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authorAnshuman Khandual <anshuman.khandual@arm.com>2019-05-13 17:17:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-14 09:47:46 -0700
commit5e65af19e89ac33dc83e1869c78b33ed7099469b (patch)
treea26a26b6ed0206a842d1ebafdcdde39e6614b57b /mm/page_isolation.c
parentb6cfab7ad19d4920d5765e53042cfa62f2fced3d (diff)
downloadlinux-5e65af19e89ac33dc83e1869c78b33ed7099469b.tar.bz2
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>
Diffstat (limited to 'mm/page_isolation.c')
-rw-r--r--mm/page_isolation.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index 019280712e1b..e3638a5bafff 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -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;