Merge branch 'slab/for-6.12/kmem_cache_args' into slab/for-next

Merge kmem_cache_create() refactoring by Christian Brauner.

Note this includes a merge of the vfs.file tree that contains the
prerequisity kmem_cache_create_rcu() work.

diff --cc include/linux/slab.h
Simple merge

diff --cc mm/slab.h
Simple merge

diff --cc mm/slab_common.c
Simple merge

diff --cc mm/slub.c
Simple merge