From: "J. Bruce Fields" <bfields@fieldses.org>
To: Hellwig Christoph <hch@infradead.org>
Cc: "Myklebust, Trond" <Trond.Myklebust@netapp.com>,
"Schumaker, Bryan" <Bryan.Schumaker@netapp.com>,
Mailing List Linux NFS <linux-nfs@vger.kernel.org>
Subject: Re: [PATCH 2/3] NFS: Allow for asynchronous WRITE_PLUS calls
Date: Tue, 29 Oct 2013 09:44:08 -0400 [thread overview]
Message-ID: <20131029134408.GH29606@fieldses.org> (raw)
In-Reply-To: <20131029132421.GA13880@infradead.org>
On Tue, Oct 29, 2013 at 06:24:21AM -0700, Hellwig Christoph wrote:
> On Tue, Oct 29, 2013 at 01:21:26PM +0000, Myklebust, Trond wrote:
> > The current draft spec even allows the client to specify a "pattern" to be written to the "hole".
>
> That's indeed the WRITE SAME lookalike then. At least the SCSI people
> were smart enough to define an unmap bit for "hole punching" and allow
> the target to reject all other versions if they don't want to support
> it.
>
> Given that NFS v4.2 isn't finalized I'd very much recommend to
>
> a) properly separate those case s
> b) do not make the async version mandatory
That sounds reasonable to me.
By the way, source is available from https://github.com/loghyr/NFSv4.2,
and Tom takes patches.....
(Or maybe Anna can be talked into that.)
--b.
next prev parent reply other threads:[~2013-10-29 13:44 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-28 15:00 [PATCH 0/3] NFS: Add support for fallocate and llseek Anna Schumaker
2013-10-28 15:00 ` [PATCH 1/3] NFS: Use WRITE_PLUS for hole punches Anna Schumaker
2013-10-29 7:39 ` Christoph Hellwig
2013-10-29 12:41 ` Anna Schumaker
2013-11-05 9:37 ` Christoph Hellwig
2013-10-28 15:00 ` [PATCH 2/3] NFS: Allow for asynchronous WRITE_PLUS calls Anna Schumaker
2013-10-29 7:39 ` Christoph Hellwig
2013-10-29 12:44 ` Myklebust, Trond
2013-10-29 12:48 ` Hellwig Christoph
2013-10-29 13:05 ` Myklebust, Trond
2013-10-29 13:08 ` Hellwig Christoph
2013-10-29 13:21 ` Myklebust, Trond
2013-10-29 13:24 ` Hellwig Christoph
2013-10-29 13:41 ` Myklebust, Trond
2013-10-29 13:44 ` J. Bruce Fields [this message]
2013-10-28 15:00 ` [PATCH 3/3] NFS: Implement SEEK Anna Schumaker
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