netdev - Re: [PATCH v3 net-next 01/21] iov_iter: Introduce new procedures for copy to iter/pages

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Date:   Sun, 7 Feb 2021 16:13:03 +0200
From:   Boris Pismenny <borispismenny@...il.com>
To:     Ira Weiny <ira.weiny@...el.com>, Christoph Hellwig <hch@....de>
Cc:     Or Gerlitz <gerlitz.or@...il.com>,
        Boris Pismenny <borisp@...lanox.com>, smalin@...vell.com,
        Sagi Grimberg <sagi@...mberg.me>, yorayz@...dia.com,
        boris.pismenny@...il.com, Ben Ben-Ishay <benishay@...lanox.com>,
        Yoray Zack <yorayz@...lanox.com>,
        linux-nvme@...ts.infradead.org, David Miller <davem@...emloft.net>,
        axboe@...com, Eric Dumazet <edumazet@...gle.com>,
        Linux Netdev List <netdev@...r.kernel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        David Ahern <dsahern@...il.com>,
        Keith Busch <kbusch@...nel.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Or Gerlitz <ogerlitz@...lanox.com>, benishay@...dia.com,
        Saeed Mahameed <saeedm@...dia.com>,
        Or Gerlitz <ogerlitz@...dia.com>
Subject: Re: [PATCH v3 net-next 01/21] iov_iter: Introduce new procedures for
 copy to iter/pages

On 03/02/2021 21:34, Ira Weiny wrote:
> On Wed, Feb 03, 2021 at 05:56:21PM +0100, Christoph Hellwig wrote:
>> On Tue, Feb 02, 2021 at 08:00:51PM +0200, Or Gerlitz wrote:
>>> will look into this, any idea for a more suitable location?
>>
>> Maybe just a new file under lib/ for now?
>>
>>>> Overly long line.  But we're also looking into generic helpers for
>>>> this kind of things, not sure if they made it to linux-next in the
>>>> meantime, but please check.
>>>
>>> This is what I found in linux-next - note sure if you were referring to it
>>>
>>> commit 11432a3cc061c39475295be533c3674c4f8a6d0b
>>> Author: David Howells <dhowells@...hat.com>
>>>
>>>     iov_iter: Add ITER_XARRAY
>>
>> No, that's not it.  Ira, what is the status of the memcpy_{to,from}_page
>> helpers?
> 
> Converting the entire kernel tree in one series has become unwieldy so I've
> given up.
> 
> But I have a series to convert btrfs which I could release by the end of the
> week.  That should be good enough to push the memcpy_*_page() support in.
> 
> I'm get it formatted and submitted,
> Ira
> 

To conclude this discussion, there's nothing that we need to change here
as the relevant series is still WIP, right?