diff options
Diffstat (limited to 'mm/filemap_xip.c')
| -rw-r--r-- | mm/filemap_xip.c | 37 |
1 files changed, 14 insertions, 23 deletions
diff --git a/mm/filemap_xip.c b/mm/filemap_xip.c index 82f4b8e..847d5d7 100644 --- a/mm/filemap_xip.c +++ b/mm/filemap_xip.c @@ -210,8 +210,7 @@ __xip_unmap (struct address_space * mapping, * * This function is derived from filemap_fault, but used for execute in place */ -static struct page *xip_file_fault(struct vm_area_struct *area, - struct fault_data *fdata) +static int xip_file_fault(struct vm_area_struct *area, struct vm_fault *vmf) { struct file *file = area->vm_file; struct address_space *mapping = file->f_mapping; @@ -222,19 +221,15 @@ static struct page *xip_file_fault(struct vm_area_struct *area, /* XXX: are VM_FAULT_ codes OK? */ size = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; - if (fdata->pgoff >= size) { - fdata->type = VM_FAULT_SIGBUS; - return NULL; - } + if (vmf->pgoff >= size) + return VM_FAULT_SIGBUS; page = mapping->a_ops->get_xip_page(mapping, - fdata->pgoff*(PAGE_SIZE/512), 0); + vmf->pgoff*(PAGE_SIZE/512), 0); if (!IS_ERR(page)) goto out; - if (PTR_ERR(page) != -ENODATA) { - fdata->type = VM_FAULT_OOM; - return NULL; - } + if (PTR_ERR(page) != -ENODATA) + return VM_FAULT_OOM; /* sparse block */ if ((area->vm_flags & (VM_WRITE | VM_MAYWRITE)) && @@ -242,26 +237,22 @@ static struct page *xip_file_fault(struct vm_area_struct *area, (!(mapping->host->i_sb->s_flags & MS_RDONLY))) { /* maybe shared writable, allocate new block */ page = mapping->a_ops->get_xip_page(mapping, - fdata->pgoff*(PAGE_SIZE/512), 1); - if (IS_ERR(page)) { - fdata->type = VM_FAULT_SIGBUS; - return NULL; - } + vmf->pgoff*(PAGE_SIZE/512), 1); + if (IS_ERR(page)) + return VM_FAULT_SIGBUS; /* unmap page at pgoff from all other vmas */ - __xip_unmap(mapping, fdata->pgoff); + __xip_unmap(mapping, vmf->pgoff); } else { /* not shared and writable, use xip_sparse_page() */ page = xip_sparse_page(); - if (!page) { - fdata->type = VM_FAULT_OOM; - return NULL; - } + if (!page) + return VM_FAULT_OOM; } out: - fdata->type = VM_FAULT_MINOR; page_cache_get(page); - return page; + vmf->page = page; + return VM_FAULT_MINOR; } static struct vm_operations_struct xip_file_vm_ops = { |
