LU-9551 utils: add l_tunedisk to fix disk tunings

[fs/lustre-release.git] / lustre / utils / l_tunedisk.c

diff --git a/lustre/utils/l_tunedisk.c b/lustre/utils/l_tunedisk.c
new file mode 100644 (file)
index 0000000..47d977b
--- /dev/null
+++ b/lustre/utils/l_tunedisk.c
@@ -0,0 +1,81 @@
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2018, Intel Corporation.
+ */
+
+
+#if HAVE_CONFIG_H
+#  include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "mount_utils.h"
+int    verbose;
+char   *progname;
+
+
+int main(int argc, char *const argv[])
+{
+       struct mount_opts mop = {
+               .mo_max_sectors_kb = -1
+       };
+       char real_path[PATH_MAX] = {'\0'};
+       unsigned int mount_type;
+       int ret;
+
+       verbose = 0;
+       progname = strrchr(argv[0], '/');
+       progname = progname ? progname + 1 : argv[0];
+
+       ret = osd_init();
+       if (ret != 0) {
+               vprint("%s: osd_init() failed to initialize: %d\n",
+                      progname, ret);
+               return ret;
+       }
+
+       /* device is last arg */
+       mop.mo_usource = argv[argc - 1];
+
+       mop.mo_source = realpath(mop.mo_usource, real_path);
+       if (mop.mo_source == NULL) {
+               vprint("%s: No realpath for %s\n", progname, mop.mo_usource);
+               goto out;
+       }
+
+       /* Check whether the disk has already been formatted by mkfs.lustre */
+       ret = osd_is_lustre(mop.mo_source, &mount_type);
+       if (ret == 0)
+               goto out;
+
+       ret = osd_tune_lustre(mop.mo_source, &mop);
+
+out:
+       osd_fini();
+       return ret;
+}