[127/173] mm/hugetlb: use helper function range_in_vma() in page_table_shareable()

Commit Message

Andrew Morton Feb. 24, 2021, 8:07 p.m. UTC

From: Miaohe Lin <[e-mail]>
Subject: mm/hugetlb: use helper function range_in_vma() in page_table_shareable()

We could use helper function range_in_vma() to check whether the vma is in
the desired range to simplify the code.

Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Miaohe Lin <[e-mail]>
Reviewed-by: Mike Kravetz <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 mm/hugetlb.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

--- a/mm/hugetlb.c~mm-hugetlb-use-helper-function-range_in_vma-in-page_table_shareable
+++ a/mm/hugetlb.c
@@ -5282,7 +5282,7 @@  static unsigned long page_table_shareabl
 	 */
 	if (pmd_index(addr) != pmd_index(saddr) ||
 	    vm_flags != svm_flags ||
-	    sbase < svma->vm_start || svma->vm_end < s_end)
+	    !range_in_vma(svma, sbase, s_end))
 		return 0;
 
 	return saddr;