linux-kernel - Re: [PATCH v3 11/19] ext4: fix wrong unit use in ext4_mb_new

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Message-ID: <ZF3fJmzhUe2btLrf@li-bb2b2a4c-3307-11b2-a85c-8fa5c3a69313.ibm.com>
Date:   Fri, 12 May 2023 12:09:34 +0530
From:   Ojaswin Mujoo <ojaswin@...ux.ibm.com>
To:     Kemeng Shi <shikemeng@...weicloud.com>
Cc:     tytso@....edu, adilger.kernel@...ger.ca,
        linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 11/19] ext4: fix wrong unit use in ext4_mb_new_blocks

On Mon, Apr 17, 2023 at 07:06:09PM +0800, Kemeng Shi wrote:
> Function ext4_mb_new_blocks_simple needs count in cluster. Function

So there seems to be a typo in the commit header and commit message. I believe
you mean ext4_mb_free_blocks() and ext4_mb_free_blocks_simple() ?

If that is the case, once corrected feel free to add:

Reviewed-by: Ojaswin Mujoo <ojaswin@...ux.ibm.com>

> ext4_mb_new_blocks accepts count in block. Convert count to cluster
> to fix the mismatch.
> 
> Signed-off-by: Kemeng Shi <shikemeng@...weicloud.com>
> ---
>  fs/ext4/mballoc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
> index 4a345e3c1c78..6d4471fd3049 100644
> --- a/fs/ext4/mballoc.c
> +++ b/fs/ext4/mballoc.c
> @@ -6315,7 +6315,7 @@ void ext4_free_blocks(handle_t *handle, struct inode *inode,
>  	}
>  
>  	if (sbi->s_mount_state & EXT4_FC_REPLAY) {
> -		ext4_free_blocks_simple(inode, block, count);
> +		ext4_free_blocks_simple(inode, block, EXT4_NUM_B2C(sbi, count));
>  		return;
>  	}
>  
> -- 
> 2.30.0
>