[XFS] Fix incorrect use of BMAPI_READ in unwritten extent handling

(luckily just cosmetic).

SGI-PV: 942232
SGI-Modid: xfs-linux-melb:xfs-kern:23718a

Signed-off-by: Nathan Scott <nathans@sgi.com>

fs/xfs/linux-2.6/xfs_aops.c

@@ -804,7 +804,7 @@ xfs_page_state_convert(
 				continue;
 			if (!iomp) {
 				err = xfs_map_blocks(inode, offset, len, &iomap,
-						BMAPI_READ|BMAPI_IGNSTATE);
+						BMAPI_WRITE|BMAPI_IGNSTATE);
 				if (err) {
 					goto error;
 				}

fs/xfs/xfs_iomap.c

@@ -226,13 +226,12 @@ xfs_iomap(
 		xfs_iomap_enter_trace(XFS_IOMAP_READ_ENTER, io, offset, count);
 		lockmode = XFS_LCK_MAP_SHARED(mp, io);
 		bmapi_flags = XFS_BMAPI_ENTIRE;
-		if (flags & BMAPI_IGNSTATE)
-			bmapi_flags |= XFS_BMAPI_IGSTATE;
 		break;
 	case BMAPI_WRITE:
 		xfs_iomap_enter_trace(XFS_IOMAP_WRITE_ENTER, io, offset, count);
 		lockmode = XFS_ILOCK_EXCL|XFS_EXTSIZE_WR;
-		bmapi_flags = 0;
+		if (flags & BMAPI_IGNSTATE)
+			bmapi_flags |= XFS_BMAPI_IGSTATE|XFS_BMAPI_ENTIRE;
 		XFS_ILOCK(mp, io, lockmode);
 		break;
 	case BMAPI_ALLOCATE: