* [GIT PULL] Kselftest updates from 4.5-rc1
@ 2016-01-15 20:34 Shuah Khan
0 siblings, 0 replies; only message in thread
From: Shuah Khan @ 2016-01-15 20:34 UTC (permalink / raw)
To: Linus Torvalds
Cc: linux-kernel, open list:KERNEL SELFTEST F..., Shuah Khan, shuahkhan
[-- Attachment #1: Type: text/plain, Size: 3270 bytes --]
Hi Linus,
Please pull the following update for 4.5-rc1.
diff attached.
Thanks,
-- Shuah
-------------------------------------------------------------
The following changes since commit 8005c49d9aea74d382f474ce11afbbc7d7130bec:
Linux 4.4-rc1 (2015-11-15 17:00:27 -0800)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
tags/linux-kselftest-4.5-rc1
for you to fetch changes up to 1b1fe542b6f010cf6bc7e1c92805e1c0e133e007:
selftests: firmware: add empty string and async tests (2016-01-07
14:41:07 -0700)
----------------------------------------------------------------
linux-kselftest-4.5-rc1
This 14 patch update:
- adds a new test for intel_pstate driver
- adds empty string and async test cases to
firmware class tests
- fixes and cleans up several existing tests
----------------------------------------------------------------
Bamvor Jian Zhang (3):
selftests/capabilities: clean up for Makefile
selftests/capabilities: actually test it
selftest/ipc: actually test it
Brian Norris (5):
test: firmware_class: report errors properly on failure
test: firmware_class: use kstrndup() where appropriate
test: firmware_class: add asynchronous request trigger
firmware: actually return NULL on failed request_firmware_nowait()
selftests: firmware: add empty string and async tests
Kees Cook (1):
selftests/seccomp: fix 32-bit build warnings
Prarit Bhargava (1):
tools, testing, add test for intel_pstate driver
Yuan Sun (4):
update .gitignore in selftests/vm
update .gitignore in selftests/timers
add ptrace/.gitignore
add breakpoints/.gitignore
drivers/base/firmware_class.c | 8 +-
lib/test_firmware.c | 79 ++++++++++++++-
tools/testing/selftests/Makefile | 2 +
tools/testing/selftests/breakpoints/.gitignore | 1 +
tools/testing/selftests/capabilities/Makefile | 21 ++--
tools/testing/selftests/firmware/fw_filesystem.sh | 29 +++++-
tools/testing/selftests/intel_pstate/Makefile | 15 +++
tools/testing/selftests/intel_pstate/aperf.c | 80 +++++++++++++++
tools/testing/selftests/intel_pstate/msr.c | 39 ++++++++
tools/testing/selftests/intel_pstate/run.sh | 113
++++++++++++++++++++++
tools/testing/selftests/ptrace/.gitignore | 1 +
tools/testing/selftests/seccomp/test_harness.h | 5 +-
tools/testing/selftests/timers/.gitignore | 1 +
tools/testing/selftests/vm/.gitignore | 5 +
14 files changed, 376 insertions(+), 23 deletions(-)
create mode 100644 tools/testing/selftests/breakpoints/.gitignore
create mode 100644 tools/testing/selftests/intel_pstate/Makefile
create mode 100644 tools/testing/selftests/intel_pstate/aperf.c
create mode 100644 tools/testing/selftests/intel_pstate/msr.c
create mode 100755 tools/testing/selftests/intel_pstate/run.sh
create mode 100644 tools/testing/selftests/ptrace/.gitignore
--------------------------------------------------------------------
--
Shuah Khan
Sr. Linux Kernel Developer
Open Source Innovation Group
Samsung Research America (Silicon Valley)
shuahkh@osg.samsung.com | (970) 217-8978
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[-- Attachment #2: 4.5-rc1_pull_req.diff --]
[-- Type: text/x-diff; name="4.5-rc1_pull_req.diff", Size: 16791 bytes --]
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 8524450..b9250e5 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -1118,15 +1118,17 @@ static int
_request_firmware(const struct firmware **firmware_p, const char *name,
struct device *device, unsigned int opt_flags)
{
- struct firmware *fw;
+ struct firmware *fw = NULL;
long timeout;
int ret;
if (!firmware_p)
return -EINVAL;
- if (!name || name[0] == '\0')
- return -EINVAL;
+ if (!name || name[0] == '\0') {
+ ret = -EINVAL;
+ goto out;
+ }
ret = _request_firmware_prepare(&fw, name, device);
if (ret <= 0) /* error or already assigned */
diff --git a/lib/test_firmware.c b/lib/test_firmware.c
index 86374c1..a3e8ec3 100644
--- a/lib/test_firmware.c
+++ b/lib/test_firmware.c
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/printk.h>
+#include <linux/completion.h>
#include <linux/firmware.h>
#include <linux/device.h>
#include <linux/fs.h>
@@ -54,10 +55,9 @@ static ssize_t trigger_request_store(struct device *dev,
int rc;
char *name;
- name = kzalloc(count + 1, GFP_KERNEL);
+ name = kstrndup(buf, count, GFP_KERNEL);
if (!name)
return -ENOSPC;
- memcpy(name, buf, count);
pr_info("loading '%s'\n", name);
@@ -65,17 +65,73 @@ static ssize_t trigger_request_store(struct device *dev,
release_firmware(test_firmware);
test_firmware = NULL;
rc = request_firmware(&test_firmware, name, dev);
- if (rc)
+ if (rc) {
pr_info("load of '%s' failed: %d\n", name, rc);
- pr_info("loaded: %zu\n", test_firmware ? test_firmware->size : 0);
+ goto out;
+ }
+ pr_info("loaded: %zu\n", test_firmware->size);
+ rc = count;
+
+out:
mutex_unlock(&test_fw_mutex);
kfree(name);
- return count;
+ return rc;
}
static DEVICE_ATTR_WO(trigger_request);
+static DECLARE_COMPLETION(async_fw_done);
+
+static void trigger_async_request_cb(const struct firmware *fw, void *context)
+{
+ test_firmware = fw;
+ complete(&async_fw_done);
+}
+
+static ssize_t trigger_async_request_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int rc;
+ char *name;
+
+ name = kstrndup(buf, count, GFP_KERNEL);
+ if (!name)
+ return -ENOSPC;
+
+ pr_info("loading '%s'\n", name);
+
+ mutex_lock(&test_fw_mutex);
+ release_firmware(test_firmware);
+ test_firmware = NULL;
+ rc = request_firmware_nowait(THIS_MODULE, 1, name, dev, GFP_KERNEL,
+ NULL, trigger_async_request_cb);
+ if (rc) {
+ pr_info("async load of '%s' failed: %d\n", name, rc);
+ kfree(name);
+ goto out;
+ }
+ /* Free 'name' ASAP, to test for race conditions */
+ kfree(name);
+
+ wait_for_completion(&async_fw_done);
+
+ if (test_firmware) {
+ pr_info("loaded: %zu\n", test_firmware->size);
+ rc = count;
+ } else {
+ pr_err("failed to async load firmware\n");
+ rc = -ENODEV;
+ }
+
+out:
+ mutex_unlock(&test_fw_mutex);
+
+ return rc;
+}
+static DEVICE_ATTR_WO(trigger_async_request);
+
static int __init test_firmware_init(void)
{
int rc;
@@ -92,9 +148,20 @@ static int __init test_firmware_init(void)
goto dereg;
}
+ rc = device_create_file(test_fw_misc_device.this_device,
+ &dev_attr_trigger_async_request);
+ if (rc) {
+ pr_err("could not create async sysfs interface: %d\n", rc);
+ goto remove_file;
+ }
+
pr_warn("interface ready\n");
return 0;
+
+remove_file:
+ device_remove_file(test_fw_misc_device.this_device,
+ &dev_attr_trigger_async_request);
dereg:
misc_deregister(&test_fw_misc_device);
return rc;
@@ -106,6 +173,8 @@ static void __exit test_firmware_exit(void)
{
release_firmware(test_firmware);
device_remove_file(test_fw_misc_device.this_device,
+ &dev_attr_trigger_async_request);
+ device_remove_file(test_fw_misc_device.this_device,
&dev_attr_trigger_request);
misc_deregister(&test_fw_misc_device);
pr_warn("removed interface\n");
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index c8edff6..b04afc3 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -1,10 +1,12 @@
TARGETS = breakpoints
+TARGETS += capabilities
TARGETS += cpu-hotplug
TARGETS += efivarfs
TARGETS += exec
TARGETS += firmware
TARGETS += ftrace
TARGETS += futex
+TARGETS += ipc
TARGETS += kcmp
TARGETS += lib
TARGETS += membarrier
diff --git a/tools/testing/selftests/breakpoints/.gitignore b/tools/testing/selftests/breakpoints/.gitignore
new file mode 100644
index 0000000..9b3193d0
--- /dev/null
+++ b/tools/testing/selftests/breakpoints/.gitignore
@@ -0,0 +1 @@
+breakpoint_test
diff --git a/tools/testing/selftests/capabilities/Makefile b/tools/testing/selftests/capabilities/Makefile
index 8c8f0c1..008602a 100644
--- a/tools/testing/selftests/capabilities/Makefile
+++ b/tools/testing/selftests/capabilities/Makefile
@@ -1,18 +1,15 @@
-all:
-
-include ../lib.mk
-
-.PHONY: all clean
-
-TARGETS := validate_cap test_execve
+TEST_FILES := validate_cap
TEST_PROGS := test_execve
-CFLAGS := -O2 -g -std=gnu99 -Wall -lcap-ng
+BINARIES := $(TEST_FILES) $(TEST_PROGS)
-all: $(TARGETS)
+CFLAGS += -O2 -g -std=gnu99 -Wall
+LDLIBS += -lcap-ng -lrt -ldl
+
+all: $(BINARIES)
clean:
- $(RM) $(TARGETS)
+ $(RM) $(BINARIES)
+
+include ../lib.mk
-$(TARGETS): %: %.c
- $(CC) -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh
index c4366dc..5c495ad 100755
--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -48,8 +48,21 @@ echo "ABCD0123" >"$FW"
NAME=$(basename "$FW")
+if printf '\000' >"$DIR"/trigger_request; then
+ echo "$0: empty filename should not succeed" >&2
+ exit 1
+fi
+
+if printf '\000' >"$DIR"/trigger_async_request; then
+ echo "$0: empty filename should not succeed (async)" >&2
+ exit 1
+fi
+
# Request a firmware that doesn't exist, it should fail.
-echo -n "nope-$NAME" >"$DIR"/trigger_request
+if echo -n "nope-$NAME" >"$DIR"/trigger_request; then
+ echo "$0: firmware shouldn't have loaded" >&2
+ exit 1
+fi
if diff -q "$FW" /dev/test_firmware >/dev/null ; then
echo "$0: firmware was not expected to match" >&2
exit 1
@@ -74,4 +87,18 @@ else
echo "$0: filesystem loading works"
fi
+# Try the asynchronous version too
+if ! echo -n "$NAME" >"$DIR"/trigger_async_request ; then
+ echo "$0: could not trigger async request" >&2
+ exit 1
+fi
+
+# Verify the contents are what we expect.
+if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
+ echo "$0: firmware was not loaded (async)" >&2
+ exit 1
+else
+ echo "$0: async filesystem loading works"
+fi
+
exit 0
diff --git a/tools/testing/selftests/intel_pstate/Makefile b/tools/testing/selftests/intel_pstate/Makefile
new file mode 100644
index 0000000..f5f1a28
--- /dev/null
+++ b/tools/testing/selftests/intel_pstate/Makefile
@@ -0,0 +1,15 @@
+CC := $(CROSS_COMPILE)gcc
+CFLAGS := $(CFLAGS) -Wall -D_GNU_SOURCE
+LDFLAGS := $(LDFLAGS) -lm
+
+TARGETS := msr aperf
+
+TEST_PROGS := $(TARGETS) run.sh
+
+.PHONY: all clean
+all: $(TARGETS)
+
+$(TARGETS): $(HEADERS)
+
+clean:
+ rm -f $(TARGETS)
diff --git a/tools/testing/selftests/intel_pstate/aperf.c b/tools/testing/selftests/intel_pstate/aperf.c
new file mode 100644
index 0000000..6046e18
--- /dev/null
+++ b/tools/testing/selftests/intel_pstate/aperf.c
@@ -0,0 +1,80 @@
+#include <math.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/timeb.h>
+#include <sched.h>
+#include <errno.h>
+
+void usage(char *name) {
+ printf ("Usage: %s cpunum\n", name);
+}
+
+int main(int argc, char **argv) {
+ int i, cpu, fd;
+ char msr_file_name[64];
+ long long tsc, old_tsc, new_tsc;
+ long long aperf, old_aperf, new_aperf;
+ long long mperf, old_mperf, new_mperf;
+ struct timeb before, after;
+ long long int start, finish, total;
+ cpu_set_t cpuset;
+
+ if (argc != 2) {
+ usage(argv[0]);
+ return 1;
+ }
+
+ errno = 0;
+ cpu = strtol(argv[1], (char **) NULL, 10);
+
+ if (errno) {
+ usage(argv[0]);
+ return 1;
+ }
+
+ sprintf(msr_file_name, "/dev/cpu/%d/msr", cpu);
+ fd = open(msr_file_name, O_RDONLY);
+
+ if (fd == -1) {
+ perror("Failed to open");
+ return 1;
+ }
+
+ CPU_ZERO(&cpuset);
+ CPU_SET(cpu, &cpuset);
+
+ if (sched_setaffinity(0, sizeof(cpu_set_t), &cpuset)) {
+ perror("Failed to set cpu affinity");
+ return 1;
+ }
+
+ ftime(&before);
+ pread(fd, &old_tsc, sizeof(old_tsc), 0x10);
+ pread(fd, &old_aperf, sizeof(old_mperf), 0xe7);
+ pread(fd, &old_mperf, sizeof(old_aperf), 0xe8);
+
+ for (i=0; i<0x8fffffff; i++) {
+ sqrt(i);
+ }
+
+ ftime(&after);
+ pread(fd, &new_tsc, sizeof(new_tsc), 0x10);
+ pread(fd, &new_aperf, sizeof(new_mperf), 0xe7);
+ pread(fd, &new_mperf, sizeof(new_aperf), 0xe8);
+
+ tsc = new_tsc-old_tsc;
+ aperf = new_aperf-old_aperf;
+ mperf = new_mperf-old_mperf;
+
+ start = before.time*1000 + before.millitm;
+ finish = after.time*1000 + after.millitm;
+ total = finish - start;
+
+ printf("runTime: %4.2f\n", 1.0*total/1000);
+ printf("freq: %7.0f\n", tsc / (1.0*aperf / (1.0 * mperf)) / total);
+ return 0;
+}
diff --git a/tools/testing/selftests/intel_pstate/msr.c b/tools/testing/selftests/intel_pstate/msr.c
new file mode 100644
index 0000000..abbbfc8
--- /dev/null
+++ b/tools/testing/selftests/intel_pstate/msr.c
@@ -0,0 +1,39 @@
+#include <math.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/timeb.h>
+#include <sched.h>
+#include <errno.h>
+
+
+int main(int argc, char **argv) {
+ int cpu, fd;
+ long long msr;
+ char msr_file_name[64];
+
+ if (argc != 2)
+ return 1;
+
+ errno = 0;
+ cpu = strtol(argv[1], (char **) NULL, 10);
+
+ if (errno)
+ return 1;
+
+ sprintf(msr_file_name, "/dev/cpu/%d/msr", cpu);
+ fd = open(msr_file_name, O_RDONLY);
+
+ if (fd == -1) {
+ perror("Failed to open");
+ return 1;
+ }
+
+ pread(fd, &msr, sizeof(msr), 0x199);
+
+ printf("msr 0x199: 0x%llx\n", msr);
+ return 0;
+}
diff --git a/tools/testing/selftests/intel_pstate/run.sh b/tools/testing/selftests/intel_pstate/run.sh
new file mode 100755
index 0000000..bdaf37e
--- /dev/null
+++ b/tools/testing/selftests/intel_pstate/run.sh
@@ -0,0 +1,113 @@
+#!/bin/bash
+#
+# This test runs on Intel x86 based hardware which support the intel_pstate
+# driver. The test checks the frequency settings from the maximum turbo
+# state to the minimum supported frequency, in decrements of 100MHz. The
+# test runs the aperf.c program to put load on each processor.
+#
+# The results are displayed in a table which indicate the "Target" state,
+# or the requested frequency in MHz, the Actual frequency, as read from
+# /proc/cpuinfo, the difference between the Target and Actual frequencies,
+# and the value of MSR 0x199 (MSR_IA32_PERF_CTL) which indicates what
+# pstate the cpu is in, and the value of
+# /sys/devices/system/cpu/intel_pstate/max_perf_pct X maximum turbo state
+#
+# Notes: In some cases several frequency values may be placed in the
+# /tmp/result.X files. This is done on purpose in order to catch cases
+# where the pstate driver may not be working at all. There is the case
+# where, for example, several "similar" frequencies are in the file:
+#
+#
+#/tmp/result.3100:1:cpu MHz : 2899.980
+#/tmp/result.3100:2:cpu MHz : 2900.000
+#/tmp/result.3100:3:msr 0x199: 0x1e00
+#/tmp/result.3100:4:max_perf_pct 94
+#
+# and the test will error out in those cases. The result.X file can be checked
+# for consistency and modified to remove the extra MHz values. The result.X
+# files can be re-evaluated by setting EVALUATE_ONLY to 1 below.
+
+EVALUATE_ONLY=0
+
+max_cpus=$(($(nproc)-1))
+
+# compile programs
+gcc -o aperf aperf.c -lm
+[ $? -ne 0 ] && echo "Problem compiling aperf.c." && exit 1
+gcc -o msr msr.c -lm
+[ $? -ne 0 ] && echo "Problem compiling msr.c." && exit 1
+
+function run_test () {
+
+ file_ext=$1
+ for cpu in `seq 0 $max_cpus`
+ do
+ echo "launching aperf load on $cpu"
+ ./aperf $cpu &
+ done
+
+ echo "sleeping for 5 seconds"
+ sleep 5
+ num_freqs=$(cat /proc/cpuinfo | grep MHz | sort -u | wc -l)
+ if [ $num_freqs -le 2 ]; then
+ cat /proc/cpuinfo | grep MHz | sort -u | tail -1 > /tmp/result.$1
+ else
+ cat /proc/cpuinfo | grep MHz | sort -u > /tmp/result.$1
+ fi
+ ./msr 0 >> /tmp/result.$1
+
+ max_perf_pct=$(cat /sys/devices/system/cpu/intel_pstate/max_perf_pct)
+ echo "max_perf_pct $max_perf_pct" >> /tmp/result.$1
+
+ for job in `jobs -p`
+ do
+ echo "waiting for job id $job"
+ wait $job
+ done
+}
+
+#
+# MAIN (ALL UNITS IN MHZ)
+#
+
+# Get the marketing frequency
+_mkt_freq=$(cat /proc/cpuinfo | grep -m 1 "model name" | awk '{print $NF}')
+_mkt_freq=$(echo $_mkt_freq | tr -d [:alpha:][:punct:])
+mkt_freq=${_mkt_freq}0
+
+# Get the ranges from cpupower
+_min_freq=$(cpupower frequency-info -l | tail -1 | awk ' { print $1 } ')
+min_freq=$(($_min_freq / 1000))
+_max_freq=$(cpupower frequency-info -l | tail -1 | awk ' { print $2 } ')
+max_freq=$(($_max_freq / 1000))
+
+
+for freq in `seq $max_freq -100 $min_freq`
+do
+ echo "Setting maximum frequency to $freq"
+ cpupower frequency-set -g powersave --max=${freq}MHz >& /dev/null
+ [ $EVALUATE_ONLY -eq 0 ] && run_test $freq
+done
+
+echo "=============================================================================="
+
+echo "The marketing frequency of the cpu is $mkt_freq MHz"
+echo "The maximum frequency of the cpu is $max_freq MHz"
+echo "The minimum frequency of the cpu is $min_freq MHz"
+
+cpupower frequency-set -g powersave --max=${max_freq}MHz >& /dev/null
+
+# make a pretty table
+echo "Target Actual Difference MSR(0x199) max_perf_pct"
+for freq in `seq $max_freq -100 $min_freq`
+do
+ result_freq=$(cat /tmp/result.${freq} | grep "cpu MHz" | awk ' { print $4 } ' | awk -F "." ' { print $1 } ')
+ msr=$(cat /tmp/result.${freq} | grep "msr" | awk ' { print $3 } ')
+ max_perf_pct=$(cat /tmp/result.${freq} | grep "max_perf_pct" | awk ' { print $2 } ' )
+ if [ $result_freq -eq $freq ]; then
+ echo " $freq $result_freq 0 $msr $(($max_perf_pct*3300))"
+ else
+ echo " $freq $result_freq $(($result_freq-$freq)) $msr $(($max_perf_pct*$max_freq))"
+ fi
+done
+exit 0
diff --git a/tools/testing/selftests/ptrace/.gitignore b/tools/testing/selftests/ptrace/.gitignore
new file mode 100644
index 0000000..b3e59d4
--- /dev/null
+++ b/tools/testing/selftests/ptrace/.gitignore
@@ -0,0 +1 @@
+peeksiginfo
diff --git a/tools/testing/selftests/seccomp/test_harness.h b/tools/testing/selftests/seccomp/test_harness.h
index fb28416..a786c69 100644
--- a/tools/testing/selftests/seccomp/test_harness.h
+++ b/tools/testing/selftests/seccomp/test_harness.h
@@ -42,6 +42,7 @@
#define TEST_HARNESS_H_
#define _GNU_SOURCE
+#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -370,8 +371,8 @@
__typeof__(_expected) __exp = (_expected); \
__typeof__(_seen) __seen = (_seen); \
if (!(__exp _t __seen)) { \
- unsigned long long __exp_print = (unsigned long long)__exp; \
- unsigned long long __seen_print = (unsigned long long)__seen; \
+ unsigned long long __exp_print = (uintptr_t)__exp; \
+ unsigned long long __seen_print = (uintptr_t)__seen; \
__TH_LOG("Expected %s (%llu) %s %s (%llu)", \
#_expected, __exp_print, #_t, \
#_seen, __seen_print); \
diff --git a/tools/testing/selftests/timers/.gitignore b/tools/testing/selftests/timers/.gitignore
index ced9981..68f3fc7 100644
--- a/tools/testing/selftests/timers/.gitignore
+++ b/tools/testing/selftests/timers/.gitignore
@@ -16,3 +16,4 @@ set-timer-lat
skew_consistency
threadtest
valid-adjtimex
+adjtick
diff --git a/tools/testing/selftests/vm/.gitignore b/tools/testing/selftests/vm/.gitignore
index ff1bb16..a937a9d 100644
--- a/tools/testing/selftests/vm/.gitignore
+++ b/tools/testing/selftests/vm/.gitignore
@@ -2,3 +2,8 @@ hugepage-mmap
hugepage-shm
map_hugetlb
thuge-gen
+compaction_test
+mlock2-tests
+on-fault-limit
+transhuge-stress
+userfaultfd
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2016-01-15 20:34 [GIT PULL] Kselftest updates from 4.5-rc1 Shuah Khan
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