linux-kernel - Re: [PATCH 0/4] zstd: reduce stack usage

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Message-Id: <20190603144912.34e1414376e07c7b1af53205@linux-foundation.org>
Date:   Mon, 3 Jun 2019 14:49:12 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Maninder Singh <maninder1.s@...sung.com>
Cc:     herbert@...dor.apana.org.au, davem@...emloft.net,
        keescook@...omium.org, gustavo@...eddedor.com, joe@...ches.com,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        a.sahrawat@...sung.com, pankaj.m@...sung.com, v.narang@...sung.com
Subject: Re: [PATCH 0/4] zstd: reduce stack usage

On Mon,  3 Jun 2019 14:32:02 +0530 Maninder Singh <maninder1.s@...sung.com> wrote:

> This patch set reduces stack usage for zstd code, because target like ARM has
> limited 8KB kernel stack, which is getting overflowed due to hight stack usage
> of zstd code with call flow like:

That's rather bad behaviour.  I assume the patchset actually fixes this?

I think I'll schedule the patchset for 5.2-rcX so that zstd is actually
usable on arm in 5.2.  Does that sound OK?