From: Blue Swirl <blauwirbel@gmail.com>
To: Christoph Hellwig <hch@lst.de>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 2/4] block: use fdatasync instead of fsync
Date: Tue, 1 Sep 2009 18:59:46 +0300 [thread overview]
Message-ID: <f43fc5580909010859n138c4b06jfdd9a4a6277b7f92@mail.gmail.com> (raw)
In-Reply-To: <20090831201709.GB4874@lst.de>
On Mon, Aug 31, 2009 at 11:17 PM, Christoph Hellwig<hch@lst.de> wrote:
>
> If we are flushing the caches for our image files we only care about the
> data (including the metadata required for accessing it) but not things
> like timestamp updates. So use fdatasync instead of fsync to implement
> the flush operations.
> - fsync(s->fd);
> + fdatasync(s->fd);
There is no fdatasync outside of Linux, not in OpenBSD and mingw32 at
least. But you could add a probe for it to configure.
next prev parent reply other threads:[~2009-09-01 16:14 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-31 20:16 [Qemu-devel] [PATCH 0/4] data integrity fixes Christoph Hellwig
2009-08-31 20:16 ` [Qemu-devel] [PATCH 1/4] block: add enable_write_cache flag Christoph Hellwig
2009-08-31 22:09 ` Jamie Lokier
2009-08-31 22:16 ` Christoph Hellwig
2009-08-31 22:46 ` Jamie Lokier
2009-08-31 23:06 ` Christoph Hellwig
2009-09-01 10:38 ` Jamie Lokier
2009-08-31 22:53 ` Anthony Liguori
2009-08-31 22:55 ` Jamie Lokier
2009-08-31 22:58 ` Christoph Hellwig
2009-08-31 22:59 ` Jamie Lokier
2009-08-31 23:06 ` Christoph Hellwig
2009-08-31 23:09 ` Christoph Hellwig
2009-09-02 3:53 ` Christoph Hellwig
2009-09-02 13:13 ` Anthony Liguori
2009-09-02 14:14 ` Christoph Hellwig
2009-09-02 19:49 ` Christoph Hellwig
2009-08-31 20:17 ` [Qemu-devel] [PATCH 2/4] block: use fdatasync instead of fsync Christoph Hellwig
2009-08-31 21:51 ` Jamie Lokier
2009-08-31 21:55 ` Christoph Hellwig
2009-08-31 22:48 ` Jamie Lokier
2009-08-31 22:57 ` Christoph Hellwig
2009-09-01 15:59 ` Blue Swirl [this message]
2009-09-01 16:04 ` Christoph Hellwig
2009-09-02 0:34 ` Jamie Lokier
2009-09-02 0:37 ` Christoph Hellwig
2009-09-02 1:18 ` Jamie Lokier
2009-09-02 14:02 ` Blue Swirl
2009-09-02 14:15 ` Christoph Hellwig
2009-08-31 20:17 ` [Qemu-devel] [PATCH 3/4] block: add bdrv_aio_flush operation Christoph Hellwig
2009-09-01 10:24 ` Avi Kivity
2009-09-01 14:25 ` Christoph Hellwig
2009-08-31 20:18 ` [Qemu-devel] [PATCH 4/4] virtio-blk: add volatile writecache feature Christoph Hellwig
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=f43fc5580909010859n138c4b06jfdd9a4a6277b7f92@mail.gmail.com \
--to=blauwirbel@gmail.com \
--cc=hch@lst.de \
--cc=qemu-devel@nongnu.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).