block_write_full_page(): report ENOSPC

block_write_full_page() forgot to propagate ENPSOC into the address_space.

Cc: Guillaume Chazarain <guichaz@yahoo.fr>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

fs/buffer.c

@@ -1727,6 +1727,7 @@ static int __block_write_full_page(struct inode *inode, struct page *page,
 	} while ((bh = bh->b_this_page) != head);
 	SetPageError(page);
 	BUG_ON(PageWriteback(page));
+	mapping_set_error(page->mapping, err);
 	set_page_writeback(page);
 	do {
 		struct buffer_head *next = bh->b_this_page;