linux-kernel - Re: [PATCH net 0/3] Fix for BPF devmap percpu allocation splat

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Message-ID: <20171021160025.GM1302522@devbig577.frc2.facebook.com>
Date:   Sat, 21 Oct 2017 09:00:25 -0700
From:   Tejun Heo <tj@...nel.org>
To:     Dennis Zhou <dennisszhou@...il.com>
Cc:     Daniel Borkmann <daniel@...earbox.net>, davem@...emloft.net,
        ast@...nel.org, john.fastabend@...il.com, mark.rutland@....com,
        richard@....at, sp3485@...umbia.edu, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net 0/3] Fix for BPF devmap percpu allocation splat

Hello,

On Wed, Oct 18, 2017 at 04:45:08PM -0500, Dennis Zhou wrote:
> I'm not sure I see the reason we can't match the minimum allocation size
> with the unit size? It seems weird to arbitrate the maximum allocation
> size given a lower bound on the unit size.

idk, it can be weird for the maximum allowed allocation size varying
widely depending on how the machine boots up.

Thanks.

-- 
tejun