--- 2.4.17rc2aa2/mm/filemap.c.~1~	Wed Dec 19 03:43:23 2001
+++ 2.4.17rc2aa2/mm/filemap.c	Fri Dec 21 02:21:07 2001
@@ -3026,8 +3025,14 @@
 
 		kaddr = kmap(page);
 		status = mapping->a_ops->prepare_write(file, page, offset, offset+bytes);
-		if (status)
+		if (status) {
+			if (status == -ENOSPC && inode->i_op && inode->i_op->truncate) {
+				lock_kernel();
+				inode->i_op->truncate(inode);
+				unlock_kernel();
+			}
 			goto unlock;
+		}
 		page_fault = __copy_from_user(kaddr+offset, buf, bytes);
 		flush_dcache_page(page);
 		status = mapping->a_ops->commit_write(file, page, offset, offset+bytes);
@@ -3090,6 +3095,14 @@
 		if (end > inode->i_size && !S_ISBLK(inode->i_mode)) {
 			inode->i_size = end;
 			mark_inode_dirty(inode);
+		}
+		/* there's the possibility that some get_block left some leftover */
+		if (written != count) {
+			if (inode->i_op && inode->i_op->truncate) {
+				lock_kernel();
+				inode->i_op->truncate(inode);
+				unlock_kernel();
+			}
 		}
 		*ppos = end;
 		invalidate_inode_pages2(mapping);