[libvirt] [PATCHv2 5/7] Introduce qemuDomainNamespaceUnlinkPaths
Michal Privoznik
mprivozn at redhat.com
Wed Dec 6 15:40:08 UTC 2017
On 12/01/2017 05:50 PM, Ján Tomko wrote:
> Split out the logic of unlinking devices from
> qemuDomainNamespaceTeardownHostdev for reuse in other functions.
> ---
> src/qemu/qemu_domain.c | 55 +++++++++++++++++++++++++++++++++++---------------
> 1 file changed, 39 insertions(+), 16 deletions(-)
>
> diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
> index 696f4751e..ddc93776b 100644
> --- a/src/qemu/qemu_domain.c
> +++ b/src/qemu/qemu_domain.c
> @@ -9973,6 +9973,43 @@ qemuDomainNamespaceMknodPath(virDomainObjPtr vm,
> }
>
>
> +static int
> +qemuDomainNamespaceUnlinkPaths(virDomainObjPtr vm,
> + const char **paths,
> + size_t npaths)
> +{
> + qemuDomainObjPrivatePtr priv = vm->privateData;
> + virQEMUDriverPtr driver = priv->driver;
> + virQEMUDriverConfigPtr cfg;
> + char **devMountsPath = NULL;
> + size_t ndevMountsPath = 0;
> + size_t i;
> + int ret = -1;
> +
> + if (!qemuDomainNamespaceEnabled(vm, QEMU_DOMAIN_NS_MOUNT))
> + return 0;
> +
> + cfg = virQEMUDriverGetConfig(driver);
> +
> + if (qemuDomainGetPreservedMounts(cfg, vm,
> + &devMountsPath, NULL,
> + &ndevMountsPath) < 0)
> + goto cleanup;
> +
> + for (i = 0; i < npaths; i++) {
> + if (qemuDomainDetachDeviceUnlink(driver, vm, paths[i],
> + devMountsPath, ndevMountsPath) < 0)
> + goto cleanup;
> + }
> +
> +
> + cleanup:
> + virStringListFreeCount(devMountsPath, ndevMountsPath);
> + virObjectUnref(cfg);
> + return ret;
> +}
> +
> +
> int
> qemuDomainNamespaceSetupDisk(virQEMUDriverPtr driver ATTRIBUTE_UNUSED,
> virDomainObjPtr vm,
> @@ -10050,13 +10087,10 @@ qemuDomainNamespaceSetupHostdev(virQEMUDriverPtr driver ATTRIBUTE_UNUSED,
>
>
> int
> -qemuDomainNamespaceTeardownHostdev(virQEMUDriverPtr driver,
> +qemuDomainNamespaceTeardownHostdev(virQEMUDriverPtr driver ATTRIBUTE_UNUSED,
> virDomainObjPtr vm,
> virDomainHostdevDefPtr hostdev)
> {
> - virQEMUDriverConfigPtr cfg = NULL;
> - char **devMountsPath = NULL;
> - size_t ndevMountsPath = 0;
> int ret = -1;
> char **paths = NULL;
> size_t i, npaths = 0;
> @@ -10068,25 +10102,14 @@ qemuDomainNamespaceTeardownHostdev(virQEMUDriverPtr driver,
> &npaths, &paths, NULL) < 0)
> goto cleanup;
>
> - cfg = virQEMUDriverGetConfig(driver);
> - if (qemuDomainGetPreservedMounts(cfg, vm,
> - &devMountsPath, NULL,
> - &ndevMountsPath) < 0)
> + if (npaths != 0 && qemuDomainNamespaceUnlinkPaths(vm, (const char **)paths, npaths) < 0)
Long line.
> goto cleanup;
>
Michal
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