"mm, mpol: Use special PROT_NONE to migrate pages" causes a build warning
when CONFIG_NUMA is not enabled:
mm/huge_memory.c: In function 'do_huge_pmd_prot_none':
mm/huge_memory.c:745: warning: unused variable 'node'
"node" is only used once, so avoid using it altogether.
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
---
mm/huge_memory.c | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -742,7 +742,6 @@ void do_huge_pmd_prot_none(struct mm_struct *mm, struct vm_area_struct *vma,
{
unsigned long haddr = address & HPAGE_PMD_MASK;
struct page *page = NULL;
- int node;
spin_lock(&mm->page_table_lock);
if (unlikely(!pmd_same(*pmd, entry)))
@@ -765,8 +764,7 @@ void do_huge_pmd_prot_none(struct mm_struct *mm, struct vm_area_struct *vma,
* XXX should we serialize against split_huge_page ?
*/
- node = mpol_misplaced(page, vma, haddr, mm->numa_big);
- if (node == -1)
+ if (mpol_misplaced(page, vma, haddr, mm->numa_big) == -1)
goto do_fixup;
/*
--
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