linux-ext4 - Re: ext4: remove another test in ext4_alloc_file

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Date:   Fri, 21 Oct 2016 11:54:35 +0200
From:   Jan Kara <jack@...e.cz>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     Theodore Ts'o <tytso@....edu>, Fabian Frederick <fabf@...net.be>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        linux-ext4@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: ext4: remove another test in ext4_alloc_file_blocks()

On Wed 12-10-16 09:00:02, Dan Carpenter wrote:
> Before commit c3fe493ccdb1 ('ext4: remove unneeded test in
> ext4_alloc_file_blocks()') then it was possible for "depth" to be -1
> but now, it's not possible that it is negative.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

Looks good. You can add:

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

								Honza

> 
> diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
> index c930a01..dca394c 100644
> --- a/fs/ext4/extents.c
> +++ b/fs/ext4/extents.c
> @@ -4701,7 +4701,7 @@ static int ext4_alloc_file_blocks(struct file *file, ext4_lblk_t offset,
>  		/*
>  		 * Recalculate credits when extent tree depth changes.
>  		 */
> -		if (depth >= 0 && depth != ext_depth(inode)) {
> +		if (depth != ext_depth(inode)) {
>  			credits = ext4_chunk_trans_blocks(inode, len);
>  			depth = ext_depth(inode);
>  		}
> --
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-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR
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