generic: check noreplace renameat2 syscall

Check with RENAME_NOREPLACE flag.  This flag indicates that the
rename must fail if the target of the rename exists.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

tests/generic/024

@@ -0,0 +1,64 @@
+#! /bin/bash
+# FS QA Test No. generic/024
+#
+# Check renameat2 syscall with RENAME_NOREPLACE flag
+#
+#-----------------------------------------------------------------------
+# 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
+#-----------------------------------------------------------------------
+#
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1	# failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+    cd /
+    rm -f $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/renameat2
+
+_supported_fs generic
+_supported_os Linux
+
+_requires_renameat2
+
+rename_dir=$TEST_DIR/$$
+mkdir $rename_dir
+touch $rename_dir/foo
+if ! src/renameat2 -t -n $rename_dir/foo $rename_dir/bar; then
+    rm -f $rename_dir/foo $rename_dir/bar; rmdir $rename_dir
+    _notrun "fs doesn't support RENAME_NOREPLACE"
+fi
+rm -f $rename_dir/foo $rename_dir/bar
+
+# real QA test starts here
+
+_rename_tests $rename_dir -n
+rmdir $rename_dir
+
+# success, all done
+status=0
+exit

tests/generic/024.out

@@ -0,0 +1,51 @@
+QA output created by 324
+samedir  none/none -> No such file or directory
+samedir  none/regu -> No such file or directory
+samedir  none/symb -> No such file or directory
+samedir  none/dire -> No such file or directory
+samedir  none/tree -> No such file or directory
+samedir  regu/none -> none/regu.
+samedir  regu/regu -> File exists
+samedir  regu/symb -> File exists
+samedir  regu/dire -> File exists
+samedir  regu/tree -> File exists
+samedir  symb/none -> none/symb.
+samedir  symb/regu -> File exists
+samedir  symb/symb -> File exists
+samedir  symb/dire -> File exists
+samedir  symb/tree -> File exists
+samedir  dire/none -> none/dire.
+samedir  dire/regu -> File exists
+samedir  dire/symb -> File exists
+samedir  dire/dire -> File exists
+samedir  dire/tree -> File exists
+samedir  tree/none -> none/tree.
+samedir  tree/regu -> File exists
+samedir  tree/symb -> File exists
+samedir  tree/dire -> File exists
+samedir  tree/tree -> File exists
+crossdir none/none -> No such file or directory
+crossdir none/regu -> No such file or directory
+crossdir none/symb -> No such file or directory
+crossdir none/dire -> No such file or directory
+crossdir none/tree -> No such file or directory
+crossdir regu/none -> none/regu.
+crossdir regu/regu -> File exists
+crossdir regu/symb -> File exists
+crossdir regu/dire -> File exists
+crossdir regu/tree -> File exists
+crossdir symb/none -> none/symb.
+crossdir symb/regu -> File exists
+crossdir symb/symb -> File exists
+crossdir symb/dire -> File exists
+crossdir symb/tree -> File exists
+crossdir dire/none -> none/dire.
+crossdir dire/regu -> File exists
+crossdir dire/symb -> File exists
+crossdir dire/dire -> File exists
+crossdir dire/tree -> File exists
+crossdir tree/none -> none/tree.
+crossdir tree/regu -> File exists
+crossdir tree/symb -> File exists
+crossdir tree/dire -> File exists
+crossdir tree/tree -> File exists

tests/generic/group

@@ -26,6 +26,7 @@
 021 auto quick prealloc
 022 auto quick prealloc
 023 auto quick
+024 auto quick
 053 acl repair auto quick
 062 attr udf auto quick
 068 other auto freeze dangerous stress