common: check if a given rename flag is supported in _require_renameat2
[xfstests-dev.git] / common / renameat2
index a33516972088b69736a241a37c201c61166ddf7c..2538141caf728da5c04f1b2974c824ba388add11 100644 (file)
@@ -1,26 +1,9 @@
-######
-#
-# renameat2 helpers
-#
-#-----------------------------------------------------------------------
+##/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 # Copyright (c) 2014 Miklos Szeredi.  All Rights Reserved.
 #
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it would be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write the Free Software Foundation,
-# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-#-----------------------------------------------------------------------
-#
+# renameat2 helpers
 
-#
 # Setup source or dest
 #
 _setup_one()
@@ -118,12 +101,41 @@ _rename_tests()
 #
 # This checks whether the renameat2 syscall is supported
 #
-_requires_renameat2()
+_require_renameat2()
 {
+       local flags=$1
+       local rename_dir=$TEST_DIR/$$
+       local cmd=""
+
        if test ! -x src/renameat2; then
                _notrun "renameat2 binary not found"
        fi
-       if ! src/renameat2 -t; then
+
+       mkdir $rename_dir
+       touch $rename_dir/foo
+       case $flags in
+       "noreplace")
+               cmd="-n $rename_dir/foo $rename_dir/bar"
+               ;;
+       "exchange")
+               touch $rename_dir/bar
+               cmd="-x $rename_dir/foo $rename_dir/bar"
+               ;;
+       "whiteout")
+               touch $rename_dir/bar
+               cmd="-w $rename_dir/foo $rename_dir/bar"
+               ;;
+       "")
+               cmd=""
+               ;;
+       *)
+               rm -rf $rename_dir
+               _fail "_require_renameat2: only support noreplace,exchange,whiteout rename flags"
+               ;;
+       esac
+       if ! src/renameat2 -t $cmd; then
+               rm -rf $rename_dir
                _notrun "kernel doesn't support renameat2 syscall"
        fi
+       rm -rf $rename_dir
 }