UBUNTU: SAUCE: (noup) Update spl to 0.6.5.9-1, zfs to 0.6.5.9-2

[mirror_ubuntu-bionic-kernel.git] / spl / module / splat / splat-time.c

diff --git a/spl/module/splat/splat-time.c b/spl/module/splat/splat-time.c
new file mode 100644 (file)
index 0000000..b4e94c8
--- /dev/null
+++ b/spl/module/splat/splat-time.c
@@ -0,0 +1,119 @@
+/*****************************************************************************\
+ *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
+ *  Copyright (C) 2007 The Regents of the University of California.
+ *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
+ *  UCRL-CODE-235197
+ *
+ *  This file is part of the SPL, Solaris Porting Layer.
+ *  For details, see <http://zfsonlinux.org/>.
+ *
+ *  The SPL 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.
+ *
+ *  The SPL 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 the SPL.  If not, see <http://www.gnu.org/licenses/>.
+ *****************************************************************************
+ *  Solaris Porting LAyer Tests (SPLAT) Time Tests.
+\*****************************************************************************/
+
+#include <sys/time.h>
+#include <linux/mm_compat.h>
+#include <linux/slab.h>
+#include "splat-internal.h"
+
+#define SPLAT_TIME_NAME                        "time"
+#define SPLAT_TIME_DESC                        "Kernel Time Tests"
+
+#define SPLAT_TIME_TEST1_ID            0x0801
+#define SPLAT_TIME_TEST1_NAME          "time1"
+#define SPLAT_TIME_TEST1_DESC          "HZ Test"
+
+#define SPLAT_TIME_TEST2_ID            0x0802
+#define SPLAT_TIME_TEST2_NAME          "time2"
+#define SPLAT_TIME_TEST2_DESC          "Monotonic Test"
+
+static int
+splat_time_test1(struct file *file, void *arg)
+{
+       int myhz = hz;
+       splat_vprint(file, SPLAT_TIME_TEST1_NAME, "hz is %d\n", myhz);
+        return 0;
+}
+
+static int
+splat_time_test2(struct file *file, void *arg)
+{
+        hrtime_t tm1, tm2;
+       int i;
+
+        tm1 = gethrtime();
+        splat_vprint(file, SPLAT_TIME_TEST2_NAME, "time is %lld\n", tm1);
+
+        for(i = 0; i < 100; i++) {
+                tm2 = gethrtime();
+                splat_vprint(file, SPLAT_TIME_TEST2_NAME, "time is %lld\n", tm2);
+
+                if(tm1 > tm2) {
+                        splat_print(file, "%s: gethrtime() is not giving "
+                                   "monotonically increasing values\n",
+                                   SPLAT_TIME_TEST2_NAME);
+                        return 1;
+                }
+                tm1 = tm2;
+
+                set_current_state(TASK_INTERRUPTIBLE);
+                schedule_timeout(10);
+        }
+
+        return 0;
+}
+
+splat_subsystem_t *
+splat_time_init(void)
+{
+        splat_subsystem_t *sub;
+
+        sub = kmalloc(sizeof(*sub), GFP_KERNEL);
+        if (sub == NULL)
+                return NULL;
+
+        memset(sub, 0, sizeof(*sub));
+        strncpy(sub->desc.name, SPLAT_TIME_NAME, SPLAT_NAME_SIZE);
+       strncpy(sub->desc.desc, SPLAT_TIME_DESC, SPLAT_DESC_SIZE);
+        INIT_LIST_HEAD(&sub->subsystem_list);
+       INIT_LIST_HEAD(&sub->test_list);
+        spin_lock_init(&sub->test_lock);
+        sub->desc.id = SPLAT_SUBSYSTEM_TIME;
+
+        SPLAT_TEST_INIT(sub, SPLAT_TIME_TEST1_NAME, SPLAT_TIME_TEST1_DESC,
+                     SPLAT_TIME_TEST1_ID, splat_time_test1);
+        SPLAT_TEST_INIT(sub, SPLAT_TIME_TEST2_NAME, SPLAT_TIME_TEST2_DESC,
+                     SPLAT_TIME_TEST2_ID, splat_time_test2);
+
+        return sub;
+}
+
+void
+splat_time_fini(splat_subsystem_t *sub)
+{
+        ASSERT(sub);
+
+        SPLAT_TEST_FINI(sub, SPLAT_TIME_TEST2_ID);
+        SPLAT_TEST_FINI(sub, SPLAT_TIME_TEST1_ID);
+
+        kfree(sub);
+}
+
+int
+splat_time_id(void)
+{
+        return SPLAT_SUBSYSTEM_TIME;
+}