diff options
| -rw-r--r-- | include/linux/mm.h | 3 | ||||
| -rw-r--r-- | mm/memory.c | 18 | ||||
| -rw-r--r-- | mm/mmap.c | 4 |
3 files changed, 12 insertions, 13 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 74aa71bea1e4..0aeded3a2f7c 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -898,8 +898,7 @@ void zap_page_range(struct vm_area_struct *vma, unsigned long address, unsigned long size, struct zap_details *); void unmap_vmas(struct mmu_gather *tlb, struct vm_area_struct *start_vma, unsigned long start_addr, - unsigned long end_addr, unsigned long *nr_accounted, - struct zap_details *); + unsigned long end_addr, unsigned long *nr_accounted); /** * mm_walk - callbacks for walk_page_range diff --git a/mm/memory.c b/mm/memory.c index 6105f475fa86..f7b6c9859796 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1340,7 +1340,6 @@ static void unmap_single_vma(struct mmu_gather *tlb, * @start_addr: virtual address at which to start unmapping * @end_addr: virtual address at which to end unmapping * @nr_accounted: Place number of unmapped pages in vm-accountable vma's here - * @details: details of nonlinear truncation or shared cache invalidation * * Unmap all pages in the vma list. * @@ -1355,15 +1354,13 @@ static void unmap_single_vma(struct mmu_gather *tlb, */ void unmap_vmas(struct mmu_gather *tlb, struct vm_area_struct *vma, unsigned long start_addr, - unsigned long end_addr, unsigned long *nr_accounted, - struct zap_details *details) + unsigned long end_addr, unsigned long *nr_accounted) { struct mm_struct *mm = vma->vm_mm; mmu_notifier_invalidate_range_start(mm, start_addr, end_addr); for ( ; vma && vma->vm_start < end_addr; vma = vma->vm_next) - unmap_single_vma(tlb, vma, start_addr, end_addr, nr_accounted, - details); + unmap_single_vma(tlb, vma, start_addr, end_addr, nr_accounted, NULL); mmu_notifier_invalidate_range_end(mm, start_addr, end_addr); } @@ -1376,19 +1373,22 @@ void unmap_vmas(struct mmu_gather *tlb, * * Caller must protect the VMA list */ -void zap_page_range(struct vm_area_struct *vma, unsigned long address, +void zap_page_range(struct vm_area_struct *vma, unsigned long start, unsigned long size, struct zap_details *details) { struct mm_struct *mm = vma->vm_mm; struct mmu_gather tlb; - unsigned long end = address + size; + unsigned long end = start + size; unsigned long nr_accounted = 0; lru_add_drain(); tlb_gather_mmu(&tlb, mm, 0); update_hiwater_rss(mm); - unmap_vmas(&tlb, vma, address, end, &nr_accounted, details); - tlb_finish_mmu(&tlb, address, end); + mmu_notifier_invalidate_range_start(mm, start, end); + for ( ; vma && vma->vm_start < end; vma = vma->vm_next) + unmap_single_vma(&tlb, vma, start, end, &nr_accounted, details); + mmu_notifier_invalidate_range_end(mm, start, end); + tlb_finish_mmu(&tlb, start, end); } /** diff --git a/mm/mmap.c b/mm/mmap.c index 848ef52d9603..58806106fab6 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1917,7 +1917,7 @@ static void unmap_region(struct mm_struct *mm, lru_add_drain(); tlb_gather_mmu(&tlb, mm, 0); update_hiwater_rss(mm); - unmap_vmas(&tlb, vma, start, end, &nr_accounted, NULL); + unmap_vmas(&tlb, vma, start, end, &nr_accounted); vm_unacct_memory(nr_accounted); free_pgtables(&tlb, vma, prev ? prev->vm_end : FIRST_USER_ADDRESS, next ? next->vm_start : 0); @@ -2305,7 +2305,7 @@ void exit_mmap(struct mm_struct *mm) tlb_gather_mmu(&tlb, mm, 1); /* update_hiwater_rss(mm) here? but nobody should be looking */ /* Use -1 here to ensure all VMAs in the mm are unmapped */ - unmap_vmas(&tlb, vma, 0, -1, &nr_accounted, NULL); + unmap_vmas(&tlb, vma, 0, -1, &nr_accounted); vm_unacct_memory(nr_accounted); free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, 0); |