Commit ad69444e authored Feb 24, 2017 by Wei Yang Committed by Linus Torvalds Feb 24, 2017

mm/page_alloc.c: remove redundant init code for ZONE_MOVABLE

arch_zone_lowest/highest_possible_pfn[] is set to 0 and [ZONE_MOVABLE]
is skipped in the loop.  No need to reset them to 0 again.

This patch just removes the redundant code.

Link: http://lkml.kernel.org/r/20170209141731.60208-1-richard.weiyang@gmail.com


Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 22c5cef1

mm/page_alloc.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -6489,8 +6489,6 @@ void __init free_area_init_nodes(unsigned long *max_zone_pfn)

		start_pfn = end_pfn;
		}
		arch_zone_lowest_possible_pfn[ZONE_MOVABLE] = 0;
		arch_zone_highest_possible_pfn[ZONE_MOVABLE] = 0;

		/* Find the PFNs that ZONE_MOVABLE begins at in each node */
		memset(zone_movable_pfn, 0, sizeof(zone_movable_pfn));

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