linux-ext4 - Re: [PATCH 3/8] ext4: fix wrong unit use in ext4_mb_new_inode

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Message-ID: <ZC3LXYKjp5zwYfO1@li-bb2b2a4c-3307-11b2-a85c-8fa5c3a69313.ibm.com>
Date:   Thu, 6 Apr 2023 00:56:21 +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 3/8] ext4: fix wrong unit use in ext4_mb_new_inode_pa

On Wed, Mar 22, 2023 at 12:12:15AM +0800, Kemeng Shi wrote:
> fe_logical and win are both in block unit. Remove wrong convertion for
> win from block unit to cluster unit.
> 
> Signed-off-by: Kemeng Shi <shikemeng@...weicloud.com>
> ---
>  fs/ext4/mballoc.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
> index 7f695830621a..86d978e1f7dc 100644
> --- a/fs/ext4/mballoc.c
> +++ b/fs/ext4/mballoc.c
> @@ -4640,8 +4640,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
>  		if (offs && offs < win)
>  			win = offs;
>  
> -		ac->ac_b_ex.fe_logical = ac->ac_o_ex.fe_logical -
> -			EXT4_NUM_B2C(sbi, win);
> +		ac->ac_b_ex.fe_logical = ac->ac_o_ex.fe_logical - win;
>  		BUG_ON(ac->ac_o_ex.fe_logical < ac->ac_b_ex.fe_logical);
>  		BUG_ON(ac->ac_o_ex.fe_len > ac->ac_b_ex.fe_len);

So this bit of code is removed in the patchset I sent here [1]. My patchset
is mostly ready to be merged and Ted did mention that he was going to
pick that up soon. So would it be okay with you if we drop this particular patch?

[1]
https://lore.kernel.org/linux-ext4/9b35f3955a1d7b66bbd713eca1e63026e01f78c1.1679731817.git.ojaswin@linux.ibm.com
>  	}
> -- 
> 2.30.0
>