--- /dev/null
+#! /bin/bash
+# FS QA Test No. 238
+#
+# Check stale handles pointing to unlinked files are detected correctly
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2010 Red Hat, Inc. 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
+#-----------------------------------------------------------------------
+#
+# creator
+owner=dchinner@redhat.com
+
+seq=`basename $0`
+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.filter
+
+# real QA test starts here
+
+# Modify as appropriate.
+_supported_fs xfs
+_supported_os Linux
+_require_scratch
+
+echo "Silence is golden"
+
+_scratch_mkfs > /dev/null 2>&1
+_scratch_mount > /dev/null 2>&1
+src/stale_handle $SCRATCH_MNT
+status=$?
+exit
--- /dev/null
+/*
+ * stale_handle.c - attempt to create a stale handle and open it
+ *
+ * Copyright (C) 2010 Red Hat, Inc. 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will 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 to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#define TEST_UTIME
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <errno.h>
+#include <xfs/xfs.h>
+#include <xfs/handle.h>
+
+#define NUMFILES 1024
+int main(int argc, char **argv)
+{
+ int i;
+ int fd;
+ int ret;
+ int failed = 0;
+ char fname[MAXPATHLEN];
+ char *test_dir;
+ void *handle[NUMFILES];
+ size_t hlen[NUMFILES];
+ char fshandle[256];
+ size_t fshlen;
+ struct stat st;
+
+
+ if (argc != 2) {
+ fprintf(stderr, "usage: stale_handle test_dir\n");
+ return EXIT_FAILURE;
+ }
+
+ test_dir = argv[1];
+ if (stat(test_dir, &st) != 0) {
+ perror("stat");
+ return EXIT_FAILURE;
+ }
+
+ ret = path_to_fshandle(test_dir, (void **)fshandle, &fshlen);
+ if (ret < 0) {
+ perror("path_to_fshandle");
+ return EXIT_FAILURE;
+ }
+
+ /*
+ * create a large number of files to force allocation of new inode
+ * chunks on disk.
+ */
+ for (i=0; i < NUMFILES; i++) {
+ sprintf(fname, "%s/file%06d", test_dir, i);
+ fd = open(fname, O_RDWR | O_CREAT | O_TRUNC, 0644);
+ if (fd < 0) {
+ printf("Warning (%s,%d), open(%s) failed.\n", __FILE__, __LINE__, fname);
+ perror(fname);
+ return EXIT_FAILURE;
+ }
+ close(fd);
+ }
+
+ /* sync to get the new inodes to hit the disk */
+ sync();
+
+ /* create the handles */
+ for (i=0; i < NUMFILES; i++) {
+ sprintf(fname, "%s/file%06d", test_dir, i);
+ ret = path_to_handle(fname, &handle[i], &hlen[i]);
+ if (ret < 0) {
+ perror("path_to_handle");
+ return EXIT_FAILURE;
+ }
+ }
+
+ /* unlink the files */
+ for (i=0; i < NUMFILES; i++) {
+ sprintf(fname, "%s/file%06d", test_dir, i);
+ ret = unlink(fname);
+ if (ret < 0) {
+ perror("unlink");
+ return EXIT_FAILURE;
+ }
+ }
+
+ /* sync to get log forced for unlink transactions to hit the disk */
+ sync();
+
+ /* sync once more FTW */
+ sync();
+
+ /*
+ * now drop the caches so that unlinked inodes are reclaimed and
+ * buftarg page cache is emptied so that the inode cluster has to be
+ * fetched from disk again for the open_by_handle() call.
+ */
+ system("echo 3 > /proc/sys/vm/drop_caches");
+
+ /*
+ * now try to open the files by the stored handles. Expecting ENOENT
+ * for all of them.
+ */
+ for (i=0; i < NUMFILES; i++) {
+ errno = 0;
+ fd = open_by_handle(handle[i], hlen[i], O_RDWR);
+ if (fd < 0 && (errno == ENOENT || errno == ESTALE)) {
+ free_handle(handle[i], hlen[i]);
+ continue;
+ }
+ if (fd >= 0) {
+ printf("open_by_handle(%d) opened an unlinked file!\n", i);
+ close(fd);
+ } else
+ printf("open_by_handle(%d) returned %d incorrectly on an unlinked file!\n", i, errno);
+ free_handle(handle[i], hlen[i]);
+ failed++;
+ }
+ if (failed)
+ return EXIT_FAILURE;
+ return EXIT_SUCCESS;
+}