[libvirt] [PATCH] nwfilter: Add missing driver lock in qemu driver
Daniel P. Berrange
berrange at redhat.com
Sun May 16 09:08:38 UTC 2010
On Fri, May 14, 2010 at 01:39:28PM -0400, Stefan Berger wrote:
> This adds a missing driver lock in the qemu driver to protect
> the list of domains.
>
> Signed-off-by: Stefan Berger <stefanb at us.ibm.com>
>
> ---
> src/qemu/qemu_driver.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> Index: libvirt-acl/src/qemu/qemu_driver.c
> ===================================================================
> --- libvirt-acl.orig/src/qemu/qemu_driver.c
> +++ libvirt-acl/src/qemu/qemu_driver.c
> @@ -11869,11 +11869,15 @@ static virStateDriver qemuStateDriver =
> };
>
> static int
> -qemudVMFilterRebuild(virConnectPtr conn,
> +qemudVMFilterRebuild(virConnectPtr conn ATTRIBUTE_UNUSED,
> virHashIterator iter, void *data)
> {
> - (void)conn;
> + struct qemud_driver *driver = qemu_driver;
> +
> + qemuDriverLock(driver);
> virHashForEach(qemu_driver->domains.objs, iter, data);
> + qemuDriverUnlock(driver);
> +
> return 0;
> }
ACK, traced back the code for 'iter' and that's already correctly locking
the elements when it accesses them, so this is only bit broken.
Daniel
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