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625 lines
22 KiB
625 lines
22 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* f2fs debugging statistics |
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* |
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* Copyright (c) 2012 Samsung Electronics Co., Ltd. |
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* http://www.samsung.com/ |
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* Copyright (c) 2012 Linux Foundation |
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* Copyright (c) 2012 Greg Kroah-Hartman <[email protected]> |
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*/ |
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|
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#include <linux/fs.h> |
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#include <linux/backing-dev.h> |
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#include <linux/f2fs_fs.h> |
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#include <linux/blkdev.h> |
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#include <linux/debugfs.h> |
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#include <linux/seq_file.h> |
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|
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#include "f2fs.h" |
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#include "node.h" |
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#include "segment.h" |
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#include "gc.h" |
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|
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static LIST_HEAD(f2fs_stat_list); |
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static DEFINE_MUTEX(f2fs_stat_mutex); |
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#ifdef CONFIG_DEBUG_FS |
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static struct dentry *f2fs_debugfs_root; |
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#endif |
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|
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/* |
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* This function calculates BDF of every segments |
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*/ |
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void f2fs_update_sit_info(struct f2fs_sb_info *sbi) |
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{ |
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struct f2fs_stat_info *si = F2FS_STAT(sbi); |
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unsigned long long blks_per_sec, hblks_per_sec, total_vblocks; |
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unsigned long long bimodal, dist; |
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unsigned int segno, vblocks; |
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int ndirty = 0; |
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bimodal = 0; |
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total_vblocks = 0; |
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blks_per_sec = BLKS_PER_SEC(sbi); |
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hblks_per_sec = blks_per_sec / 2; |
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for (segno = 0; segno < MAIN_SEGS(sbi); segno += sbi->segs_per_sec) { |
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vblocks = get_valid_blocks(sbi, segno, true); |
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dist = abs(vblocks - hblks_per_sec); |
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bimodal += dist * dist; |
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if (vblocks > 0 && vblocks < blks_per_sec) { |
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total_vblocks += vblocks; |
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ndirty++; |
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} |
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} |
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dist = div_u64(MAIN_SECS(sbi) * hblks_per_sec * hblks_per_sec, 100); |
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si->bimodal = div64_u64(bimodal, dist); |
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if (si->dirty_count) |
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si->avg_vblocks = div_u64(total_vblocks, ndirty); |
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else |
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si->avg_vblocks = 0; |
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} |
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#ifdef CONFIG_DEBUG_FS |
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static void update_general_status(struct f2fs_sb_info *sbi) |
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{ |
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struct f2fs_stat_info *si = F2FS_STAT(sbi); |
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struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
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int i; |
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/* these will be changed if online resize is done */ |
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si->main_area_segs = le32_to_cpu(raw_super->segment_count_main); |
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si->main_area_sections = le32_to_cpu(raw_super->section_count); |
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si->main_area_zones = si->main_area_sections / |
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le32_to_cpu(raw_super->secs_per_zone); |
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/* validation check of the segment numbers */ |
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si->hit_largest = atomic64_read(&sbi->read_hit_largest); |
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si->hit_cached = atomic64_read(&sbi->read_hit_cached); |
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si->hit_rbtree = atomic64_read(&sbi->read_hit_rbtree); |
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si->hit_total = si->hit_largest + si->hit_cached + si->hit_rbtree; |
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si->total_ext = atomic64_read(&sbi->total_hit_ext); |
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si->ext_tree = atomic_read(&sbi->total_ext_tree); |
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si->zombie_tree = atomic_read(&sbi->total_zombie_tree); |
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si->ext_node = atomic_read(&sbi->total_ext_node); |
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si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES); |
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si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS); |
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si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META); |
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si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA); |
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si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA); |
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si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA); |
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si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE]; |
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si->ndirty_files = sbi->ndirty_inode[FILE_INODE]; |
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si->nquota_files = sbi->nquota_files; |
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si->ndirty_all = sbi->ndirty_inode[DIRTY_META]; |
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si->inmem_pages = get_pages(sbi, F2FS_INMEM_PAGES); |
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si->aw_cnt = sbi->atomic_files; |
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si->vw_cnt = atomic_read(&sbi->vw_cnt); |
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si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt); |
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si->max_vw_cnt = atomic_read(&sbi->max_vw_cnt); |
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si->nr_dio_read = get_pages(sbi, F2FS_DIO_READ); |
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si->nr_dio_write = get_pages(sbi, F2FS_DIO_WRITE); |
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si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA); |
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si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA); |
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si->nr_rd_data = get_pages(sbi, F2FS_RD_DATA); |
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si->nr_rd_node = get_pages(sbi, F2FS_RD_NODE); |
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si->nr_rd_meta = get_pages(sbi, F2FS_RD_META); |
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if (SM_I(sbi)->fcc_info) { |
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si->nr_flushed = |
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atomic_read(&SM_I(sbi)->fcc_info->issued_flush); |
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si->nr_flushing = |
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atomic_read(&SM_I(sbi)->fcc_info->queued_flush); |
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si->flush_list_empty = |
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llist_empty(&SM_I(sbi)->fcc_info->issue_list); |
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} |
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if (SM_I(sbi)->dcc_info) { |
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si->nr_discarded = |
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atomic_read(&SM_I(sbi)->dcc_info->issued_discard); |
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si->nr_discarding = |
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atomic_read(&SM_I(sbi)->dcc_info->queued_discard); |
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si->nr_discard_cmd = |
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atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt); |
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si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks; |
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} |
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si->nr_issued_ckpt = atomic_read(&sbi->cprc_info.issued_ckpt); |
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si->nr_total_ckpt = atomic_read(&sbi->cprc_info.total_ckpt); |
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si->nr_queued_ckpt = atomic_read(&sbi->cprc_info.queued_ckpt); |
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spin_lock(&sbi->cprc_info.stat_lock); |
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si->cur_ckpt_time = sbi->cprc_info.cur_time; |
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si->peak_ckpt_time = sbi->cprc_info.peak_time; |
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spin_unlock(&sbi->cprc_info.stat_lock); |
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si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg; |
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si->rsvd_segs = reserved_segments(sbi); |
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si->overp_segs = overprovision_segments(sbi); |
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si->valid_count = valid_user_blocks(sbi); |
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si->discard_blks = discard_blocks(sbi); |
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si->valid_node_count = valid_node_count(sbi); |
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si->valid_inode_count = valid_inode_count(sbi); |
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si->inline_xattr = atomic_read(&sbi->inline_xattr); |
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si->inline_inode = atomic_read(&sbi->inline_inode); |
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si->inline_dir = atomic_read(&sbi->inline_dir); |
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si->compr_inode = atomic_read(&sbi->compr_inode); |
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si->compr_blocks = atomic64_read(&sbi->compr_blocks); |
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si->append = sbi->im[APPEND_INO].ino_num; |
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si->update = sbi->im[UPDATE_INO].ino_num; |
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si->orphans = sbi->im[ORPHAN_INO].ino_num; |
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si->utilization = utilization(sbi); |
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si->free_segs = free_segments(sbi); |
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si->free_secs = free_sections(sbi); |
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si->prefree_count = prefree_segments(sbi); |
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si->dirty_count = dirty_segments(sbi); |
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if (sbi->node_inode) |
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si->node_pages = NODE_MAPPING(sbi)->nrpages; |
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if (sbi->meta_inode) |
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si->meta_pages = META_MAPPING(sbi)->nrpages; |
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#ifdef CONFIG_F2FS_FS_COMPRESSION |
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if (sbi->compress_inode) { |
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si->compress_pages = COMPRESS_MAPPING(sbi)->nrpages; |
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si->compress_page_hit = atomic_read(&sbi->compress_page_hit); |
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} |
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#endif |
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si->nats = NM_I(sbi)->nat_cnt[TOTAL_NAT]; |
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si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT]; |
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si->sits = MAIN_SEGS(sbi); |
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si->dirty_sits = SIT_I(sbi)->dirty_sentries; |
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si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID]; |
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si->avail_nids = NM_I(sbi)->available_nids; |
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si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID]; |
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si->io_skip_bggc = sbi->io_skip_bggc; |
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si->other_skip_bggc = sbi->other_skip_bggc; |
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si->skipped_atomic_files[BG_GC] = sbi->skipped_atomic_files[BG_GC]; |
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si->skipped_atomic_files[FG_GC] = sbi->skipped_atomic_files[FG_GC]; |
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si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg) |
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* 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) |
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/ 2; |
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si->util_valid = (int)(written_block_count(sbi) >> |
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sbi->log_blocks_per_seg) |
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* 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) |
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/ 2; |
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si->util_invalid = 50 - si->util_free - si->util_valid; |
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for (i = CURSEG_HOT_DATA; i < NO_CHECK_TYPE; i++) { |
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struct curseg_info *curseg = CURSEG_I(sbi, i); |
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si->curseg[i] = curseg->segno; |
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si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno); |
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si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]); |
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} |
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for (i = META_CP; i < META_MAX; i++) |
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si->meta_count[i] = atomic_read(&sbi->meta_count[i]); |
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for (i = 0; i < NO_CHECK_TYPE; i++) { |
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si->dirty_seg[i] = 0; |
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si->full_seg[i] = 0; |
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si->valid_blks[i] = 0; |
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} |
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for (i = 0; i < MAIN_SEGS(sbi); i++) { |
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int blks = get_seg_entry(sbi, i)->valid_blocks; |
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int type = get_seg_entry(sbi, i)->type; |
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if (!blks) |
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continue; |
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if (blks == sbi->blocks_per_seg) |
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si->full_seg[type]++; |
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else |
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si->dirty_seg[type]++; |
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si->valid_blks[type] += blks; |
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} |
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for (i = 0; i < 2; i++) { |
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si->segment_count[i] = sbi->segment_count[i]; |
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si->block_count[i] = sbi->block_count[i]; |
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} |
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si->inplace_count = atomic_read(&sbi->inplace_count); |
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} |
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/* |
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* This function calculates memory footprint. |
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*/ |
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static void update_mem_info(struct f2fs_sb_info *sbi) |
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{ |
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struct f2fs_stat_info *si = F2FS_STAT(sbi); |
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int i; |
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if (si->base_mem) |
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goto get_cache; |
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/* build stat */ |
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si->base_mem = sizeof(struct f2fs_stat_info); |
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/* build superblock */ |
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si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize; |
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si->base_mem += 2 * sizeof(struct f2fs_inode_info); |
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si->base_mem += sizeof(*sbi->ckpt); |
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/* build sm */ |
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si->base_mem += sizeof(struct f2fs_sm_info); |
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/* build sit */ |
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si->base_mem += sizeof(struct sit_info); |
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si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry); |
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si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); |
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si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); |
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si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); |
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si->base_mem += SIT_VBLOCK_MAP_SIZE; |
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if (__is_large_section(sbi)) |
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si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry); |
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si->base_mem += __bitmap_size(sbi, SIT_BITMAP); |
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/* build free segmap */ |
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si->base_mem += sizeof(struct free_segmap_info); |
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si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); |
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si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); |
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/* build curseg */ |
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si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE; |
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si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE; |
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/* build dirty segmap */ |
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si->base_mem += sizeof(struct dirty_seglist_info); |
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si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi)); |
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si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); |
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/* build nm */ |
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si->base_mem += sizeof(struct f2fs_nm_info); |
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si->base_mem += __bitmap_size(sbi, NAT_BITMAP); |
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si->base_mem += (NM_I(sbi)->nat_bits_blocks << F2FS_BLKSIZE_BITS); |
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si->base_mem += NM_I(sbi)->nat_blocks * |
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f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK); |
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si->base_mem += NM_I(sbi)->nat_blocks / 8; |
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si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short); |
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get_cache: |
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si->cache_mem = 0; |
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/* build gc */ |
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if (sbi->gc_thread) |
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si->cache_mem += sizeof(struct f2fs_gc_kthread); |
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/* build merge flush thread */ |
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if (SM_I(sbi)->fcc_info) |
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si->cache_mem += sizeof(struct flush_cmd_control); |
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if (SM_I(sbi)->dcc_info) { |
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si->cache_mem += sizeof(struct discard_cmd_control); |
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si->cache_mem += sizeof(struct discard_cmd) * |
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atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt); |
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} |
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/* free nids */ |
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si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID] + |
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NM_I(sbi)->nid_cnt[PREALLOC_NID]) * |
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sizeof(struct free_nid); |
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si->cache_mem += NM_I(sbi)->nat_cnt[TOTAL_NAT] * |
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sizeof(struct nat_entry); |
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si->cache_mem += NM_I(sbi)->nat_cnt[DIRTY_NAT] * |
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sizeof(struct nat_entry_set); |
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si->cache_mem += si->inmem_pages * sizeof(struct inmem_pages); |
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for (i = 0; i < MAX_INO_ENTRY; i++) |
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si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry); |
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si->cache_mem += atomic_read(&sbi->total_ext_tree) * |
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sizeof(struct extent_tree); |
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si->cache_mem += atomic_read(&sbi->total_ext_node) * |
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sizeof(struct extent_node); |
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si->page_mem = 0; |
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if (sbi->node_inode) { |
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unsigned npages = NODE_MAPPING(sbi)->nrpages; |
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si->page_mem += (unsigned long long)npages << PAGE_SHIFT; |
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} |
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if (sbi->meta_inode) { |
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unsigned npages = META_MAPPING(sbi)->nrpages; |
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si->page_mem += (unsigned long long)npages << PAGE_SHIFT; |
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} |
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#ifdef CONFIG_F2FS_FS_COMPRESSION |
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if (sbi->compress_inode) { |
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unsigned npages = COMPRESS_MAPPING(sbi)->nrpages; |
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si->page_mem += (unsigned long long)npages << PAGE_SHIFT; |
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} |
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#endif |
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} |
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static int stat_show(struct seq_file *s, void *v) |
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{ |
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struct f2fs_stat_info *si; |
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int i = 0; |
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int j; |
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mutex_lock(&f2fs_stat_mutex); |
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list_for_each_entry(si, &f2fs_stat_list, stat_list) { |
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update_general_status(si->sbi); |
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seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n", |
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si->sbi->sb->s_bdev, i++, |
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f2fs_readonly(si->sbi->sb) ? "RO": "RW", |
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is_set_ckpt_flags(si->sbi, CP_DISABLED_FLAG) ? |
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"Disabled": (f2fs_cp_error(si->sbi) ? "Error": "Good")); |
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seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ", |
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si->sit_area_segs, si->nat_area_segs); |
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seq_printf(s, "[SSA: %d] [MAIN: %d", |
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si->ssa_area_segs, si->main_area_segs); |
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seq_printf(s, "(OverProv:%d Resv:%d)]\n\n", |
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si->overp_segs, si->rsvd_segs); |
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seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n", |
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ktime_get_boottime_seconds(), |
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SIT_I(si->sbi)->mounted_time); |
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if (test_opt(si->sbi, DISCARD)) |
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seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n", |
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si->utilization, si->valid_count, si->discard_blks); |
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else |
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seq_printf(s, "Utilization: %u%% (%u valid blocks)\n", |
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si->utilization, si->valid_count); |
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|
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seq_printf(s, " - Node: %u (Inode: %u, ", |
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si->valid_node_count, si->valid_inode_count); |
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seq_printf(s, "Other: %u)\n - Data: %u\n", |
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si->valid_node_count - si->valid_inode_count, |
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si->valid_count - si->valid_node_count); |
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seq_printf(s, " - Inline_xattr Inode: %u\n", |
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si->inline_xattr); |
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seq_printf(s, " - Inline_data Inode: %u\n", |
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si->inline_inode); |
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seq_printf(s, " - Inline_dentry Inode: %u\n", |
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si->inline_dir); |
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seq_printf(s, " - Compressed Inode: %u, Blocks: %llu\n", |
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si->compr_inode, si->compr_blocks); |
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seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n", |
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si->orphans, si->append, si->update); |
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seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n", |
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si->main_area_segs, si->main_area_sections, |
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si->main_area_zones); |
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seq_printf(s, " TYPE %8s %8s %8s %10s %10s %10s\n", |
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"segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk"); |
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seq_printf(s, " - COLD data: %8d %8d %8d %10u %10u %10u\n", |
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si->curseg[CURSEG_COLD_DATA], |
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si->cursec[CURSEG_COLD_DATA], |
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si->curzone[CURSEG_COLD_DATA], |
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si->dirty_seg[CURSEG_COLD_DATA], |
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si->full_seg[CURSEG_COLD_DATA], |
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si->valid_blks[CURSEG_COLD_DATA]); |
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seq_printf(s, " - WARM data: %8d %8d %8d %10u %10u %10u\n", |
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si->curseg[CURSEG_WARM_DATA], |
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si->cursec[CURSEG_WARM_DATA], |
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si->curzone[CURSEG_WARM_DATA], |
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si->dirty_seg[CURSEG_WARM_DATA], |
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si->full_seg[CURSEG_WARM_DATA], |
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si->valid_blks[CURSEG_WARM_DATA]); |
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seq_printf(s, " - HOT data: %8d %8d %8d %10u %10u %10u\n", |
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si->curseg[CURSEG_HOT_DATA], |
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si->cursec[CURSEG_HOT_DATA], |
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si->curzone[CURSEG_HOT_DATA], |
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si->dirty_seg[CURSEG_HOT_DATA], |
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si->full_seg[CURSEG_HOT_DATA], |
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si->valid_blks[CURSEG_HOT_DATA]); |
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seq_printf(s, " - Dir dnode: %8d %8d %8d %10u %10u %10u\n", |
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si->curseg[CURSEG_HOT_NODE], |
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si->cursec[CURSEG_HOT_NODE], |
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si->curzone[CURSEG_HOT_NODE], |
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si->dirty_seg[CURSEG_HOT_NODE], |
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si->full_seg[CURSEG_HOT_NODE], |
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si->valid_blks[CURSEG_HOT_NODE]); |
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seq_printf(s, " - File dnode: %8d %8d %8d %10u %10u %10u\n", |
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si->curseg[CURSEG_WARM_NODE], |
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si->cursec[CURSEG_WARM_NODE], |
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si->curzone[CURSEG_WARM_NODE], |
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si->dirty_seg[CURSEG_WARM_NODE], |
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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_count, si->bg_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_printf(s, "CP merge (Queued: %4d, Issued: %4d, Total: %4d, " |
|
"Cur time: %4d(ms), Peak time: %4d(ms))\n", |
|
si->nr_queued_ckpt, si->nr_issued_ckpt, |
|
si->nr_total_ckpt, si->cur_ckpt_time, |
|
si->peak_ckpt_time); |
|
seq_printf(s, "GC calls: %d (BG: %d)\n", |
|
si->call_count, si->bg_gc); |
|
seq_printf(s, " - data segments : %d (%d)\n", |
|
si->data_segs, si->bg_data_segs); |
|
seq_printf(s, " - node segments : %d (%d)\n", |
|
si->node_segs, si->bg_node_segs); |
|
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, "Skipped : atomic write %llu (%llu)\n", |
|
si->skipped_atomic_files[BG_GC] + |
|
si->skipped_atomic_files[FG_GC], |
|
si->skipped_atomic_files[BG_GC]); |
|
seq_printf(s, "BG skip : IO: %u, Other: %u\n", |
|
si->io_skip_bggc, si->other_skip_bggc); |
|
seq_puts(s, "\nExtent Cache:\n"); |
|
seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n", |
|
si->hit_largest, si->hit_cached, |
|
si->hit_rbtree); |
|
seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", |
|
!si->total_ext ? 0 : |
|
div64_u64(si->hit_total * 100, si->total_ext), |
|
si->hit_total, si->total_ext); |
|
seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", |
|
si->ext_tree, si->zombie_tree, si->ext_node); |
|
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), " |
|
"Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n", |
|
si->nr_wb_cp_data, si->nr_wb_data, |
|
si->nr_flushing, si->nr_flushed, |
|
si->flush_list_empty, |
|
si->nr_discarding, si->nr_discarded, |
|
si->nr_discard_cmd, si->undiscard_blks); |
|
seq_printf(s, " - inmem: %4d, atomic IO: %4d (Max. %4d), " |
|
"volatile IO: %4d (Max. %4d)\n", |
|
si->inmem_pages, si->aw_cnt, si->max_aw_cnt, |
|
si->vw_cnt, si->max_vw_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, " - 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(si->sbi); |
|
seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n", |
|
si->bimodal, si->avg_vblocks); |
|
|
|
/* memory footprint */ |
|
update_mem_info(si->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: %llu KB\n", |
|
si->cache_mem >> 10); |
|
seq_printf(s, " - paged : %llu KB\n", |
|
si->page_mem >> 10); |
|
} |
|
mutex_unlock(&f2fs_stat_mutex); |
|
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; |
|
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; |
|
|
|
atomic64_set(&sbi->total_hit_ext, 0); |
|
atomic64_set(&sbi->read_hit_rbtree, 0); |
|
atomic64_set(&sbi->read_hit_largest, 0); |
|
atomic64_set(&sbi->read_hit_cached, 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->inplace_count, 0); |
|
for (i = META_CP; i < META_MAX; i++) |
|
atomic_set(&sbi->meta_count[i], 0); |
|
|
|
atomic_set(&sbi->vw_cnt, 0); |
|
atomic_set(&sbi->max_aw_cnt, 0); |
|
atomic_set(&sbi->max_vw_cnt, 0); |
|
|
|
mutex_lock(&f2fs_stat_mutex); |
|
list_add_tail(&si->stat_list, &f2fs_stat_list); |
|
mutex_unlock(&f2fs_stat_mutex); |
|
|
|
return 0; |
|
} |
|
|
|
void f2fs_destroy_stats(struct f2fs_sb_info *sbi) |
|
{ |
|
struct f2fs_stat_info *si = F2FS_STAT(sbi); |
|
|
|
mutex_lock(&f2fs_stat_mutex); |
|
list_del(&si->stat_list); |
|
mutex_unlock(&f2fs_stat_mutex); |
|
|
|
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", S_IRUGO, 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 |
|
}
|
|
|