Messages in this thread Patch in this message | | | Date | Thu, 4 Jun 2015 21:03:23 +0800 | From | Xishi Qiu <> | Subject | [RFC PATCH 09/12] mm: enable allocate mirrored memory at boot time |
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Add a boot option called "mirrorable" to allocate mirrored memory at boot time (after bootmem free).
Signed-off-by: Xishi Qiu <qiuxishi@huawei.com> --- mm/page_alloc.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 63b90ca..d4d2066 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -213,6 +213,13 @@ int user_min_free_kbytes = -1; #ifdef CONFIG_MEMORY_MIRROR struct mirror_info mirror_info; int sysctl_mirrorable = 0; + +static int __init set_mirrorable(char *p) +{ + sysctl_mirrorable = 1; + return 0; +} +early_param("mirrorable", set_mirrorable); #endif static unsigned long __meminitdata nr_kernel_pages; -- 2.0.0
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