linux-kernel - Re: [PATCH] psi: dont alloc memory for psi by default

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Message-ID: <Yo+mXVefsRSxjTMY@cmpxchg.org>
Date:   Thu, 26 May 2022 12:10:05 -0400
From:   Johannes Weiner <hannes@...xchg.org>
To:     Chen Wandun <chenwandun@...wei.com>
Cc:     tj@...nel.org, lizefan.x@...edance.com, surenb@...gle.com,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] psi: dont alloc memory for psi by default

On Thu, May 26, 2022 at 08:26:56PM +0800, Chen Wandun wrote:
> Memory about struct psi_group is allocated by default for
> each cgroup even if psi_disabled is true, in this case, these
> allocated memory is waste, so alloc memory for struct psi_group
> only when psi_disabled is false.
> 
> Signed-off-by: Chen Wandun <chenwandun@...wei.com>

Looks good to me,
Acked-by: Johannes Weiner <hannes@...xchg.org>

Tejun, would you mind taking this through the cgroup tree?