On Tue, 25 May 2021, Vlastimil Babka wrote:

The function get_partial() finds a suitable page on a partial list, acquires
and returns its freelist and assigns the page pointer to kmem_cache_node.

	in kmem_cache_cpu ??

In later patch we will need more control over the kmem_cache_node assignment,

kmem_cache_cpu?

so instead return the page pointer to get_partial()'s caller and assign it
there. No functional change as all of this still happens with disabled irq.

Instead of passing a kmem_cache_cpu pointer pass a pointer to a pointer to
a page ....