[PATCH 6/9] Add the ability to require O_TMPFILE to be supported for a test

[David Howells]

Provide a '_require_o_tmpfile' clause so that a test can require than
O_TMPFILE be supported by the filesystem being tested.

Signed-off-by: David Howells <dhowells at redhat.com>
cc: linux-afs at lists.infradead.org
---

 common/rc                    |    9 +++++++++
 doc/requirement-checking.txt |    7 +++++++
 tests/generic/531            |    1 +
 3 files changed, 17 insertions(+)

diff --git a/common/rc b/common/rc
index e25967d9..c0659215 100644
--- a/common/rc
+++ b/common/rc
@@ -4640,6 +4640,15 @@ _require_unix_perm_checking()
 	esac
 }
 
+_require_o_tmpfile()
+{
+	case $FSTYP in
+	afs)
+		_notrun "O_TMPFILE is not supported on $FSTYP"
+		;;
+	esac
+}
+
 init_rc
 
 ################################################################################
diff --git a/doc/requirement-checking.txt b/doc/requirement-checking.txt
index 9be7a84c..b708887b 100644
--- a/doc/requirement-checking.txt
+++ b/doc/requirement-checking.txt
@@ -21,6 +21,7 @@ they have.  This is done with _require_<xxx> macros, which may take parameters.
 	_require_sgid_inheritance
 	_require_use_local_uidgid
 	_require_unix_perm_checking
+	_require_o_tmpfile
 
  (3) System call requirements.
 
@@ -129,6 +130,12 @@ _require_unix_perm_checking
      some alternative distributed permissions model involving authentication
      tokens rather than the local fsuid/fsgid.
 
+_require_o_tmpfile
+
+     The test requires that O_TMPFILE is supported by open() on that
+     filesystem, thereby allowing the creation of temporary files to be used or
+     tested.
+
 
 ========================
 SYSTEM CALL REQUIREMENTS
diff --git a/tests/generic/531 b/tests/generic/531
index e76418ca..2f3b1dc6 100755
--- a/tests/generic/531
+++ b/tests/generic/531
@@ -32,6 +32,7 @@ _cleanup()
 _supported_fs generic
 _require_scratch
 _require_test_program "t_open_tmpfiles"
+_require_o_tmpfile
 
 rm -f $seqres.full
 _scratch_mkfs >> $seqres.full 2>&1