mm/page_isolation.c: change the prototype of undo_isolate_page_range()
undo_isolate_page_range() never fails, so no need to return value. Link: http://lkml.kernel.org/r/1562075604-8979-1-git-send-email-kernelfans@gmail.com Signed-off-by: Pingfan Liu <kernelfans@gmail.com> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Qian Cai <cai@lca.pw> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -50,7 +50,7 @@ start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
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* Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE.
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* Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE.
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* target range is [start_pfn, end_pfn)
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* target range is [start_pfn, end_pfn)
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*/
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*/
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int
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void
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undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
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undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
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unsigned migratetype);
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unsigned migratetype);
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@ -230,7 +230,7 @@ undo:
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/*
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/*
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* Make isolated pages available again.
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* Make isolated pages available again.
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*/
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*/
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int undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
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void undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
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unsigned migratetype)
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unsigned migratetype)
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{
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{
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unsigned long pfn;
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unsigned long pfn;
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@ -247,7 +247,6 @@ int undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
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continue;
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continue;
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unset_migratetype_isolate(page, migratetype);
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unset_migratetype_isolate(page, migratetype);
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}
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}
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return 0;
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}
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}
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/*
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/*
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* Test all pages in the range is free(means isolated) or not.
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* Test all pages in the range is free(means isolated) or not.
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