linux-kernel - Re: [PATCH v3 4/4] io_uring: add support for zone-append

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Message-ID: <20200708163327.GU25523@casper.infradead.org>
Date:   Wed, 8 Jul 2020 17:33:27 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Javier González <javier@...igon.com>
Cc:     Jens Axboe <axboe@...nel.dk>, Kanchan Joshi <joshi.k@...sung.com>,
        viro@...iv.linux.org.uk, bcrl@...ck.org, hch@...radead.org,
        damien.lemoal@....com, asml.silence@...il.com,
        linux-fsdevel@...r.kernel.org, mb@...htnvm.io,
        linux-kernel@...r.kernel.org, linux-aio@...ck.org,
        io-uring@...r.kernel.org, linux-block@...r.kernel.org,
        Selvakumar S <selvakuma.s1@...sung.com>,
        Nitesh Shetty <nj.shetty@...sung.com>,
        Javier Gonzalez <javier.gonz@...sung.com>
Subject: Re: [PATCH v3 4/4] io_uring: add support for zone-append

On Wed, Jul 08, 2020 at 06:08:12PM +0200, Javier González wrote:
> > I just wanted to get clarification there, because to me it sounded like
> > you expected Kanchan to do it, and Kanchan assuming it "was sorted". I'd
> > consider that a prerequisite for the append series as far as io_uring is
> > concerned, hence _someone_ needs to actually do it ;-)

I don't know that it's a prerequisite in terms of the patches actually
depend on it.  I appreciate you want it first to ensure that we don't bloat
the kiocb.

> I believe Kanchan meant that now the trade-off we were asking to clear out is sorted. 
> 
> We will send a new version shortly for the current functionality - we can see what we are missing on when the uring interface is clear. 

I've started work on a patch series for this.  Mostly just waiting for
compilation now ... should be done in the next few hours.