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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2024-03-04 15:16:56 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2024-03-06 09:43:26 -0800 |
| commit | f238eff95f485b9e8a1b1a8d4602e8e9d0ae331d (patch) | |
| tree | e7613275b247187eb18158710c2652545b9e1d17 /fs/f2fs | |
| parent | 45809cd3bdac8743f08e42a32121e035aee69d88 (diff) | |
| download | linux-f238eff95f485b9e8a1b1a8d4602e8e9d0ae331d.tar.gz linux-f238eff95f485b9e8a1b1a8d4602e8e9d0ae331d.tar.bz2 linux-f238eff95f485b9e8a1b1a8d4602e8e9d0ae331d.zip | |
f2fs: add a proc entry show disk layout
This patch adds the disk map of block address ranges configured by multiple
partitions.
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/sysfs.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 10f308b3128f..a568ce96cf56 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -1492,6 +1492,50 @@ static int __maybe_unused discard_plist_seq_show(struct seq_file *seq, return 0; } +static int __maybe_unused disk_map_seq_show(struct seq_file *seq, + void *offset) +{ + struct super_block *sb = seq->private; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + int i; + + seq_printf(seq, "Address Layout : %5luB Block address (# of Segments)\n", + F2FS_BLKSIZE); + seq_printf(seq, " SB : %12s\n", "0/1024B"); + seq_printf(seq, " seg0_blkaddr : 0x%010x\n", SEG0_BLKADDR(sbi)); + seq_printf(seq, " Checkpoint : 0x%010x (%10d)\n", + le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr), 2); + seq_printf(seq, " SIT : 0x%010x (%10d)\n", + SIT_I(sbi)->sit_base_addr, + le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_sit)); + seq_printf(seq, " NAT : 0x%010x (%10d)\n", + NM_I(sbi)->nat_blkaddr, + le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_nat)); + seq_printf(seq, " SSA : 0x%010x (%10d)\n", + SM_I(sbi)->ssa_blkaddr, + le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_ssa)); + seq_printf(seq, " Main : 0x%010x (%10d)\n", + SM_I(sbi)->main_blkaddr, + le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_main)); + seq_printf(seq, " # of Sections : %12d\n", + le32_to_cpu(F2FS_RAW_SUPER(sbi)->section_count)); + seq_printf(seq, " Segs/Sections : %12d\n", + SEGS_PER_SEC(sbi)); + seq_printf(seq, " Section size : %12d MB\n", + SEGS_PER_SEC(sbi) << 1); + + if (!f2fs_is_multi_device(sbi)) + return 0; + + seq_puts(seq, "\nDisk Map for multi devices:\n"); + for (i = 0; i < sbi->s_ndevs; i++) + seq_printf(seq, "Disk:%2d (zoned=%d): 0x%010x - 0x%010x on %s\n", + i, bdev_is_zoned(FDEV(i).bdev), + FDEV(i).start_blk, FDEV(i).end_blk, + FDEV(i).path); + return 0; +} + int __init f2fs_init_sysfs(void) { int ret; @@ -1573,6 +1617,8 @@ int f2fs_register_sysfs(struct f2fs_sb_info *sbi) victim_bits_seq_show, sb); proc_create_single_data("discard_plist_info", 0444, sbi->s_proc, discard_plist_seq_show, sb); + proc_create_single_data("disk_map", 0444, sbi->s_proc, + disk_map_seq_show, sb); return 0; put_feature_list_kobj: kobject_put(&sbi->s_feature_list_kobj); |