lkml.org 
[lkml]   [2014]   [Aug]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] Free percpu allocation info for uniprocessor system
Date
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


\
 
 \ /
  Last update: 2014-08-12 15:41    [W:0.032 / U:0.452 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site