[PATCH v2] powerpc/mm/nvdimm: Add an informative message if we fail to allocate altmap block

[Michael Ellerman]

On Mon, 2019-07-01 at 14:33:38 UTC, "Aneesh Kumar K.V" wrote:
> Allocation from altmap area can fail based on vmemmap page size used. Add kernel
> info message to indicate the failure. That allows the user to identify whether they
> are really using persistent memory reserved space for per-page metadata.
> 
> The message looks like:
> [  136.587212] altmap block allocation failed, falling back to system memory
> 
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.ibm.com>
> Reviewed-by: Oliver O'Halloran <oohall at gmail.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/c0b1b23b9c87569d5f90d06e86f26b31b544fa1e

cheers