Messages in this thread Patch in this message | | | Date | Tue, 2 Oct 2012 13:14:10 -0700 (PDT) | From | David Rientjes <> | Subject | [patch sched/numa] mm/mpol: Fix build warning for UMA kernels |
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"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@google.com> --- 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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