[libvirt] [PATCH] qemu: Drop qemuDomainMemoryLimit

Eric Blake eblake at redhat.com
Fri Aug 9 13:13:58 UTC 2013


On 08/09/2013 06:56 AM, Michal Privoznik wrote:
> This function is to guess the correct limit for maximal memory
> usage by qemu for given domain. This can never be guessed
> correctly, not to mention all the pains and sleepless nights this
> code has caused. Once somebody discovers algorithm to solve the
> Halting Problem, we can compute the limit algorithmically. But
> till then, this code should never see the light of the release
> again.
> ---
>  src/qemu/qemu_cgroup.c  |  3 +--
>  src/qemu/qemu_command.c |  2 +-
>  src/qemu/qemu_domain.c  | 49 -------------------------------------------------
>  src/qemu/qemu_domain.h  |  2 --
>  src/qemu/qemu_hotplug.c |  2 +-
>  5 files changed, 3 insertions(+), 55 deletions(-)

ACK.  Users that put an explicit limit in their XML are taking on their
own risk at guessing correctly; all other users should not be forced to
suffer from a bad guess on our part killing their domain.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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