This can help us to debug on some corner case.
Signed-off-by: Yunlong Song <yunlong.song@xxxxxxxxxx>
Signed-off-by: Chao Yu <yuchao0@xxxxxxxxxx>
---
fs/f2fs/gc.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 197ebf4..2b03202 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -986,6 +986,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync,
.ilist = LIST_HEAD_INIT(gc_list.ilist),
.iroot = RADIX_TREE_INIT(GFP_NOFS),
};
+ bool need_fggc = false;
trace_f2fs_gc_begin(sbi->sb, sync, background,
get_pages(sbi, F2FS_DIRTY_NODES),
@@ -1018,8 +1019,10 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync,
if (ret)
goto stop;
}
- if (has_not_enough_free_secs(sbi, 0, 0))
+ if (has_not_enough_free_secs(sbi, 0, 0)) {
gc_type = FG_GC;
+ need_fggc = true;
+ }
}
/* f2fs_balance_fs doesn't need to do BG_GC in critical path. */
@@ -1028,6 +1031,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync,
goto stop;
}
if (!__get_victim(sbi, &segno, gc_type)) {
+ f2fs_bug_on(sbi, !total_freed && need_fggc);
ret = -ENODATA;
goto stop;
}
--
1.8.5.2
