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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-07 06:49:49 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-07 06:49:49 +0300 |
commit | d34fc1adf01ff87026da85fb972dc259dc347540 (patch) | |
tree | 27356073d423187157b7cdb69da32b53102fb9e7 /tools/testing/selftests/memfd/run_tests.sh | |
parent | 1c9fe4409ce3e9c78b1ed96ee8ed699d4f03bf33 (diff) | |
parent | d2cd9ede6e193dd7d88b6d27399e96229a551b19 (diff) | |
download | linux-d34fc1adf01ff87026da85fb972dc259dc347540.tar.xz |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton:
- various misc bits
- DAX updates
- OCFS2
- most of MM
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (119 commits)
mm,fork: introduce MADV_WIPEONFORK
x86,mpx: make mpx depend on x86-64 to free up VMA flag
mm: add /proc/pid/smaps_rollup
mm: hugetlb: clear target sub-page last when clearing huge page
mm: oom: let oom_reap_task and exit_mmap run concurrently
swap: choose swap device according to numa node
mm: replace TIF_MEMDIE checks by tsk_is_oom_victim
mm, oom: do not rely on TIF_MEMDIE for memory reserves access
z3fold: use per-cpu unbuddied lists
mm, swap: don't use VMA based swap readahead if HDD is used as swap
mm, swap: add sysfs interface for VMA based swap readahead
mm, swap: VMA based swap readahead
mm, swap: fix swap readahead marking
mm, swap: add swap readahead hit statistics
mm/vmalloc.c: don't reinvent the wheel but use existing llist API
mm/vmstat.c: fix wrong comment
selftests/memfd: add memfd_create hugetlbfs selftest
mm/shmem: add hugetlbfs support to memfd_create()
mm, devm_memremap_pages: use multi-order radix for ZONE_DEVICE lookups
mm/vmalloc.c: halve the number of comparisons performed in pcpu_get_vm_areas()
...
Diffstat (limited to 'tools/testing/selftests/memfd/run_tests.sh')
-rw-r--r-- | tools/testing/selftests/memfd/run_tests.sh | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/tools/testing/selftests/memfd/run_tests.sh b/tools/testing/selftests/memfd/run_tests.sh new file mode 100644 index 000000000000..daabb350697c --- /dev/null +++ b/tools/testing/selftests/memfd/run_tests.sh @@ -0,0 +1,69 @@ +#!/bin/bash +# please run as root + +# +# Normal tests requiring no special resources +# +./run_fuse_test.sh +./memfd_test + +# +# To test memfd_create with hugetlbfs, there needs to be hpages_test +# huge pages free. Attempt to allocate enough pages to test. +# +hpages_test=8 + +# +# Get count of free huge pages from /proc/meminfo +# +while read name size unit; do + if [ "$name" = "HugePages_Free:" ]; then + freepgs=$size + fi +done < /proc/meminfo + +# +# If not enough free huge pages for test, attempt to increase +# +if [ -n "$freepgs" ] && [ $freepgs -lt $hpages_test ]; then + nr_hugepgs=`cat /proc/sys/vm/nr_hugepages` + hpages_needed=`expr $hpages_test - $freepgs` + + echo 3 > /proc/sys/vm/drop_caches + echo $(( $hpages_needed + $nr_hugepgs )) > /proc/sys/vm/nr_hugepages + if [ $? -ne 0 ]; then + echo "Please run this test as root" + exit 1 + fi + while read name size unit; do + if [ "$name" = "HugePages_Free:" ]; then + freepgs=$size + fi + done < /proc/meminfo +fi + +# +# If still not enough huge pages available, exit. But, give back any huge +# pages potentially allocated above. +# +if [ $freepgs -lt $hpages_test ]; then + # nr_hugepgs non-zero only if we attempted to increase + if [ -n "$nr_hugepgs" ]; then + echo $nr_hugepgs > /proc/sys/vm/nr_hugepages + fi + printf "Not enough huge pages available (%d < %d)\n" \ + $freepgs $needpgs + exit 1 +fi + +# +# Run the hugetlbfs test +# +./memfd_test hugetlbfs + +# +# Give back any huge pages allocated for the test +# +if [ -n "$nr_hugepgs" ]; then + echo $nr_hugepgs > /proc/sys/vm/nr_hugepages +fi |