Adjustments to t_renamerace now that ext2fs and ffs have good rename.

Index: tests/fs/vfs/t_renamerace.c
===================================================================
RCS file: /cvsroot/src/tests/fs/vfs/t_renamerace.c,v
retrieving revision 1.25
diff -p -u -r1.25 t_renamerace.c
--- tests/fs/vfs/t_renamerace.c	16 Feb 2012 02:47:56 -0000	1.25
+++ tests/fs/vfs/t_renamerace.c	7 Apr 2012 21:20:00 -0000
@@ -129,13 +129,9 @@ renamerace_dirs(const atf_tc_t *tc, cons
 		atf_tc_skip("rename not supported by file system");
 
 	/* XXX: msdosfs also sometimes hangs */
-	if (FSTYPE_EXT2FS(tc) || FSTYPE_MSDOS(tc))
+	if (FSTYPE_MSDOS(tc))
 		atf_tc_expect_signal(-1, "PR kern/43626");
 
-	/* XXX: unracy execution not caught */
-	if (FSTYPE_P2K_FFS(tc))
-		atf_tc_expect_fail("PR kern/44336"); /* child dies */
-
 	RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
 	RL(wrkpid = rump_sys_getpid());
 
@@ -154,14 +150,8 @@ renamerace_dirs(const atf_tc_t *tc, cons
 	 * Doesn't always trigger when run on a slow backend
 	 * (i.e. not on tmpfs/mfs).  So do the usual kludge.
 	 */
-	if (FSTYPE_EXT2FS(tc) || FSTYPE_MSDOS(tc))
+	if (FSTYPE_MSDOS(tc))
 		abort();
-
-	if (FSTYPE_P2K_FFS(tc)) {
-		/* XXX: some races may hang test run if we don't unmount */
-		puffs_fstest_unmount(tc, mp, MNT_FORCE);
-		atf_tc_fail("problem did not trigger");
-	}
 }
 
 ATF_TC_FSAPPLY(renamerace, "rename(2) race with file unlinked mid-operation");