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Subject[PATCH] mm: do_mincore() cleanup
Two cleanups:
1. remove redundant codes for hugetlb pages.
2. end = pmd_addr_end(addr, end) restricts [addr, end) within PMD_SIZE,
this may increase do_mincore() calls, remove it.

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
---
mm/mincore.c | 7 -------
1 files changed, 0 insertions(+), 7 deletions(-)

diff --git a/mm/mincore.c b/mm/mincore.c
index da2be56..1016233 100644
--- a/mm/mincore.c
+++ b/mm/mincore.c
@@ -225,13 +225,6 @@ static long do_mincore(unsigned long addr, unsigned long pages, unsigned char *v

end = min(vma->vm_end, addr + (pages << PAGE_SHIFT));

- if (is_vm_hugetlb_page(vma)) {
- mincore_hugetlb_page_range(vma, addr, end, vec);
- return (end - addr) >> PAGE_SHIFT;
- }
-
- end = pmd_addr_end(addr, end);
-
if (is_vm_hugetlb_page(vma))
mincore_hugetlb_page_range(vma, addr, end, vec);
else
--
1.7.1



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