qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: Kevin Wolf <kwolf@redhat.com>
To: qemu-block@nongnu.org
Cc: pkrempa@redhat.com, qemu-devel@nongnu.org, mreitz@redhat.com
Subject: Re: [PATCH v2 0/7] block: Relax restrictions for blockdev-snapshot
Date: Tue, 10 Mar 2020 18:43:21 +0100	[thread overview]
Message-ID: <20200310174321.GI6926@linux.fritz.box> (raw)
In-Reply-To: <20200310113831.27293-1-kwolf@redhat.com>

Am 10.03.2020 um 12:38 hat Kevin Wolf geschrieben:
> This series allows libvirt to fix a regression that its switch from
> drive-mirror to blockdev-mirror caused: It currently requires that the
> backing chain of the target image is already available when the mirror
> operation is started.
> 
> In reality, the backing chain may only be copied while the operation is
> in progress, so the backing file of the target image needs to stay
> disabled until the operation completes and should be attached only at
> that point. Without this series, we don't have a supported API to attach
> the backing file at that later point.
> 
> v2:
> - Added a fix and test case for iothreads [Peter]
> - Added a blockdev-snapshot feature flag to indicate that it's usable
>   for attaching a backing chain to an overlay that is already in
>   write-only use (e.g. as a mirror target) [Peter]

Thanks for review and testing, applied to the block branch.

Kevin



      parent reply	other threads:[~2020-03-10 17:44 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-10 11:38 [PATCH v2 0/7] block: Relax restrictions for blockdev-snapshot Kevin Wolf
2020-03-10 11:38 ` [PATCH v2 1/7] block: Make bdrv_get_cumulative_perm() public Kevin Wolf
2020-03-10 13:10   ` Peter Krempa
2020-03-10 11:38 ` [PATCH v2 2/7] block: Relax restrictions for blockdev-snapshot Kevin Wolf
2020-03-10 13:15   ` Peter Krempa
2020-03-10 13:27     ` Kevin Wolf
2020-03-10 11:38 ` [PATCH v2 3/7] iotests: Fix run_job() with use_log=False Kevin Wolf
2020-03-10 13:16   ` Peter Krempa
2020-03-10 11:38 ` [PATCH v2 4/7] iotests: Test mirror with temporarily disabled target backing file Kevin Wolf
2020-03-10 13:25   ` Peter Krempa
2020-03-10 11:38 ` [PATCH v2 5/7] block: Fix cross-AioContext blockdev-snapshot Kevin Wolf
2020-03-10 13:27   ` Peter Krempa
2020-03-10 11:38 ` [PATCH v2 6/7] iotests: Add iothread cases to 155 Kevin Wolf
2020-03-10 13:28   ` Peter Krempa
2020-03-10 11:38 ` [PATCH v2 7/7] qapi: Add '@allow-write-only-overlay' feature for 'blockdev-snapshot' Kevin Wolf
2020-03-10 17:43 ` Kevin Wolf [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=20200310174321.GI6926@linux.fritz.box \
    --to=kwolf@redhat.com \
    --cc=mreitz@redhat.com \
    --cc=pkrempa@redhat.com \
    --cc=qemu-block@nongnu.org \
    --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).