[libvirt] [PATCH v2 5/5] qemu: qemuDomainHotplugVcpus - separate out pin adjustment code
Ján Tomko
jtomko at redhat.com
Wed Apr 8 12:38:35 UTC 2015
On Tue, Apr 07, 2015 at 09:23:17AM -0400, John Ferlan wrote:
> Future IOThread setting patches would copy the code anyway, so create
> and generalize the adding of pindef for the vcpu into its own API
>
> Signed-off-by: John Ferlan <jferlan at redhat.com>
> ---
> src/qemu/qemu_driver.c | 92 +++++++++++++++++++++++++++++---------------------
> 1 file changed, 54 insertions(+), 38 deletions(-)
>
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index cec2758..1601ba3 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -4670,6 +4670,56 @@ qemuDomainHotplugAddCgroup(virCgroupPtr cgroup,
> }
>
> static int
> +qemuDomainHotplugAddPin(virBitmapPtr cpumask,
> + int index,
> + pid_t pid,
> + virDomainPinDefPtr **pindef_list,
> + size_t *npin,
> + virCgroupPtr cgroup)
> +{
> + int ret = -1;
> + virDomainPinDefPtr pindef = NULL;
> +
> + /* vm->def->cputune.* arrays can't be NULL if
> + * vm->def->cpumask is not NULL.
> + */
> + if (VIR_ALLOC(pindef) < 0)
> + goto cleanup;
> +
> + if (!(pindef->cpumask = virBitmapNewCopy(cpumask))) {
> + VIR_FREE(pindef);
> + goto cleanup;
> + }
> + pindef->id = index;
> + if (VIR_APPEND_ELEMENT_COPY(*pindef_list, *npin, pindef) < 0) {
> + virBitmapFree(pindef->cpumask);
> + VIR_FREE(pindef);
> + goto cleanup;
> + }
I'd rather split this function into two - one that adds the pin
definition and another that pins the thread
Jan.
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