From: "Andreas Färber" <afaerber@suse.de>
To: Paolo Bonzini <pbonzini@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
qemu-devel@nongnu.org
Cc: Peter Maydell <peter.maydell@linaro.org>,
Anthony Liguori <aliguori@amazon.com>
Subject: Re: [Qemu-devel] [PATCH 0/4] qom: link property fixes
Date: Wed, 05 Mar 2014 10:24:41 +0100 [thread overview]
Message-ID: <5316ED59.8010400@suse.de> (raw)
In-Reply-To: <5316DCD3.3000306@redhat.com>
Am 05.03.2014 09:14, schrieb Paolo Bonzini:
> Il 04/03/2014 22:45, Stefan Hajnoczi ha scritto:
>> There are two problems with QOM link properties:
>>
>> 1. There are refcount leaks in many object_property_add_link() callers.
>> 2. There is no way to prevent link properties from being set after a
>> device is
>> realized.
>>
>> This patch series fixes these issues by extending the
>> object_property_add_link() function.
>
> Thanks for looking into this! Just two (mostly) cosmetic comments:
>
> 1) in patch 2 we could use a flags argument instead of a "bool". This
> is more easily extensible and self-documenting.
I wonder if we can do this more cleverly: The two ways a link<> property
can get set that I can think of are either a) assigning the field a new
value in C code or b) using object_property_set_link() with a textual
path. Can't the latter simply save an unref flag within the property's
opaque when used?
Andreas
--
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
next prev parent reply other threads:[~2014-03-05 9:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-04 21:45 [Qemu-devel] [PATCH 0/4] qom: link property fixes Stefan Hajnoczi
2014-03-04 21:45 ` [Qemu-devel] [PATCH 1/4] qom: split object_property_set_link() Stefan Hajnoczi
2014-03-05 9:26 ` Andreas Färber
2014-03-04 21:45 ` [Qemu-devel] [PATCH 2/4] qom: make QOM link property unref optional Stefan Hajnoczi
2014-03-04 21:45 ` [Qemu-devel] [PATCH 3/4] qom: add set() argument to object_property_add_link() Stefan Hajnoczi
2014-03-04 21:45 ` [Qemu-devel] [PATCH 4/4] virtio-rng: avoid default_backend refcount leak Stefan Hajnoczi
2014-03-05 8:14 ` [Qemu-devel] [PATCH 0/4] qom: link property fixes Paolo Bonzini
2014-03-05 9:24 ` Andreas Färber [this message]
2014-03-05 9:31 ` Paolo Bonzini
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