linux-ext4 - Re: [PATCH 2/2] ext2: code cleanup for ext2_free

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Date:   Tue, 30 Jul 2019 18:10:19 +0200
From:   Jan Kara <jack@...e.cz>
To:     Chengguang Xu <cgxu519@...o.com.cn>
Cc:     Jan Kara <jack@...e.com>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH 2/2] ext2: code cleanup for ext2_free_blocks()

On Tue 23-07-19 19:21:55, Chengguang Xu wrote:
> Call ext2_data_block_valid() for block range validity.
> 
> Signed-off-by: Chengguang Xu <cgxu519@...o.com.cn>

Thanks for both patches. I've added them to my tree.

								Honza

> ---
>  fs/ext2/balloc.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
> index 92e9a7489174..e0cc55164505 100644
> --- a/fs/ext2/balloc.c
> +++ b/fs/ext2/balloc.c
> @@ -490,9 +490,7 @@ void ext2_free_blocks (struct inode * inode, unsigned long block,
>  	struct ext2_super_block * es = sbi->s_es;
>  	unsigned freed = 0, group_freed;
>  
> -	if (block < le32_to_cpu(es->s_first_data_block) ||
> -	    block + count < block ||
> -	    block + count > le32_to_cpu(es->s_blocks_count)) {
> +	if (!ext2_data_block_valid(sbi, block, count)) {
>  		ext2_error (sb, "ext2_free_blocks",
>  			    "Freeing blocks not in datazone - "
>  			    "block = %lu, count = %lu", block, count);
> -- 
> 2.20.1
> 
> 
> 
> 
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR