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-rw-r--r--mm/filemap_xip.c37
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 = {
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