Commit f238eff9 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: add a proc entry show disk layout 



This patch adds the disk map of block address ranges configured by multiple
partitions.

Reviewed-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 45809cd3

fs/f2fs/sysfs.c

+46 −0
Original line number Diff line number Diff line
@@ -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);