Re: [PATCH kernel] KVM: PPC: Book3S: Suppress warnings when allocating too big memory slots
Michael Ellerman <[email protected]>
| Newsgroups | org.kernel.vger.kvm-ppc,org.ozlabs.lists.linuxppc-dev |
|---|---|
| Message-ID | <[email protected]> |
On Wed, 1 Sep 2021 18:45:12 +1000, Alexey Kardashevskiy wrote:
> The userspace can trigger "vmalloc size %lu allocation failure: exceeds
> total pages" via the KVM_SET_USER_MEMORY_REGION ioctl.
>
> This silences the warning by checking the limit before calling vzalloc()
> and returns ENOMEM if failed.
>
> This does not call underlying valloc helpers as __vmalloc_node() is only
> exported when CONFIG_TEST_VMALLOC_MODULE and __vmalloc_node_range() is not
> exported at all.
>
> [...]
Applied to powerpc/next.
[1/1] KVM: PPC: Book3S: Suppress warnings when allocating too big memory slots
https://git.kernel.org/powerpc/c/511d25d6b789fffcb20a3eb71899cf974a31bd9d
cheers