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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>
hifive-unleashed-5.2
Anshuman Khandual 2019-05-13 17:17:50 -07:00 committed by Linus Torvalds
parent b6cfab7ad1
commit 5e65af19e8
1 changed files with 0 additions and 2 deletions
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mm/page_isolation.c
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@ -151,8 +151,6 @@ __first_valid_page(unsigned long pfn, unsigned long nr_pages)
for (i = 0; i < nr_pages; i++) {
struct page *page;
if (!pfn_valid_within(pfn + i))
continue;
page = pfn_to_online_page(pfn + i);
if (!page)
continue;