linux-kernel - Re: [PATCH] btrfs: use kmem cache to allocate struct btrfs_qgroup_extent

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Date:   Mon, 4 Oct 2021 13:51:11 +0200
From:   David Sterba <dsterba@...e.cz>
To:     Hamza Mahfooz <someguy@...ective-light.com>
Cc:     linux-kernel@...r.kernel.org, Chris Mason <clm@...com>,
        Josef Bacik <josef@...icpanda.com>,
        David Sterba <dsterba@...e.com>, linux-btrfs@...r.kernel.org
Subject: Re: [PATCH] btrfs: use kmem cache to allocate struct
 btrfs_qgroup_extent_record

On Mon, Oct 04, 2021 at 06:55:32AM -0400, Hamza Mahfooz wrote:
> Commit 3368d001ba5d ("btrfs: qgroup: Record possible quota-related extent
> for qgroup.") suggests that,

The commit is from 2015 and besides the TODO notice there's nothing that
explains why it should be kmem cache and not plain kmalloc/kfree.

So, why you'd like to do the change?