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authorHonggang Li <enjoymindful@gmail.com>2014-08-12 13:36:15 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-10-05 21:54:13 (GMT)
commitf9c27a7c7880c29c7579dea9134dfef355f6c3eb (patch)
tree7e5c335539d7bb476bea2c26f4cad9b167962aa6 /mm
parent767d0fbb89f87a2e386b953280b03739a74a8f83 (diff)
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percpu: free percpu allocation info for uniprocessor system
commit 3189eddbcafcc4d827f7f19facbeddec4424eba8 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/percpu.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index 25e2ea5..9bc1bf9 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1910,6 +1910,8 @@ 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 */