mm: slub: Delete useless parameter of alloc_slab_page()

mm: slub: Delete useless parameter of alloc_slab_page()

The parameter @s is useless for alloc_slab_page(). It was added in 2014
by commit 5dfb41750992 ("sl[au]b: charge slabs to kmemcg explicitly"). The
need for it was removed in 2020 by commit 1f3147b49d75 ("mm: slub: call
account_slab_page() after slab page initialization"). Let's delete it.

[willy@infradead.org: Added detailed history of @s]

Signed-off-by: Xiongwei Song <sxwjean@gmail.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: David Rientjes <rientjes@google.com>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Link: https://lore.kernel.org/r/20220310140701.87908-3-sxwjean@me.com