netdev - Re: [net-next,v2] tcp: Use per-vma locking for receive zerocopy

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Message-ID: <ZKcZZPB7jaDlasdR@casper.infradead.org>
Date: Thu, 6 Jul 2023 20:43:32 +0100
From: Matthew Wilcox <willy@...radead.org>
To: Arjun Roy <arjunroy.kdev@...il.com>
Cc: netdev@...r.kernel.org, arjunroy@...gle.com, edumazet@...gle.com,
	soheil@...gle.com, kuba@...nel.org, akpm@...ux-foundation.org,
	dsahern@...nel.org, davem@...emloft.net, linux-mm@...ck.org,
	pabeni@...hat.com
Subject: Re: [net-next,v2] tcp: Use per-vma locking for receive zerocopy

On Fri, Jun 16, 2023 at 12:34:27PM -0700, Arjun Roy wrote:
> However, with per-vma locking, both of these problems can be avoided.

I appreciate your enthusiasm for this.  However, applying this patch
completely wrecks my patch series to push per-vma locking down for
file-backed mappings.  It would be helpful if we can back this out
for now and then apply it after that patch series.

Would it make life hard for this patch to go through the mm tree?