linux-kernel - Re: [f2fs-dev] [PATCH 1/2 v2] f2fs: use crc and cp version to determine roll-forward recovery

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Message-ID: <5758dbdd-610e-64cf-3cef-44794e5b32b4@kernel.org>
Date:   Sat, 1 Oct 2016 08:26:20 +0800
From:   Chao Yu <chao@...nel.org>
To:     Jaegeuk Kim <jaegeuk@...nel.org>, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH 1/2 v2] f2fs: use crc and cp version to
 determine roll-forward recovery

On 2016/10/1 1:10, Jaegeuk Kim wrote:
> @@ -1089,6 +1079,9 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
>  	if (is_sbi_flag_set(sbi, SBI_NEED_FSCK))
>  		set_ckpt_flags(ckpt, CP_FSCK_FLAG);
>  
> +	/* set this flag to activate crc|cp_ver for recovery */
> +	set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG);

Should let new introduced spinlock cover the flag updating in ("f2fs: introduce
cp_lock to protect updating of ckpt_flags").

Thanks,