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authorHonggang Li <enjoymindful@gmail.com>2014-08-12 17:36:15 +0400
committerTejun Heo <tj@kernel.org>2014-08-16 16:59:02 +0400
commit3189eddbcafcc4d827f7f19facbeddec4424eba8 (patch)
tree0cb121567f2368d356f9b8900d852399aba6b842
parent849f5169097e1ba35b90ac9df76b5bb6f9c0aabd (diff)
downloadlinux-3189eddbcafcc4d827f7f19facbeddec4424eba8.tar.xz
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
-rw-r--r--mm/percpu.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index 2139e30a4b44..da997f9800bd 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 */