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Date:   Tue, 28 Jun 2022 15:46:28 +0800
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Subject: Re: [f2fs-dev] [PATCH 1/3 v2] f2fs: attach inline_data after setting
 compression
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To:     Jaegeuk Kim <jaegeuk@kernel.org>, linux-kernel@vger.kernel.org,
        linux-f2fs-devel@lists.sourceforge.net
Cc:     stable@vger.kernel.org
References: <20220617223106.3517374-1-jaegeuk@kernel.org>
 <YrNJBMGpjPdtwVY+@google.com>
From:   Chao Yu <chao@kernel.org>
In-Reply-To: <YrNJBMGpjPdtwVY+@google.com>
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On 2022/6/23 0:53, Jaegeuk Kim wrote:
> This fixes the below corruption.
> 
> [345393.335389] F2FS-fs (vdb): sanity_check_inode: inode (ino=6d0, mode=33206) should not have inline_data, run fsck to fix
> 
> Cc: <stable@vger.kernel.org>
> Fixes: 677a82b44ebf ("f2fs: fix to do sanity check for inline inode")
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
> ---
>   fs/f2fs/namei.c | 17 +++++++++++------
>   1 file changed, 11 insertions(+), 6 deletions(-)
> 
> diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
> index c549acb52ac4..bf00d5057abb 100644
> --- a/fs/f2fs/namei.c
> +++ b/fs/f2fs/namei.c
> @@ -89,8 +89,6 @@ static struct inode *f2fs_new_inode(struct user_namespace *mnt_userns,
>   	if (test_opt(sbi, INLINE_XATTR))
>   		set_inode_flag(inode, FI_INLINE_XATTR);
>   
> -	if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
> -		set_inode_flag(inode, FI_INLINE_DATA);
>   	if (f2fs_may_inline_dentry(inode))
>   		set_inode_flag(inode, FI_INLINE_DENTRY);
>   
> @@ -107,10 +105,6 @@ static struct inode *f2fs_new_inode(struct user_namespace *mnt_userns,
>   
>   	f2fs_init_extent_tree(inode, NULL);
>   
> -	stat_inc_inline_xattr(inode);
> -	stat_inc_inline_inode(inode);
> -	stat_inc_inline_dir(inode);
> -
>   	F2FS_I(inode)->i_flags =
>   		f2fs_mask_flags(mode, F2FS_I(dir)->i_flags & F2FS_FL_INHERITED);
>   
> @@ -127,6 +121,14 @@ static struct inode *f2fs_new_inode(struct user_namespace *mnt_userns,
>   			set_compress_context(inode);
>   	}
>   
> +	/* Should enable inline_data after compression set */
> +	if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
> +		set_inode_flag(inode, FI_INLINE_DATA);
> +
> +	stat_inc_inline_xattr(inode);
> +	stat_inc_inline_inode(inode);
> +	stat_inc_inline_dir(inode);
> +
>   	f2fs_set_inode_flags(inode);
>   
>   	trace_f2fs_new_inode(inode, 0);
> @@ -325,6 +327,9 @@ static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode,
>   		if (!is_extension_exist(name, ext[i], false))
>   			continue;
>   
> +		/* Do not use inline_data with compression */
> +		stat_dec_inline_inode(inode);
> +		clear_inode_flag(inode, FI_INLINE_DATA);

It looks we don't need to dirty inode if there is no inline_data flag.

Thanks,

>   		set_compress_context(inode);
>   		return;
>   	}