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From:   "NeilBrown" <neilb@suse.de>
To:     "Christoph Hellwig" <hch@infradead.org>
Cc:     "Trond Myklebust" <trond.myklebust@hammerspace.com>,
        "Anna Schumaker" <anna.schumaker@netapp.com>,
        "Chuck Lever" <chuck.lever@oracle.com>,
        "Andrew Morton" <akpm@linux-foundation.org>,
        "Mel Gorman" <mgorman@suse.de>, linux-nfs@vger.kernel.org,
        linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 02/13] NFS: do not take i_rwsem for swap IO
In-reply-to: <YZNjLtYKnQ/RFpxR@infradead.org>
References: <163702956672.25805.16457749992977493579.stgit@noble.brown>,
 <163703064452.25805.5738767545414940042.stgit@noble.brown>,
 <YZNjLtYKnQ/RFpxR@infradead.org>
Date:   Wed, 17 Nov 2021 08:50:12 +1100
Message-id: <163709941227.13692.8504638930849686895@noble.neil.brown.name>
Precedence: bulk

On Tue, 16 Nov 2021, Christoph Hellwig wrote:
> I'd really much prefer the variant we discussed before where
> swap I/O uses it's own method instead of overloading the normal
> file I/O path all over.
> 
> 
This would be David Howells' "mm: Use DIO for swap and fix NFS
swapfiles" series?  I'd be very happy to work with that once it lands.
I might try it out and see how two work together.

Thanks,
NeilBrown