diff options
| author | Takashi Iwai <tiwai@suse.de> | 2012-07-04 09:12:50 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-07-04 09:12:50 +0200 |
| commit | f68d891d85c8f9ab1af663ed3ceac18ad58dbabe (patch) | |
| tree | d92db7af512307ab5282eb62f3dd1741ac71d21f /mm/memory.c | |
| parent | 5780b627e24113323427c102175296ae43dfb9d7 (diff) | |
| parent | 3fd877d32cac31292628fb8f443543fc1989b49b (diff) | |
Merge branch 'topic/hda-beep' into topic/hda
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 * |