/**
* gfs2_allocate_page_backing - Allocate blocks for a write fault
* @page: The (locked) page to allocate backing for
+ * @length: Size of the allocation
*
* We try to allocate all the blocks required for the page in one go. This
* might fail for various reasons, so we keep trying until all the blocks to
* back this page are allocated. If some of the blocks are already allocated,
* that is ok too.
*/
-static int gfs2_allocate_page_backing(struct page *page)
+static int gfs2_allocate_page_backing(struct page *page, unsigned int length)
{
u64 pos = page_offset(page);
- u64 size = PAGE_SIZE;
do {
struct iomap iomap = { };
- if (gfs2_iomap_get_alloc(page->mapping->host, pos, 1, &iomap))
+ if (gfs2_iomap_get_alloc(page->mapping->host, pos, length, &iomap))
return -EIO;
- iomap.length = min(iomap.length, size);
- size -= iomap.length;
+ if (length < iomap.length)
+ iomap.length = length;
+ length -= iomap.length;
pos += iomap.length;
- } while (size > 0);
+ } while (length > 0);
return 0;
}
if (gfs2_is_stuffed(ip))
ret = gfs2_unstuff_dinode(ip, page);
if (ret == 0)
- ret = gfs2_allocate_page_backing(page);
+ ret = gfs2_allocate_page_backing(page, PAGE_SIZE);
out_trans_end:
if (ret)