Show mtime in segment_bits for debug.

cat /proc/fs//f2fs/loop0/segment_bits
format: segment_type|valid_blocks|bitmaps|mtime
segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)
0         3|1  | 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00| ffffffffffffffff
1         4|3  | 00 d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00| ffffffffffffffff
2         5|0  | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00| ffffffffffffffff
3         0|1  | 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00| ffffffffffffffff

Signed-off-by: Chao Yu <c...@kernel.org>
---
 fs/f2fs/sysfs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index f81190fabdd3..b01c5984cf22 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -1480,7 +1480,7 @@ static int __maybe_unused segment_bits_seq_show(struct 
seq_file *seq,
                        le32_to_cpu(sbi->raw_super->segment_count_main);
        int i, j;
 
-       seq_puts(seq, "format: segment_type|valid_blocks|bitmaps\n"
+       seq_puts(seq, "format: segment_type|valid_blocks|bitmaps|mtime\n"
                "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
 
        for (i = 0; i < total_segs; i++) {
@@ -1490,6 +1490,7 @@ static int __maybe_unused segment_bits_seq_show(struct 
seq_file *seq,
                seq_printf(seq, "%d|%-3u|", se->type, se->valid_blocks);
                for (j = 0; j < SIT_VBLOCK_MAP_SIZE; j++)
                        seq_printf(seq, " %.2x", se->cur_valid_map[j]);
+               seq_printf(seq, "| %llx", se->mtime);
                seq_putc(seq, '\n');
        }
        return 0;
-- 
2.48.1.262.g85cc9f2d1e-goog



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