mm/page_alloc: Fix try_alloc_pages

Fix an obvious bug. try_alloc_pages() should set_page_refcounted.

[ Not so obvious: it was probably correct at the time it was written but
  was at some point then rebased on top of v6.14-rc1.

  And at that point there was a semantic conflict with commit
  efabfe1 ("mm/page_alloc: move set_page_refcounted() to callers
  of get_page_from_freelist()") and became buggy.
							- Linus ]

Fixes: 97769a5 ("mm, bpf: Introduce try_alloc_pages() for opportunistic page allocation")
Signed-off-by: Alexei Starovoitov <[email protected]>
Reviewed-by: Shakeel Butt <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Acked-by: Vlastimil BAbka <[email protected]>
Reviewed-by: Harry Yoo <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Author: Alexei Starovoitov

mm/page_alloc.c

@@ -7385,6 +7385,9 @@ struct page *try_alloc_pages_noprof(int nid, unsigned int order)
 
 	/* Unlike regular alloc_pages() there is no __alloc_pages_slowpath(). */
 
+	if (page)
+		set_page_refcounted(page);
+
 	if (memcg_kmem_online() && page &&
 	    unlikely(__memcg_kmem_charge_page(page, alloc_gfp, order) != 0)) {
 		free_pages_nolock(page, order);