On Tue, Jul 28, 2020 at 08:11:40AM +0300, Mike Rapoport wrote:

From: Mike Rapoport <redacted>

The memory size calculation in cma_early_percent_memory() traverses
memblock.memory rather than simply call memblock_phys_mem_size(). The
comment in that function suggests that at some point there should have been
call to memblock_analyze() before memblock_phys_mem_size() could be used.
As of now, there is no memblock_analyze() at all and
memblock_phys_mem_size() can be used as soon as cold-plug memory is
registerd with memblock.

Replace loop over memblock.memory with a call to memblock_phys_mem_size().

Signed-off-by: Mike Rapoport <redacted>

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>