linux-kernel - Re: [PATCH] jffs2: implement mount option to configure endianness

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Message-ID: <20181107173303.slnb3i2d6ufaonp7@zorba>
Date:   Wed, 7 Nov 2018 09:33:03 -0800
From:   Daniel Walker <danielwa@...co.com>
To:     David Woodhouse <dwmw2@...radead.org>
Cc:     Joakim Tjernlund <Joakim.Tjernlund@...inera.com>,
        "nkela@...co.com" <nkela@...co.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "xe-linux-external@...co.com" <xe-linux-external@...co.com>
Subject: Re: [PATCH] jffs2: implement mount option to configure endianness

On Wed, Nov 07, 2018 at 04:12:14PM -0000, David Woodhouse wrote:
> 
> > Yes, this may slow things down. I am not sure I agree with the impl.
> > either.
> > Could one not make cpu_to_je_X/jeX_to_cpu a function ptr which is set to
> > a func. with the correct endian?
> 
> On x86 retpoline would make that quite slow.

Is x86 the largest consumer of jffs2 ?

Daniel