linux-kernel - Re: [PATCH v2 08/10] ext4: use ext4_map_query_blocks() in ext4_map

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Message-ID: <20240807174346.2wxfqu3hjrvihwai@quack3>
Date: Wed, 7 Aug 2024 19:43:46 +0200
From: Jan Kara <jack@...e.cz>
To: Zhang Yi <yi.zhang@...weicloud.com>
Cc: linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, tytso@....edu,
	adilger.kernel@...ger.ca, jack@...e.cz, ritesh.list@...il.com,
	yi.zhang@...wei.com, chengzhihao1@...wei.com, yukuai3@...wei.com
Subject: Re: [PATCH v2 08/10] ext4: use ext4_map_query_blocks() in
 ext4_map_blocks()

On Fri 02-08-24 19:51:18, Zhang Yi wrote:
> From: Zhang Yi <yi.zhang@...wei.com>
> 
> The blocks map querying logic in ext4_map_blocks() are the same as
> ext4_map_query_blocks(), so switch to directly use it.
> 
> Signed-off-by: Zhang Yi <yi.zhang@...wei.com>

Sure. Feel free to add:

Reviewed-by: Jan Kara <jack@...e.cz>

								Honza

> ---
>  fs/ext4/inode.c | 22 +---------------------
>  1 file changed, 1 insertion(+), 21 deletions(-)
> 
> diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
> index e9ce1e4e6acb..8bd65a45a26a 100644
> --- a/fs/ext4/inode.c
> +++ b/fs/ext4/inode.c
> @@ -658,27 +658,7 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
>  	 * file system block.
>  	 */
>  	down_read(&EXT4_I(inode)->i_data_sem);
> -	if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) {
> -		retval = ext4_ext_map_blocks(handle, inode, map, 0);
> -	} else {
> -		retval = ext4_ind_map_blocks(handle, inode, map, 0);
> -	}
> -	if (retval > 0) {
> -		unsigned int status;
> -
> -		if (unlikely(retval != map->m_len)) {
> -			ext4_warning(inode->i_sb,
> -				     "ES len assertion failed for inode "
> -				     "%lu: retval %d != map->m_len %d",
> -				     inode->i_ino, retval, map->m_len);
> -			WARN_ON(1);
> -		}
> -
> -		status = map->m_flags & EXT4_MAP_UNWRITTEN ?
> -				EXTENT_STATUS_UNWRITTEN : EXTENT_STATUS_WRITTEN;
> -		ext4_es_insert_extent(inode, map->m_lblk, map->m_len,
> -				      map->m_pblk, status);
> -	}
> +	retval = ext4_map_query_blocks(handle, inode, map);
>  	up_read((&EXT4_I(inode)->i_data_sem));
>  
>  found:
> -- 
> 2.39.2
> 
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR