[PATCH v4 1/8] mm: Convert an open-coded VM_BUG_ON_VMA
From: Matthew Wilcox <hidden>
Date: 2016-01-31 12:09:28
Also in:
linux-fsdevel, lkml, nvdimm
Subsystem:
memory management, memory management - core, the rest · Maintainers:
Andrew Morton, David Hildenbrand, Linus Torvalds
From: Matthew Wilcox <redacted> Spotted during PUD support review. Reported-by: Kirill A. Shutemov <redacted> Signed-off-by: Matthew Wilcox <redacted> --- mm/memory.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/mm/memory.c b/mm/memory.c
index a2eaeef..324b40b 100644
--- a/mm/memory.c
+++ b/mm/memory.c@@ -1185,15 +1185,7 @@ static inline unsigned long zap_pmd_range(struct mmu_gather *tlb, next = pmd_addr_end(addr, end); if (pmd_trans_huge(*pmd) || pmd_devmap(*pmd)) { if (next - addr != HPAGE_PMD_SIZE) { -#ifdef CONFIG_DEBUG_VM - if (!rwsem_is_locked(&tlb->mm->mmap_sem)) { - pr_err("%s: mmap_sem is unlocked! addr=0x%lx end=0x%lx vma->vm_start=0x%lx vma->vm_end=0x%lx\n", - __func__, addr, end, - vma->vm_start, - vma->vm_end); - BUG(); - } -#endif + VM_BUG_ON_VMA(!rwsem_is_locked(&tlb->mm->mmap_sem), vma); split_huge_pmd(vma, pmd, addr); } else if (zap_huge_pmd(tlb, vma, pmd, addr)) goto next;
--
2.7.0.rc3
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