Commit b702c83e authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

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: 94c821fb ("f2fs: rebuild nat_bits during umount")
Signed-off-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 3e020389

fs/f2fs/checkpoint.c

+2 −2
Original line number Diff line number Diff line
@@ -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) &&