From mboxrd@z Thu Jan  1 00:00:00 1970
From: Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
Subject: Re: [PATCH] psi: dont alloc memory for psi by default
Date: Thu, 26 May 2022 12:10:05 -0400
Message-ID: <Yo+mXVefsRSxjTMY@cmpxchg.org>
References: <20220526122656.256274-1-chenwandun@huawei.com>
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To: Chen Wandun <chenwandun-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Cc: tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, lizefan.x-EC8Uxl6Npydl57MIdRCFDg@public.gmane.org, surenb-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

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-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>

Looks good to me,
Acked-by: Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>

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