[PATCH] qemu_process: Produce better debug message wrt domain namespaces

When going through debug log of a domain startup process, one can meet the following line: debug : qemuProcessLaunch:7668 : Building mount namespace But this is in fact wrong. Firstly, domain namespaces are just enabled in domain's privateData. Secondly, the debug message says nothing about actual state of namespace - whether it was enabled or not. Therefore, move the debug printing into qemuProcessEnableDomainNamespaces() and tweak it so that the actual value is reflected. Signed-off-by: Michal Privoznik <mprivozn@redhat.com> --- src/qemu/qemu_process.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index e96b7689a3..68ced01ab2 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -7378,11 +7378,17 @@ qemuProcessEnableDomainNamespaces(virQEMUDriver *driver, virDomainObj *vm) { g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver); + const char *state = "disabled"; if (virBitmapIsBitSet(cfg->namespaces, QEMU_DOMAIN_NS_MOUNT) && qemuDomainEnableNamespace(vm, QEMU_DOMAIN_NS_MOUNT) < 0) return -1; + if (qemuDomainNamespaceEnabled(vm, QEMU_DOMAIN_NS_MOUNT)) + state = "enabled"; + + VIR_DEBUG("Mount namespace for domain name=%s are %s", + vm->def->name, state); return 0; } @@ -7706,8 +7712,6 @@ qemuProcessLaunch(virConnectPtr conn, qemuDomainLogContextMarkPosition(logCtxt); - VIR_DEBUG("Building mount namespace"); - if (qemuProcessEnableDomainNamespaces(driver, vm) < 0) goto cleanup; -- 2.39.1

On 2/7/23 04:17, Michal Privoznik wrote:
When going through debug log of a domain startup process, one can meet the following line:
debug : qemuProcessLaunch:7668 : Building mount namespace
But this is in fact wrong. Firstly, domain namespaces are just enabled in domain's privateData. Secondly, the debug message says nothing about actual state of namespace - whether it was enabled or not.
Therefore, move the debug printing into qemuProcessEnableDomainNamespaces() and tweak it so that the actual value is reflected.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> --- src/qemu/qemu_process.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index e96b7689a3..68ced01ab2 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -7378,11 +7378,17 @@ qemuProcessEnableDomainNamespaces(virQEMUDriver *driver, virDomainObj *vm) { g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver); + const char *state = "disabled";
if (virBitmapIsBitSet(cfg->namespaces, QEMU_DOMAIN_NS_MOUNT) && qemuDomainEnableNamespace(vm, QEMU_DOMAIN_NS_MOUNT) < 0) return -1;
+ if (qemuDomainNamespaceEnabled(vm, QEMU_DOMAIN_NS_MOUNT)) + state = "enabled"; + + VIR_DEBUG("Mount namespace for domain name=%s are %s", + vm->def->name, state);
Nit: s/are/is/ since 'namespace' is singular.
return 0; }
@@ -7706,8 +7712,6 @@ qemuProcessLaunch(virConnectPtr conn,
qemuDomainLogContextMarkPosition(logCtxt);
- VIR_DEBUG("Building mount namespace"); - if (qemuProcessEnableDomainNamespaces(driver, vm) < 0) goto cleanup;
Reviewed-by: Jim Fehlig <jfehlig@suse.com> Regards, Jim

On 2/7/23 19:30, Jim Fehlig wrote:
On 2/7/23 04:17, Michal Privoznik wrote:
When going through debug log of a domain startup process, one can meet the following line:
debug : qemuProcessLaunch:7668 : Building mount namespace
But this is in fact wrong. Firstly, domain namespaces are just enabled in domain's privateData. Secondly, the debug message says nothing about actual state of namespace - whether it was enabled or not.
Therefore, move the debug printing into qemuProcessEnableDomainNamespaces() and tweak it so that the actual value is reflected.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> --- src/qemu/qemu_process.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index e96b7689a3..68ced01ab2 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -7378,11 +7378,17 @@ qemuProcessEnableDomainNamespaces(virQEMUDriver *driver, virDomainObj *vm) { g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver); + const char *state = "disabled"; if (virBitmapIsBitSet(cfg->namespaces, QEMU_DOMAIN_NS_MOUNT) && qemuDomainEnableNamespace(vm, QEMU_DOMAIN_NS_MOUNT) < 0) return -1; + if (qemuDomainNamespaceEnabled(vm, QEMU_DOMAIN_NS_MOUNT)) + state = "enabled"; + + VIR_DEBUG("Mount namespace for domain name=%s are %s", + vm->def->name, state);
Nit: s/are/is/ since 'namespace' is singular.
Yeah. I went back and forth on "namespaces are enabled/disabled" and just as I decided on singular I forgot to read it again, whether the sentence makes sense.
return 0; } @@ -7706,8 +7712,6 @@ qemuProcessLaunch(virConnectPtr conn, qemuDomainLogContextMarkPosition(logCtxt); - VIR_DEBUG("Building mount namespace"); - if (qemuProcessEnableDomainNamespaces(driver, vm) < 0) goto cleanup;
Reviewed-by: Jim Fehlig <jfehlig@suse.com>
Thanks! Michal
participants (3)
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Jim Fehlig
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Michal Privoznik
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Michal Prívozník