In current version, after scan_free_nid_bits, the scan is over if nid_cnt[FREE_NID] != 0. In most cases, there are still free nids in the free list during the scan, and scan_free_nid_bits usually can't increase nid_cnt[FREE_NID]. It causes that __build_free_nids is called many times without solving the shortage of the free nids. This patch fixes that.
Signed-off-by: Fan li <fanofcode...@samsung.com> --- fs/f2fs/node.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 3d0d1be..5cef118 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -2010,7 +2010,7 @@ static void __build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount) /* try to find free nids in free_nid_bitmap */ scan_free_nid_bits(sbi); - if (nm_i->nid_cnt[FREE_NID]) + if (nm_i->nid_cnt[FREE_NID] >= NAT_ENTRY_PER_BLOCK) return; } -- 2.7.4