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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>
This commit is contained in:
Jaegeuk Kim 2024-03-04 15:16:56 -08:00
parent 45809cd3bd
commit f238eff95f
1 changed files with 46 additions and 0 deletions
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46
fs/f2fs/sysfs.c
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@ -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);