From: Trond Myklebust <trondmy@primarydata.com>
To: "neilb@suse.com" <neilb@suse.com>,
"linux-nfs@vger.kernel.org" <linux-nfs@vger.kernel.org>
Subject: Re: A NFS mount can still write to the server after 'umount' has completed.
Date: Thu, 9 Mar 2017 13:21:48 +0000 [thread overview]
Message-ID: <1489065706.3121.1.camel@primarydata.com> (raw)
In-Reply-To: <87y3wfgipy.fsf@notabene.neil.brown.name>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next prev parent reply other threads:[~2017-03-09 13:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-09 3:36 A NFS mount can still write to the server after 'umount' has completed NeilBrown
2017-03-09 4:46 ` NeilBrown
2017-03-09 13:21 ` Trond Myklebust [this message]
2017-03-09 21:38 ` NeilBrown
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1489065706.3121.1.camel@primarydata.com \
--to=trondmy@primarydata.com \
--cc=linux-nfs@vger.kernel.org \
--cc=neilb@suse.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).