diff options
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/mm/memory.c b/mm/memory.c index 95d0cce63583..1ce2e2a734fc 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -82,7 +82,6 @@ EXPORT_SYMBOL(max_mapnr); EXPORT_SYMBOL(mem_map); #endif -unsigned long num_physpages; /* * A number of key systems in x86 including ioremap() rely on the assumption * that high_memory defines the upper bound on direct map memory, then end @@ -92,7 +91,6 @@ unsigned long num_physpages; */ void * high_memory; -EXPORT_SYMBOL(num_physpages); EXPORT_SYMBOL(high_memory); /* @@ -1101,6 +1099,7 @@ static unsigned long zap_pte_range(struct mmu_gather *tlb, spinlock_t *ptl; pte_t *start_pte; pte_t *pte; + unsigned long range_start = addr; again: init_rss_vec(rss); @@ -1151,7 +1150,7 @@ again: if (pte_dirty(ptent)) set_page_dirty(page); if (pte_young(ptent) && - likely(!VM_SequentialReadHint(vma))) + likely(!(vma->vm_flags & VM_SEQ_READ))) mark_page_accessed(page); rss[MM_FILEPAGES]--; } @@ -1206,12 +1205,14 @@ again: force_flush = 0; #ifdef HAVE_GENERIC_MMU_GATHER - tlb->start = addr; - tlb->end = end; + tlb->start = range_start; + tlb->end = addr; #endif tlb_flush_mmu(tlb); - if (addr != end) + if (addr != end) { + range_start = addr; goto again; + } } return addr; @@ -2904,7 +2905,7 @@ static inline void unmap_mapping_range_tree(struct rb_root *root, details->first_index, details->last_index) { vba = vma->vm_pgoff; - vea = vba + ((vma->vm_end - vma->vm_start) >> PAGE_SHIFT) - 1; + vea = vba + vma_pages(vma) - 1; /* Assume for now that PAGE_CACHE_SHIFT == PAGE_SHIFT */ zba = details->first_index; if (zba < vba) |