From: George Dunlap <george.dunlap@eu.citrix.com>
To: Roger Pau Monne <roger.pau@citrix.com>,
xen-devel@lists.xenproject.org, qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: Re: [Qemu-devel] [PATCH v3 for-xen-4.5] xen_disk: fix unmapping of persistent grants
Date: Thu, 13 Nov 2014 19:21:30 +0000 [thread overview]
Message-ID: <546504BA.10506@eu.citrix.com> (raw)
In-Reply-To: <1415900529-10629-1-git-send-email-roger.pau@citrix.com>
On 11/13/2014 05:42 PM, Roger Pau Monne wrote:
> This patch fixes two issues with persistent grants and the disk PV backend
> (Qdisk):
>
> - Keep track of memory regions where persistent grants have been mapped
> since we need to unmap them as a whole. It is not possible to unmap a
> single grant if it has been batch-mapped. A new check has also been added
> to make sure persistent grants are only used if the whole mapped region
> can be persistently mapped in the batch_maps case.
> - Unmap persistent grants before switching to the closed state, so the
> frontend can also free them.
>
> Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
> Reported-by: George Dunlap <george.dunlap@eu.citrix.com>
Tested-by: George Dunlap <george.dunlap@eu.citrix.com>
next prev parent reply other threads:[~2014-11-13 19:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-13 17:42 [Qemu-devel] [PATCH v3 for-xen-4.5] xen_disk: fix unmapping of persistent grants Roger Pau Monne
2014-11-13 19:21 ` George Dunlap [this message]
2014-11-13 19:21 ` George Dunlap
2014-11-13 19:32 ` [Qemu-devel] " Konrad Rzeszutek Wilk
2014-11-13 19:32 ` Konrad Rzeszutek Wilk
2014-11-14 10:18 ` [Qemu-devel] " Stefano Stabellini
2014-11-14 10:18 ` Stefano Stabellini
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=546504BA.10506@eu.citrix.com \
--to=george.dunlap@eu.citrix.com \
--cc=konrad.wilk@oracle.com \
--cc=kwolf@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=roger.pau@citrix.com \
--cc=stefanha@redhat.com \
--cc=stefano.stabellini@eu.citrix.com \
--cc=xen-devel@lists.xenproject.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.