(2) Filesystem capability requirements.
_require_chattr <letters>
+ _require_exportfs
(3) System call requirements.
tests to see if setting the append-only and immutable attributes on a file
(chattr +a +i) is supported.
+_require_exportfs
+
+ The test requires that the $TEST_DEV filesystem supports NFS export.
+ The test also requires the use of the open_by_handle_at() system call and
+ will be skipped if it isn't available in the kernel.
+
========================
SYSTEM CALL REQUIREMENTS