diff options
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/mm/memory.c b/mm/memory.c index ba94dec5b259..61a262b08e53 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -220,7 +220,6 @@ void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, bool fullmm) tlb->start = -1UL; tlb->end = 0; tlb->need_flush = 0; - tlb->fast_mode = (num_possible_cpus() == 1); tlb->local.next = NULL; tlb->local.nr = 0; tlb->local.max = ARRAY_SIZE(tlb->__pages); @@ -244,9 +243,6 @@ void tlb_flush_mmu(struct mmu_gather *tlb) tlb_table_flush(tlb); #endif - if (tlb_fast_mode(tlb)) - return; - for (batch = &tlb->local; batch; batch = batch->next) { free_pages_and_swap_cache(batch->pages, batch->nr); batch->nr = 0; @@ -288,11 +284,6 @@ int __tlb_remove_page(struct mmu_gather *tlb, struct page *page) VM_BUG_ON(!tlb->need_flush); - if (tlb_fast_mode(tlb)) { - free_page_and_swap_cache(page); - return 1; /* avoid calling tlb_flush_mmu() */ - } - batch = tlb->active; batch->pages[batch->nr++] = page; if (batch->nr == batch->max) { @@ -715,11 +706,11 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr, * Choose text because data symbols depend on CONFIG_KALLSYMS_ALL=y */ if (vma->vm_ops) - print_symbol(KERN_ALERT "vma->vm_ops->fault: %s\n", - (unsigned long)vma->vm_ops->fault); + printk(KERN_ALERT "vma->vm_ops->fault: %pSR\n", + vma->vm_ops->fault); if (vma->vm_file && vma->vm_file->f_op) - print_symbol(KERN_ALERT "vma->vm_file->f_op->mmap: %s\n", - (unsigned long)vma->vm_file->f_op->mmap); + printk(KERN_ALERT "vma->vm_file->f_op->mmap: %pSR\n", + vma->vm_file->f_op->mmap); dump_stack(); add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE); } @@ -3244,6 +3235,11 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma, page = alloc_zeroed_user_highpage_movable(vma, address); if (!page) goto oom; + /* + * The memory barrier inside __SetPageUptodate makes sure that + * preceeding stores to the page contents become visible before + * the set_pte_at() write. + */ __SetPageUptodate(page); if (mem_cgroup_newpage_charge(page, mm, GFP_KERNEL)) |