tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#!/bin/bash
2# please run as root
3
4#
5# Normal tests requiring no special resources
6#
7./run_fuse_test.sh
8./memfd_test
9
10#
11# To test memfd_create with hugetlbfs, there needs to be hpages_test
12# huge pages free. Attempt to allocate enough pages to test.
13#
14hpages_test=8
15
16#
17# Get count of free huge pages from /proc/meminfo
18#
19while read name size unit; do
20 if [ "$name" = "HugePages_Free:" ]; then
21 freepgs=$size
22 fi
23done < /proc/meminfo
24
25#
26# If not enough free huge pages for test, attempt to increase
27#
28if [ -n "$freepgs" ] && [ $freepgs -lt $hpages_test ]; then
29 nr_hugepgs=`cat /proc/sys/vm/nr_hugepages`
30 hpages_needed=`expr $hpages_test - $freepgs`
31
32 echo 3 > /proc/sys/vm/drop_caches
33 echo $(( $hpages_needed + $nr_hugepgs )) > /proc/sys/vm/nr_hugepages
34 if [ $? -ne 0 ]; then
35 echo "Please run this test as root"
36 exit 1
37 fi
38 while read name size unit; do
39 if [ "$name" = "HugePages_Free:" ]; then
40 freepgs=$size
41 fi
42 done < /proc/meminfo
43fi
44
45#
46# If still not enough huge pages available, exit. But, give back any huge
47# pages potentially allocated above.
48#
49if [ $freepgs -lt $hpages_test ]; then
50 # nr_hugepgs non-zero only if we attempted to increase
51 if [ -n "$nr_hugepgs" ]; then
52 echo $nr_hugepgs > /proc/sys/vm/nr_hugepages
53 fi
54 printf "Not enough huge pages available (%d < %d)\n" \
55 $freepgs $needpgs
56 exit 1
57fi
58
59#
60# Run the hugetlbfs test
61#
62./memfd_test hugetlbfs
63./run_fuse_test.sh hugetlbfs
64
65#
66# Give back any huge pages allocated for the test
67#
68if [ -n "$nr_hugepgs" ]; then
69 echo $nr_hugepgs > /proc/sys/vm/nr_hugepages
70fi