linux-kernel - Re: [f2fs-dev] [PATCH] f2fs-tools: do not put CP_UMOUNT

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Date:   Wed, 15 Nov 2023 22:56:57 +0800
From:   Chao Yu <chao@...nel.org>
To:     Daeho Jeong <daeho43@...il.com>, linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, kernel-team@...roid.com
Cc:     Daeho Jeong <daehojeong@...gle.com>
Subject: Re: [f2fs-dev] [PATCH] f2fs-tools: do not put CP_UMOUNT_FLAG for roll
 forward recovery

On 2023/10/27 23:49, Daeho Jeong wrote:
> From: Daeho Jeong <daehojeong@...gle.com>
> 
> If we write CP_UMOUNT_FLAG in fsck, f2fs will not do foll forward recovery

:s/foll/roll

Otherwise, it looks good to me.

Reviewed-by: Chao Yu <chao@...nel.org>

Thanks,

> even though it has to do.
> 
> Signed-off-by: Daeho Jeong <daehojeong@...gle.com>
> ---
>   fsck/fsck.c       | 3 ++-
>   fsck/mount.c      | 5 ++++-
>   include/f2fs_fs.h | 1 +
>   3 files changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/fsck/fsck.c b/fsck/fsck.c
> index f1a55db..126458c 100644
> --- a/fsck/fsck.c
> +++ b/fsck/fsck.c
> @@ -2526,7 +2526,8 @@ static void fix_checkpoint(struct f2fs_sb_info *sbi)
>   	struct f2fs_super_block *sb = F2FS_RAW_SUPER(sbi);
>   	struct f2fs_checkpoint *cp = F2FS_CKPT(sbi);
>   	unsigned long long cp_blk_no;
> -	u32 flags = c.alloc_failed ? CP_FSCK_FLAG: CP_UMOUNT_FLAG;
> +	u32 flags = c.alloc_failed ? CP_FSCK_FLAG :
> +			(c.roll_forward ? 0 : CP_UMOUNT_FLAG);
>   	block_t orphan_blks = 0;
>   	block_t cp_blocks;
>   	u32 i;
> diff --git a/fsck/mount.c b/fsck/mount.c
> index 3b02d73..805671c 100644
> --- a/fsck/mount.c
> +++ b/fsck/mount.c
> @@ -3218,7 +3218,7 @@ void write_checkpoint(struct f2fs_sb_info *sbi)
>   	struct f2fs_super_block *sb = F2FS_RAW_SUPER(sbi);
>   	block_t orphan_blks = 0;
>   	unsigned long long cp_blk_no;
> -	u32 flags = CP_UMOUNT_FLAG;
> +	u32 flags = c.roll_forward ? 0 : CP_UMOUNT_FLAG;
>   	int i, ret;
>   	uint32_t crc = 0;
>   
> @@ -3837,6 +3837,9 @@ static int record_fsync_data(struct f2fs_sb_info *sbi)
>   	if (ret)
>   		goto out;
>   
> +	if (c.func == FSCK && inode_list.next != &inode_list)
> +		c.roll_forward = 1;
> +
>   	ret = late_build_segment_manager(sbi);
>   	if (ret < 0) {
>   		ERR_MSG("late_build_segment_manager failed\n");
> diff --git a/include/f2fs_fs.h b/include/f2fs_fs.h
> index abd5abf..faa5d6b 100644
> --- a/include/f2fs_fs.h
> +++ b/include/f2fs_fs.h
> @@ -1513,6 +1513,7 @@ struct f2fs_configuration {
>   	unsigned int feature;			/* defined features */
>   	unsigned int quota_bits;	/* quota bits */
>   	time_t fixed_time;
> +	int roll_forward;
>   
>   	/* mkfs parameters */
>   	int fake_seed;