From b702c83e2eaa2fa2d72e957c55c0321535cc8b9f Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Sun, 12 Dec 2021 20:28:12 +0800
Subject: f2fs: fix to check available space of CP area correctly in
update_ckpt_flags()
Otherwise, nat_bit area may be persisted across boundary of CP area during
nat_bit rebuilding.
Fixes: 94c821fb286b ("f2fs: rebuild nat_bits during umount")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/checkpoint.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'fs/f2fs/checkpoint.c')
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 55e3c54d99c1..982f0170639f 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1302,8 +1302,8 @@ static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc)
unsigned long flags;
if (cpc->reason & CP_UMOUNT) {
- if (le32_to_cpu(ckpt->cp_pack_total_block_count) >
- sbi->blocks_per_seg - NM_I(sbi)->nat_bits_blocks) {
+ if (le32_to_cpu(ckpt->cp_pack_total_block_count) +
+ NM_I(sbi)->nat_bits_blocks > sbi->blocks_per_seg) {
clear_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
f2fs_notice(sbi, "Disable nat_bits due to no space");
} else if (!is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG) &&
--
cgit v1.2.1