netdev - Re: [PATCH] net: unix socket code abuses csum

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Message-ID: <1393970109.26794.129.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 04 Mar 2014 13:55:09 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	anton@...ba.org, edumazet@...gle.com, gustavold@...ux.vnet.ibm.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH] net: unix socket code abuses csum_partial

On Tue, 2014-03-04 at 16:23 -0500, David Miller wrote:
> From: Eric Dumazet <eric.dumazet@...il.com>

> > Or simply use full_name_hash()
> 
> I would prefer not, because this would be a performance regression
> on platforms other than x86 and ARM, because only they implement
> the optimized load_unaligned_zeropad().
> 
> Other architectures would end up with a byte-by-byte hash computation.

Oh right, I missed this was fast only on x86 and ARM.

Sound like a project for arches maintainers then ;)


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