On 03.09.21 18:05, Eduardo Habkost wrote:
On Fri, Sep 03, 2021 at 03:08:04PM +0200, Juergen Gross wrote:In order to support high vcpu numbers per guest don't use on stack vcpu bitmasks. As all those currently used bitmasks are not used in functions subject to recursion it is fairly easy to replace them with percpu bitmasks. Disable preemption while such a bitmask is being used in order to avoid double usage in case we'd switch cpus. Signed-off-by: Juergen Gross <jgross@xxxxxxxx>Note that there's another patch that will introduce another KVM_MAX_VCPUS bitmap variable on the stack: https://lore.kernel.org/lkml/20210827092516.1027264-7-vkuznets@xxxxxxxxxx/ Considering that the patch is a bug fix, should this series be rebased on top of that?
Yes, I can do that. Juergen
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