Re: [PATCH v2 1/2] conf: Rework virDomainObjListFindByUUID to allow more concurrent APIs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Dec 08, 2014 at 03:12:11PM +0000, Daniel P. Berrange wrote:
On Mon, Dec 08, 2014 at 04:07:39PM +0100, Peter Krempa wrote:
On 12/05/14 15:02, Martin Kletzander wrote:
> Currently, when there is an API that's blocking with locked domain and
> second API that's waiting in virDomainObjListFindByUUID() for the domain
> lock (with the domain list locked) no other API can be executed on any
> domain on the whole hypervisor because all would wait for the domain
> list to be locked.  This patch adds new optional approach to this in
> which the domain is only ref'd (reference counter is incremented)
> instead of being locked and is locked *after* the list itself is
> unlocked.  We might consider only ref'ing the domain in the future and
> leaving locking on particular APIs, but that's no tonight's fairy tale.
>
> Signed-off-by: Martin Kletzander <mkletzan@xxxxxxxxxx>
> ---
>  src/conf/domain_conf.c   | 27 ++++++++++++++++++++++++---
>  src/conf/domain_conf.h   |  2 ++
>  src/libvirt_private.syms |  1 +
>  3 files changed, 27 insertions(+), 3 deletions(-)
>

ACK, although given that the devel freeze is tomorrow and second patch
of this series is pretty invasive, I think that giving this change a
full dev cycle is a better way to go.

Agreed, particularly as this will be a longer dev cycle than usual
due to christmas - don't want to risk destablising this release.


Definitely, I wouldn't feel very safe this close to release :)  I'll
push it after 1.2.11 then.

Thank you for the review,

Attachment: signature.asc
Description: Digital signature

--
libvir-list mailing list
libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list

[Index of Archives]     [Virt Tools]     [Libvirt Users]     [Lib OS Info]     [Fedora Users]     [Fedora Desktop]     [Fedora SELinux]     [Big List of Linux Books]     [Yosemite News]     [KDE Users]     [Fedora Tools]