From: Christoph Hellwig <hch@lst.de>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: aliguori@us.ibm.com, qemu-stable@nongnu.org,
Anthony Liguori <anthony@codemonkey.ws>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PULL 0/2] xen_disk: use NATIVE_AIO and NOCACHE
Date: Tue, 27 Mar 2012 18:11:23 +0200 [thread overview]
Message-ID: <20120327161123.GA32116@lst.de> (raw)
In-Reply-To: <alpine.DEB.2.00.1203271645570.15151@kaball-desktop>
On Tue, Mar 27, 2012 at 04:48:19PM +0100, Stefano Stabellini wrote:
> Anthony,
> please pull this small patch series that allows xen_disk to be used
> correctly with NATIVE_AIO and O_DIRECT.
>
> This series should be backported to the stable branch too.
Any plans to add BLKIF_OP_FLUSH_DISKCACHE support to xen_disk? Unlike
the old bnroken Xen barrier scheme this actually implements pure flushes
for fdatasync or blockdevice O_SYNC I/O corectly, and for modern Linux
kernels it actually will be quite a bit faster, too.
next prev parent reply other threads:[~2012-03-27 16:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-27 15:48 [Qemu-devel] [PULL 0/2] xen_disk: use NATIVE_AIO and NOCACHE Stefano Stabellini
2012-03-27 15:50 ` [Qemu-devel] [PATCH 1/2] xen_disk: open disk with BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_NATIVE_AIO Stefano Stabellini
2012-03-27 15:50 ` [Qemu-devel] [PATCH 2/2] xen_disk: when using AIO flush after the operation is completed Stefano Stabellini
2012-03-27 16:11 ` Christoph Hellwig [this message]
2012-03-27 16:20 ` [Qemu-devel] [PULL 0/2] xen_disk: use NATIVE_AIO and NOCACHE Stefano Stabellini
2012-03-30 13:12 ` Anthony Liguori
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=20120327161123.GA32116@lst.de \
--to=hch@lst.de \
--cc=aliguori@us.ibm.com \
--cc=anthony@codemonkey.ws \
--cc=qemu-devel@nongnu.org \
--cc=qemu-stable@nongnu.org \
--cc=stefano.stabellini@eu.citrix.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).