Add the alloc_flags parameter to allocate_slab() and new_slab() so it can be used to determine if spinning is allowed, independently from gfp flags. refill_objects() passes SLAB_ALLOC_DEFAULT because it can only be reached from contexts that allow spinning. Link: https://patch.msgid.link/20260610-slab_alloc_flags-v2-8-7190909db118@kernel.org Reviewed-by: Hao Li <hao.li@linux.dev> Reviewed-by: Suren Baghdasaryan <surenb@google.com> Reviewed-by: Harry Yoo (Oracle) <harry@kernel.org> Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>