f2fs: add stat info for moved blocks by background gc

This patch is for looking into gc performance of f2fs in detail.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
[Jaegeuk Kim: fix build errors]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

1 files changed, 10 insertions, 5 deletions

diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 1006290ed6b8..f5388f37217e 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -265,11 +265,16 @@ static int stat_show(struct seq_file *s, void *v)
                 seq_printf(s, "CP calls: %d\n", si->cp_count);
                 seq_printf(s, "GC calls: %d (BG: %d)\n",
                            si->call_count, si->bg_gc);
-                seq_printf(s, "  - data segments : %d\n", si->data_segs);
-                seq_printf(s, "  - node segments : %d\n", si->node_segs);
-                seq_printf(s, "Try to move %d blocks\n", si->tot_blks);
-                seq_printf(s, "  - data blocks : %d\n", si->data_blks);
-                seq_printf(s, "  - node blocks : %d\n", si->node_blks);
+                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, "\nExtent Hit Ratio: %d / %d\n",
                            si->hit_ext, si->total_ext);
                 seq_printf(s, "\nExtent Tree Count: %d\n", si->ext_tree);