diff options
| -rw-r--r-- | mm/memory.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/mm/memory.c b/mm/memory.c index 6fd827804bf5..e8a527885e8b 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2034,20 +2034,17 @@ static gfp_t __get_fault_gfp_mask(struct vm_area_struct *vma) * * We do this without the lock held, so that it can sleep if it needs to. */ -static int do_page_mkwrite(struct vm_area_struct *vma, struct page *page, - unsigned long address) +static int do_page_mkwrite(struct vm_fault *vmf) { - struct vm_fault vmf; int ret; + struct page *page = vmf->page; + unsigned int old_flags = vmf->flags; - vmf.address = address & PAGE_MASK; - vmf.pgoff = page->index; - vmf.flags = FAULT_FLAG_WRITE|FAULT_FLAG_MKWRITE; - vmf.gfp_mask = __get_fault_gfp_mask(vma); - vmf.page = page; - vmf.cow_page = NULL; + vmf->flags = FAULT_FLAG_WRITE|FAULT_FLAG_MKWRITE; - ret = vma->vm_ops->page_mkwrite(vma, &vmf); + ret = vmf->vma->vm_ops->page_mkwrite(vmf->vma, vmf); + /* Restore original flags so that caller is not surprised */ + vmf->flags = old_flags; if (unlikely(ret & (VM_FAULT_ERROR | VM_FAULT_NOPAGE))) return ret; if (unlikely(!(ret & VM_FAULT_LOCKED))) { @@ -2323,7 +2320,8 @@ static int wp_page_shared(struct vm_fault *vmf, struct page *old_page) int tmp; pte_unmap_unlock(vmf->pte, vmf->ptl); - tmp = do_page_mkwrite(vma, old_page, vmf->address); + vmf->page = old_page; + tmp = do_page_mkwrite(vmf); if (unlikely(!tmp || (tmp & (VM_FAULT_ERROR | VM_FAULT_NOPAGE)))) { put_page(old_page); @@ -3324,7 +3322,7 @@ static int do_shared_fault(struct vm_fault *vmf) */ if (vma->vm_ops->page_mkwrite) { unlock_page(vmf->page); - tmp = do_page_mkwrite(vma, vmf->page, vmf->address); + tmp = do_page_mkwrite(vmf); if (unlikely(!tmp || (tmp & (VM_FAULT_ERROR | VM_FAULT_NOPAGE)))) { put_page(vmf->page); |