linux-kernel - Re: [RESEND] f2fs: set default compress option only when sb_has

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Message-ID: <b5f99276-29cd-ca61-abc2-a927d992f40a@kernel.org>
Date:   Wed, 5 Apr 2023 10:51:58 +0800
From:   Chao Yu <chao@...nel.org>
To:     Yangtao Li <frank.li@...o.com>, Jaegeuk Kim <jaegeuk@...nel.org>
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org
Subject: Re: [RESEND] f2fs: set default compress option only when
 sb_has_compression

On 2023/3/31 0:56, Yangtao Li wrote:
> If the compress feature is not enabled, there is no need to set
> compress-related parameters.
> 
> Signed-off-by: Yangtao Li <frank.li@...o.com>

Patch looks fine, but it's better to fix similar issues in one
patch.

e.g.
f2fs: add compression feature check for all compress mount opt

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

Thanks,

> ---
>   fs/f2fs/super.c | 10 ++++++----
>   1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
> index 768be1c76a47..b5828a67f7c1 100644
> --- a/fs/f2fs/super.c
> +++ b/fs/f2fs/super.c
> @@ -2073,10 +2073,12 @@ static void default_options(struct f2fs_sb_info *sbi)
>   	F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
>   	F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID);
>   	F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID);
> -	F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
> -	F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
> -	F2FS_OPTION(sbi).compress_ext_cnt = 0;
> -	F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
> +	if (f2fs_sb_has_compression(sbi)) {
> +		F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
> +		F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
> +		F2FS_OPTION(sbi).compress_ext_cnt = 0;
> +		F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
> +	}
>   	F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
>   	F2FS_OPTION(sbi).memory_mode = MEMORY_MODE_NORMAL;
>