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| author | Grant Likely <grant.likely@secretlab.ca> | 2012-07-11 16:08:35 +0100 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-07-11 16:08:35 +0100 |
| commit | 80c1834fc86c2bbacb54a8fc3c04a8b0066b0996 (patch) | |
| tree | 8200248706960af8b779e9144f5b51c670602228 /mm/memory.c | |
| parent | 22076c7712be29a602de45b1c573f31adbd428a9 (diff) | |
| parent | bd0a521e88aa7a06ae7aabaed7ae196ed4ad867a (diff) | |
| download | talos-obmc-linux-80c1834fc86c2bbacb54a8fc3c04a8b0066b0996.tar.gz talos-obmc-linux-80c1834fc86c2bbacb54a8fc3c04a8b0066b0996.zip | |
Merge tag 'v3.5-rc6' into irqdomain/next
Linux 3.5-rc6
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/mm/memory.c b/mm/memory.c index 1b7dc662bf9f..2466d1250231 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1225,7 +1225,15 @@ static inline unsigned long zap_pmd_range(struct mmu_gather *tlb, next = pmd_addr_end(addr, end); if (pmd_trans_huge(*pmd)) { if (next - addr != HPAGE_PMD_SIZE) { - VM_BUG_ON(!rwsem_is_locked(&tlb->mm->mmap_sem)); +#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 split_huge_page_pmd(vma->vm_mm, pmd); } else if (zap_huge_pmd(tlb, vma, pmd, addr)) goto next; @@ -1366,7 +1374,7 @@ void unmap_vmas(struct mmu_gather *tlb, /** * zap_page_range - remove user pages in a given range * @vma: vm_area_struct holding the applicable pages - * @address: starting address of pages to zap + * @start: starting address of pages to zap * @size: number of bytes to zap * @details: details of nonlinear truncation or shared cache invalidation * |
