GET_SEGNO(sbi, end_blk);
for (j = start_segno; j < end_segno; j++) { unsigned int seg_blks, sec_blks;
seg_blks = get_seg_entry(sbi, j)->valid_blocks;
/* update segment stats */ if (is_curseg(sbi, j)) dev_stats[i].devstats[0][DEVSTAT_INUSE]++; else if (seg_blks == BLKS_PER_SEG(sbi)) dev_stats[i].devstats[0][DEVSTAT_FULL]++; else if (seg_blks != 0) dev_stats[i].devstats[0][DEVSTAT_DIRTY]++; else if (!test_bit(j, FREE_I(sbi)->free_segmap)) dev_stats[i].devstats[0][DEVSTAT_FREE]++; else dev_stats[i].devstats[0][DEVSTAT_PREFREE]++;
if (!__is_large_section(sbi) || (j % SEGS_PER_SEC(sbi)) != 0) continue;
sec_blks = get_sec_entry(sbi, j)->valid_blocks;
/* update section stats */ if (is_cursec(sbi, GET_SEC_FROM_SEG(sbi, j))) dev_stats[i].devstats[1][DEVSTAT_INUSE]++; else if (sec_blks == BLKS_PER_SEC(sbi)) dev_stats[i].devstats[1][DEVSTAT_FULL]++; else if (sec_blks != 0) dev_stats[i].devstats[1][DEVSTAT_DIRTY]++; else if (!test_bit(GET_SEC_FROM_SEG(sbi, j), FREE_I(sbi)->free_secmap)) dev_stats[i].devstats[1][DEVSTAT_FREE]++; else dev_stats[i].devstats[1][DEVSTAT_PREFREE]++; } }}
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->ndonate_files = sbi->donate_files; 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->blkoff[i] = curseg->next_blkoff; 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; }
update_multidevice_stats(sbi);
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", [SBI_ENABLE_CHECKPOINT] = "enable_checkpoint",};
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;
spin_lock(&f2fs_stat_lock); 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, " - Donate Inode: %u\n", si->ndonate_files); 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 %8s %10s %10s %10s\n", "blkoff", "segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk"); seq_printf(s, " - COLD data: %8d %8d %8d %8d %10u %10u %10u\n", si->blkoff[CURSEG_COLD_DATA], 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 %8d %10u %10u %10u\n", si->blkoff[CURSEG_WARM_DATA], 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 %8d %10u %10u %10u\n", si->blkoff[CURSEG_HOT_DATA], 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 %8d %10u %10u %10u\n", si->blkoff[CURSEG_HOT_NODE], 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 %8d %10u %10u %10u\n", si->blkoff[CURSEG_WARM_NODE], 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 %8d %10u %10u %10u\n", si->blkoff[CURSEG_COLD_NODE], 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 %8d\n", si->blkoff[CURSEG_COLD_DATA_PINNED], 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 %8d\n", si->blkoff[CURSEG_ALL_DATA_ATGC], 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); if (f2fs_is_multi_device(sbi)) { seq_puts(s, "Multidevice stats:\n"); seq_printf(s, " [seg: %8s %8s %8s %8s %8s]", "inuse", "dirty", "full", "free", "prefree"); if (__is_large_section(sbi)) seq_printf(s, " [sec: %8s %8s %8s %8s %8s]\n", "inuse", "dirty", "full", "free", "prefree"); else seq_puts(s, "\n");
for (i = 0; i < sbi->s_ndevs; i++) { seq_printf(s, " #%-2d %8u %8u %8u %8u %8u", i, si->dev_stats[i].devstats[0][DEVSTAT_INUSE], si->dev_stats[i].devstats[0][DEVSTAT_DIRTY], si->dev_stats[i].devstats[0][DEVSTAT_FULL], si->dev_stats[i].devstats[0][DEVSTAT_FREE], si->dev_stats[i].devstats[0][DEVSTAT_PREFREE]); if (!__is_large_section(sbi)) { seq_puts(s, "\n"); continue; } seq_printf(s, " %8u %8u %8u %8u %8u\n", si->dev_stats[i].devstats[1][DEVSTAT_INUSE], si->dev_stats[i].devstats[1][DEVSTAT_DIRTY], si->dev_stats[i].devstats[1][DEVSTAT_FULL], si->dev_stats[i].devstats[1][DEVSTAT_FREE], si->dev_stats[i].devstats[1][DEVSTAT_PREFREE]); } seq_puts(s, "\n"); } 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_printf(s, "defrag blocks : %u\n", si->defrag_blks); 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, " - data: %4d in files:%4d\n", si->ndirty_data, si->ndirty_files); seq_printf(s, " - quota data: %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); } spin_unlock(&f2fs_stat_lock); 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; struct f2fs_dev_stats *dev_stats; int i;
si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL); if (!si) return -ENOMEM;
dev_stats = f2fs_kzalloc(sbi, sizeof(struct f2fs_dev_stats) * sbi->s_ndevs, GFP_KERNEL); if (!dev_stats) { kfree(si); return -ENOMEM; }
si->dev_stats = dev_stats;
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);
spin_lock(&f2fs_stat_lock); list_add_tail(&si->stat_list, &f2fs_stat_list); spin_unlock(&f2fs_stat_lock);
return 0;}
void f2fs_destroy_stats(struct f2fs_sb_info *sbi){ struct f2fs_stat_info *si = F2FS_STAT(sbi);
spin_lock(&f2fs_stat_lock); list_del(&si->stat_list); spin_unlock(&f2fs_stat_lock);
kfree(si->dev_stats); 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}