Messages in this thread Patch in this message | | | From | Honggang Li <> | Subject | [PATCH] Free percpu allocation info for uniprocessor system | Date | Tue, 12 Aug 2014 21:36:15 +0800 |
| |
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> --- mm/percpu.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/mm/percpu.c b/mm/percpu.c index 2139e30..da997f9 100644 --- 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 */ -- 1.8.3.1
| |