From: "Myklebust, Trond" <Trond.Myklebust@netapp.com>
To: Jeff Layton <jlayton@redhat.com>
Cc: "linux-nfs@vger.kernel.org" <linux-nfs@vger.kernel.org>,
William Dauchy <william@gandi.net>,
Pascal Bouchareine <pascal@gandi.net>
Subject: Re: [PATCH v3] NFS: Fix writeback performance issue on cache invalidation
Date: Thu, 8 Aug 2013 20:16:40 +0000 [thread overview]
Message-ID: <1375993000.2494.8.camel@leira.trondhjem.org> (raw)
In-Reply-To: <20130808144230.0efdfc2d@tlielax.poochiereds.net>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prev parent reply other threads:[~2013-08-08 20:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-07 21:14 [PATCH v3] NFS: Fix writeback performance issue on cache invalidation Trond Myklebust
2013-08-08 18:11 ` Jeff Layton
2013-08-08 18:21 ` Myklebust, Trond
2013-08-08 18:42 ` Jeff Layton
2013-08-08 20:16 ` Myklebust, Trond [this message]
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=1375993000.2494.8.camel@leira.trondhjem.org \
--to=trond.myklebust@netapp.com \
--cc=jlayton@redhat.com \
--cc=linux-nfs@vger.kernel.org \
--cc=pascal@gandi.net \
--cc=william@gandi.net \
/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).