percpu: free percpu allocation info for uniprocessor system

Currently, only SMP system free the percpu allocation info. Uniprocessor system should free it too. For example, one x86 UML virtual machine with 256MB memory, UML kernel wastes one page memory. Signed-off-by: Honggang Li <enjoymindful@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org
AhmedMostafa16 · Aug 16, 2014 · 3189edd · 3189edd
1 parent 849f516
commit 3189edd
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/mm/percpu.c b/mm/percpu.c
@@ -1932,6 +1932,8 @@ void __init setup_per_cpu_areas(void)
 
 	if (pcpu_setup_first_chunk(ai, fc) < 0)
 		panic("Failed to initialize percpu areas.");
+
+	pcpu_free_alloc_info(ai);
 }
 
 #endif	/* CONFIG_SMP */