On Tue, Aug 31, 2021 at 09:13:55AM +0200, Peter Krempa wrote:
On Mon, Aug 30, 2021 at 00:30:42 -0400, Masayoshi Mizuma wrote:
> From: Masayoshi Mizuma <m.mizuma(a)jp.fujitsu.com>
>
> Split out the statement to handle whether the qemu is allowed to reboot
> or not. So that it gets available for the later patch.
>
> Signed-off-by: Masayoshi Mizuma <m.mizuma(a)jp.fujitsu.com>
> ---
> src/qemu/qemu_process.c | 17 +++++++++++++----
> src/qemu/qemu_process.h | 2 ++
> 2 files changed, 15 insertions(+), 4 deletions(-)
>
> diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
> index 3b4af61bf8..f4e67c70ad 100644
> --- a/src/qemu/qemu_process.c
> +++ b/src/qemu/qemu_process.c
> @@ -6360,6 +6360,18 @@ qemuProcessPrepareHostHostdevs(virDomainObj *vm)
> return 0;
> }
>
> +bool
> +qemuProcessRebootAllowed(const virDomainDef *def)
> +{
> + if (def->onReboot == VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY &&
> + def->onPoweroff == VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY &&
> + (def->onCrash == VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY ||
> + def->onCrash == VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_DESTROY)) {
> + return false;
> + } else {
> + return true;
> + }
> +}
if (COND)
return true/false;
else
return false/true;
is an anti-pattern. The value can be directly returned. In addition it's
missing a function comment when this is actually used since you are
moving it from the place which is doing the feature check.
Thank you for pointing it out. I got it.
>
> static void
> qemuProcessPrepareAllowReboot(virDomainObj *vm)
> @@ -6375,10 +6387,7 @@ qemuProcessPrepareAllowReboot(virDomainObj *vm)
> if (priv->allowReboot != VIR_TRISTATE_BOOL_ABSENT)
> return;
>
> - if (def->onReboot == VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY &&
> - def->onPoweroff == VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY &&
> - (def->onCrash == VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY ||
> - def->onCrash == VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_DESTROY)) {
> + if (!qemuProcessRebootAllowed(def)) {
> priv->allowReboot = VIR_TRISTATE_BOOL_NO;
> } else {
> priv->allowReboot = VIR_TRISTATE_BOOL_YES;
Here we can use virTristateBoolFromBool instead of an if statement.
I'll go with:
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 3b4af61bf8..03915f559c 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -6361,6 +6361,24 @@ qemuProcessPrepareHostHostdevs(virDomainObj *vm)
}
+/**
+ * qemuProcessRebootAllowed:
+ * @def: domain definition
+ *
+ * This function encapsulates the logic which dictated whether '-no-reboot' was
+ * used instead of '-no-shutdown' which is used QEMU versions which don't
+ * support the 'set-action' QMP command.
+ */
+bool
+qemuProcessRebootAllowed(const virDomainDef *def)
+{
+ return def->onReboot != VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY ||
+ def->onPoweroff != VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY ||
+ (def->onCrash != VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY &&
+ def->onCrash != VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_DESTROY);
+}
+
+
static void
qemuProcessPrepareAllowReboot(virDomainObj *vm)
{
@@ -6375,14 +6393,7 @@ qemuProcessPrepareAllowReboot(virDomainObj *vm)
if (priv->allowReboot != VIR_TRISTATE_BOOL_ABSENT)
return;
- if (def->onReboot == VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY &&
- def->onPoweroff == VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY &&
- (def->onCrash == VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY ||
- def->onCrash == VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_DESTROY)) {
- priv->allowReboot = VIR_TRISTATE_BOOL_NO;
- } else {
- priv->allowReboot = VIR_TRISTATE_BOOL_YES;
- }
+ priv->allowReboot = virTristateBoolFromBool(qemuProcessRebootAllowed(def));
}
diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h
index 93103eb530..f9fa140e6d 100644
--- a/src/qemu/qemu_process.h
+++ b/src/qemu/qemu_process.h
@@ -242,3 +242,5 @@ void qemuProcessQMPFree(qemuProcessQMP *proc);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(qemuProcessQMP, qemuProcessQMPFree);
int qemuProcessQMPStart(qemuProcessQMP *proc);
+
+bool qemuProcessRebootAllowed(const virDomainDef *def);
Thanks it's excellent! Should I post the series with your changes?
- Masa