Commit 3189eddb authored Aug 12, 2014 by Honggang Li Committed by Tejun Heo Aug 16, 2014

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

parent 849f5169

mm/percpu.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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 */