LU-4198 clio: turn on lockless for some kind of IO

[fs/lustre-release.git] / lustre / tests / sanity.sh

diff --git a/lustre/tests/sanity.sh b/lustre/tests/sanity.sh
index aabbb6c..faa02a9 100755 (executable)
--- a/lustre/tests/sanity.sh
+++ b/lustre/tests/sanity.sh
@@ -20544,6 +20544,54 @@ test_319() {
 }
 run_test 319 "lost lease lock on migrate error"
 
+test_398a() { # LU-4198
+       $LFS setstripe -c 1 -i 0 $DIR/$tfile
+       $LCTL set_param ldlm.namespaces.*.lru_size=clear
+
+       # request a new lock on client
+       dd if=/dev/zero of=$DIR/$tfile bs=1M count=1
+
+       dd if=/dev/zero of=$DIR/$tfile bs=1M count=1 oflag=direct conv=notrunc
+       local lock_count=$($LCTL get_param -n \
+                          ldlm.namespaces.*-OST0000-osc-ffff*.lru_size)
+       [[ $lock_count -eq 0 ]] || error "lock should be cancelled by direct IO"
+
+       $LCTL set_param ldlm.namespaces.*-OST0000-osc-ffff*.lru_size=clear
+
+       # no lock cached, should use lockless IO and not enqueue new lock
+       dd if=/dev/zero of=$DIR/$tfile bs=1M count=1 oflag=direct conv=notrunc
+       lock_count=$($LCTL get_param -n \
+                    ldlm.namespaces.*-OST0000-osc-ffff*.lru_size)
+       [[ $lock_count -eq 0 ]] || error "no lock should be held by direct IO"
+}
+run_test 398a "direct IO should cancel lock otherwise lockless"
+
+test_398b() { # LU-4198
+       which fio || skip_env "no fio installed"
+       $LFS setstripe -c -1 $DIR/$tfile
+
+       local size=12
+       dd if=/dev/zero of=$DIR/$tfile bs=1M count=$size
+
+       local njobs=4
+       echo "mix direct rw ${size}M to OST0 by fio with $njobs jobs..."
+       fio --name=rand-rw --rw=randrw --bs=$PAGE_SIZE --direct=1 \
+               --numjobs=$njobs --fallocate=none \
+               --iodepth=16 --allow_file_create=0 --size=$((size/njobs))M \
+               --filename=$DIR/$tfile &
+       bg_pid=$!
+
+       echo "mix buffer rw ${size}M to OST0 by fio with $njobs jobs..."
+       fio --name=rand-rw --rw=randrw --bs=$PAGE_SIZE \
+               --numjobs=$njobs --fallocate=none \
+               --iodepth=16 --allow_file_create=0 --size=$((size/njobs))M \
+               --filename=$DIR/$tfile || true
+       wait $bg_pid
+
+       rm -rf $DIR/$tfile
+}
+run_test 398b "DIO and buffer IO race"
+
 test_fake_rw() {
        local read_write=$1
        if [ "$read_write" = "write" ]; then