From: Ingo Molnar <mingo@elte.hu>
To: Christoph Hellwig <hch@infradead.org>
Cc: Pekka Enberg <penberg@kernel.org>,
Anthony Liguori <anthony@codemonkey.ws>,
Alexander Graf <agraf@suse.de>,
Prasad Joshi <prasadjoshi124@gmail.com>,
Avi Kivity <avi@redhat.com>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Sasha Levin <levinsasha928@gmail.com>,
Cyrill Gorcunov <gorcunov@gmail.com>,
Asias He <asias.hejun@gmail.com>,
Jens Axboe <jaxboe@fusionio.com>
Subject: Re: [ANNOUNCE] Native Linux KVM tool v2
Date: Thu, 16 Jun 2011 13:22:30 +0200 [thread overview]
Message-ID: <20110616112230.GD26110@elte.hu> (raw)
In-Reply-To: <20110616100239.GA29262@infradead.org>
* Christoph Hellwig <hch@infradead.org> wrote:
> On Thu, Jun 16, 2011 at 12:57:36PM +0300, Pekka Enberg wrote:
> > Uh-oh. Someone needs to apply this patch to sync_file_range():
>
> There actually are a few cases where using it makes sense. [...]
Such as? I don't think apps can actually know whether disk blocks
have been 'instantiated' by a particular filesystem or not, so the
manpage:
Some details
None of these operations write out the file’s metadata. Therefore, unless the appli-
cation is strictly performing overwrites of already-instantiated disk blocks, there
are no guarantees that the data will be available after a crash.
is rather misleading. This is a dangerous (and rather pointless)
syscall and this should be made much clearer in the manpage.
Thanks,
Ingo
next prev parent reply other threads:[~2011-06-16 11:22 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-15 15:53 [ANNOUNCE] Native Linux KVM tool v2 Pekka Enberg
2011-06-15 16:30 ` Avi Kivity
2011-06-15 17:10 ` Pekka Enberg
2011-06-15 20:13 ` Prasad Joshi
2011-06-15 20:23 ` Sasha Levin
2011-06-15 20:49 ` Prasad Joshi
2011-06-15 21:53 ` Anthony Liguori
2011-06-15 22:04 ` Anthony Liguori
2011-06-15 22:07 ` Alexander Graf
2011-06-15 22:20 ` Anthony Liguori
2011-06-15 22:44 ` Anthony Liguori
2011-06-16 5:41 ` Pekka Enberg
2011-06-16 6:21 ` Pekka Enberg
2011-06-16 9:24 ` Christoph Hellwig
2011-06-16 9:34 ` Pekka Enberg
2011-06-16 9:48 ` Christoph Hellwig
2011-06-16 9:57 ` Ingo Molnar
2011-06-16 9:57 ` Pekka Enberg
2011-06-16 10:02 ` Christoph Hellwig
2011-06-16 11:22 ` Ingo Molnar [this message]
2011-06-16 11:25 ` Christoph Hellwig
2011-06-16 11:40 ` Ingo Molnar
2011-06-16 11:51 ` Christoph Hellwig
2011-06-17 7:21 ` Jeff Garzik
2011-06-16 5:45 ` Pekka Enberg
2011-06-16 7:24 ` Ingo Molnar
2011-06-16 7:33 ` Pekka Enberg
2011-06-16 8:07 ` Ingo Molnar
2011-06-16 9:09 ` Stefan Hajnoczi
2011-06-16 5:29 ` Stefan Hajnoczi
2011-06-16 5:42 ` Pekka Enberg
2011-06-15 21:41 ` Anthony Liguori
2011-06-16 14:28 ` Michael S. Tsirkin
2011-06-16 15:01 ` Asias He
2011-06-19 8:15 ` Michael S. Tsirkin
2011-06-16 14:48 ` Pekka Enberg
2011-06-16 22:50 ` Anthony Liguori
2011-06-17 1:03 ` Sasha Levin
2011-06-17 5:00 ` Stefan Hajnoczi
2011-06-17 13:41 ` Sasha Levin
2011-06-17 13:45 ` Anthony Liguori
2011-06-17 5:11 ` Stefan Hajnoczi
2011-06-17 7:31 ` justin
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=20110616112230.GD26110@elte.hu \
--to=mingo@elte.hu \
--cc=agraf@suse.de \
--cc=akpm@linux-foundation.org \
--cc=anthony@codemonkey.ws \
--cc=asias.hejun@gmail.com \
--cc=avi@redhat.com \
--cc=gorcunov@gmail.com \
--cc=hch@infradead.org \
--cc=jaxboe@fusionio.com \
--cc=kvm@vger.kernel.org \
--cc=levinsasha928@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=penberg@kernel.org \
--cc=prasadjoshi124@gmail.com \
--cc=torvalds@linux-foundation.org \
/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).