linux-kernel - Re: [PATCH] btrfs: remove the useless value assignment in block_rsv_release

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Date:   Mon, 16 Nov 2020 16:15:12 +0100
From:   David Sterba <dsterba@...e.cz>
To:     xiakaixu1987@...il.com
Cc:     clm@...com, josef@...icpanda.com, dsterba@...e.com,
        linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org,
        Kaixu Xia <kaixuxia@...cent.com>
Subject: Re: [PATCH] btrfs: remove the useless value assignment in
 block_rsv_release_bytes

On Sun, Nov 15, 2020 at 02:39:23PM +0800, xiakaixu1987@...il.com wrote:
> From: Kaixu Xia <kaixuxia@...cent.com>
> 
> The variable qgroup_to_release is overwritten by the following if/else
> statement before it is used, so this assignment is useless. Remove it.

Again this lacks explanation why removing it is correct.