mm/page_isolation.c: remove redundant pfn_valid_within() in __first_valid_page()
pfn_valid_within() calls pfn_valid() when CONFIG_HOLES_IN_ZONE making it redundant for both definitions (w/wo CONFIG_MEMORY_HOTPLUG) of the helper pfn_to_online_page() which either calls pfn_valid() or pfn_valid_within(). pfn_valid_within() being 1 when !CONFIG_HOLES_IN_ZONE is irrelevant either way. This does not change functionality. Link: http://lkml.kernel.org/r/1553141595-26907-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: Zi Yan <ziy@nvidia.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -151,8 +151,6 @@ __first_valid_page(unsigned long pfn, unsigned long nr_pages)
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for (i = 0; i < nr_pages; i++) {
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for (i = 0; i < nr_pages; i++) {
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struct page *page;
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struct page *page;
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if (!pfn_valid_within(pfn + i))
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continue;
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page = pfn_to_online_page(pfn + i);
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page = pfn_to_online_page(pfn + i);
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if (!page)
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if (!page)
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continue;
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continue;
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