From f70029bbaacbfa8f082d2b4988717cba4e269f17 Mon Sep 17 00:00:00 2001 From: Michal Hocko Date: Thu, 6 Jul 2017 15:41:02 -0700 Subject: mm, memory_hotplug: drop CONFIG_MOVABLE_NODE Commit 20b2f52b73fe ("numa: add CONFIG_MOVABLE_NODE for movable-dedicated node") has introduced CONFIG_MOVABLE_NODE without a good explanation on why it is actually useful. It makes a lot of sense to make movable node semantic opt in but we already have that because the feature has to be explicitly enabled on the kernel command line. A config option on top only makes the configuration space larger without a good reason. It also adds an additional ifdefery that pollutes the code. Just drop the config option and make it de-facto always enabled. This shouldn't introduce any change to the semantic. Link: http://lkml.kernel.org/r/20170529114141.536-3-mhocko@kernel.org Signed-off-by: Michal Hocko Acked-by: Reza Arbab Acked-by: Vlastimil Babka Cc: Mel Gorman Cc: Andrea Arcangeli Cc: Jerome Glisse Cc: Yasuaki Ishimatsu Cc: Xishi Qiu Cc: Kani Toshimitsu Cc: Chen Yucong Cc: Joonsoo Kim Cc: Andi Kleen Cc: David Rientjes Cc: Daniel Kiper Cc: Igor Mammedov Cc: Vitaly Kuznetsov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memory_hotplug.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'mm/memory_hotplug.c') diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 937319899e61..0dc8cf0a59d7 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1572,11 +1572,7 @@ check_pages_isolated(unsigned long start_pfn, unsigned long end_pfn) static int __init cmdline_parse_movable_node(char *p) { -#ifdef CONFIG_MOVABLE_NODE movable_node_enabled = true; -#else - pr_warn("movable_node option not supported\n"); -#endif return 0; } early_param("movable_node", cmdline_parse_movable_node); -- cgit v1.2.1