linux-kernel - Re: [f2fs-dev] [PATCH] f2fs: fix wrong segment count

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Message-ID: <1a66e32b-efc0-626b-b585-7f2bfac506a7@kernel.org>
Date:   Mon, 13 Feb 2023 17:41:58 +0800
From:   Chao Yu <chao@...nel.org>
To:     Jaegeuk Kim <jaegeuk@...nel.org>, linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH] f2fs: fix wrong segment count

On 2023/2/11 5:32, Jaegeuk Kim wrote:
> MAIN_SEGS is for data area, while TOTAL_SEGS includes data and metadata.

Good catch!

Could you please add fixes line?

Thanks,

> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
> ---
>   fs/f2fs/segment.h | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
> index 8ee5e5db9287..6003fbaf4b7d 100644
> --- a/fs/f2fs/segment.h
> +++ b/fs/f2fs/segment.h
> @@ -720,7 +720,7 @@ static inline unsigned char curseg_alloc_type(struct f2fs_sb_info *sbi,
>   
>   static inline void check_seg_range(struct f2fs_sb_info *sbi, unsigned int segno)
>   {
> -	f2fs_bug_on(sbi, segno > TOTAL_SEGS(sbi) - 1);
> +	f2fs_bug_on(sbi, segno > MAIN_SEGS(sbi) - 1);
>   }
>   
>   static inline void verify_fio_blkaddr(struct f2fs_io_info *fio)
> @@ -775,7 +775,7 @@ static inline int check_block_count(struct f2fs_sb_info *sbi,
>   
>   	/* check segment usage, and check boundary of a given segment number */
>   	if (unlikely(GET_SIT_VBLOCKS(raw_sit) > usable_blks_per_seg
> -					|| segno > TOTAL_SEGS(sbi) - 1)) {
> +					|| segno > MAIN_SEGS(sbi) - 1)) {
>   		f2fs_err(sbi, "Wrong valid blocks %d or segno %u",
>   			 GET_SIT_VBLOCKS(raw_sit), segno);
>   		set_sbi_flag(sbi, SBI_NEED_FSCK);