From: Kevin Wolf <kwolf@redhat.com>
To: qemu-devel@nongnu.org
Cc: kwolf@redhat.com, stefanha@gmail.com, hch@lst.de
Subject: [Qemu-devel] [RFC][PATCH 0/2] block: Add flush after metadata writes
Date: Thu, 17 Jun 2010 14:03:29 +0200 [thread overview]
Message-ID: <1276776211-11174-1-git-send-email-kwolf@redhat.com> (raw)
This addresses the data integrity problems described at
http://wiki.qemu.org/Features/Qcow2DataIntegrity#Metadata_update_ordering.2C_Part_2
These problems are the same for all image formats (except raw, which doesn't
have any metadata), so I'm going to add more patches for the other formats for
the real patch submission.
Kevin Wolf (2):
block: Add bdrv_(p)write_sync
qcow2: Use bdrv_(p)write_sync for metadata writes
block.c | 37 +++++++++++++++++++++++++++++++++++++
block.h | 4 ++++
block/qcow2-cluster.c | 16 ++++++++--------
block/qcow2-refcount.c | 18 +++++++++---------
block/qcow2-snapshot.c | 14 +++++++-------
block/qcow2.c | 10 +++++-----
6 files changed, 70 insertions(+), 29 deletions(-)
next reply other threads:[~2010-06-17 12:03 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-17 12:03 Kevin Wolf [this message]
2010-06-17 12:03 ` [Qemu-devel] [RFC][PATCH 1/2] block: Add bdrv_(p)write_sync Kevin Wolf
2010-06-17 12:03 ` [Qemu-devel] [RFC][PATCH 2/2] qcow2: Use bdrv_(p)write_sync for metadata writes Kevin Wolf
2010-06-17 14:19 ` [Qemu-devel] " Stefan Hajnoczi
2010-06-17 14:39 ` Kevin Wolf
2010-06-17 19:47 ` Stefan Hajnoczi
2010-06-18 7:54 ` Kevin Wolf
2010-06-18 7:58 ` 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=1276776211-11174-1-git-send-email-kwolf@redhat.com \
--to=kwolf@redhat.com \
--cc=hch@lst.de \
--cc=qemu-devel@nongnu.org \
--cc=stefanha@gmail.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).