+# parameters: fail_loc CMD RC
+test_120_reply() {
+ local PID
+ local PID2
+ local rc=5
+ local fail
+
+ #define OBD_FAIL_LDLM_CP_CB_WAIT2 0x320
+ #define OBD_FAIL_LDLM_CP_CB_WAIT3 0x321
+ #define OBD_FAIL_LDLM_CP_CB_WAIT4 0x322
+ #define OBD_FAIL_LDLM_CP_CB_WAIT5 0x323
+
+ echo
+ echo -n "** FLOCK REPLY vs. EVICTION race, lock $2"
+ [ "$1" = "CLEANUP" ] &&
+ fail=0x80000320 && echo ", $1 cp first"
+ [ "$1" = "REPLY" ] &&
+ fail=0x80000321 && echo ", $1 cp first"
+ [ "$1" = "DEADLOCK CLEANUP" ] &&
+ fail=0x80000322 && echo " DEADLOCK, CLEANUP cp first"
+ [ "$1" = "DEADLOCK REPLY" ] &&
+ fail=0x80000323 && echo " DEADLOCK, REPLY cp first"
+
+ if [ x"$2" = x"get" ]; then
+ #for TEST lock, take a conflict in advance
+ # sleep longer than evictor to not confuse fail_loc: 2+2+4
+ echo "** Taking conflict **"
+ flocks_test 5 set read sleep 10 $DIR/$tfile &
+ PID2=$!
+
+ sleep 2
+ fi
+
+ $LCTL set_param fail_loc=$fail
+
+ flocks_test 5 $2 write $DIR/$tfile &
+ PID=$!
+
+ sleep 2
+ echo "** Evicting and re-connecting client **"
+ mds_evict_client
+
+ client_reconnect
+
+ if [ x"$2" = x"get" ]; then
+ wait $PID2
+ fi
+
+ wait $PID
+ rc=$?
+
+ # check if the return value is allowed
+ [ $rc -eq $3 ] && rc=0
+
+ $LCTL set_param fail_loc=0
+ return $rc
+}
+
+# a lock is taken, unlock vs. cleanup_resource() race for destroying
+# the ORIGINAL lock.
+test_120_destroy()
+{
+ local PID
+
+ flocks_test 5 set write sleep 4 $DIR/$tfile &
+ PID=$!
+ sleep 2
+
+ # let unlock to sleep in CP CB
+ $LCTL set_param fail_loc=$1
+ sleep 4
+
+ # let cleanup to cleep in CP CB
+ mds_evict_client
+
+ client_reconnect
+
+ wait $PID
+ rc=$?
+
+ $LCTL set_param fail_loc=0
+ return $rc
+}
+
+test_120() {
+ flock_is_enabled || { skip "mount w/o flock enabled" && return; }
+ touch $DIR/$tfile
+
+ test_120_reply "CLEANUP" set 5 || error "SET race failed"
+ test_120_reply "CLEANUP" get 5 || error "GET race failed"
+ test_120_reply "CLEANUP" unlock 5 || error "UNLOCK race failed"
+
+ test_120_reply "REPLY" set 5 || error "SET race failed"
+ test_120_reply "REPLY" get 5 || error "GET race failed"
+ test_120_reply "REPLY" unlock 5 || error "UNLOCK race failed"
+
+ # DEADLOCK tests
+ test_120_reply "DEADLOCK CLEANUP" set 5 || error "DEADLOCK race failed"
+ test_120_reply "DEADLOCK REPLY" set 35 || error "DEADLOCK race failed"
+
+ test_120_destroy 0x320 || error "unlock-cleanup race failed"
+}
+run_test 120 "flock race: completion vs. evict"
+
+test_113() {
+ local BEFORE=$(date +%s)
+ local EVICT
+
+ # modify dir so that next revalidate would not obtain UPDATE lock
+ touch $DIR
+
+ # drop 1 reply with UPDATE lock,
+ # resend should not create 2nd lock on server
+ mcreate $DIR/$tfile || error "mcreate failed: $?"
+ drop_ldlm_reply_once "stat $DIR/$tfile" || error "stat failed: $?"
+
+ # 2 BL AST will be sent to client, both must find the same lock,
+ # race them to not get EINVAL for 2nd BL AST
+ #define OBD_FAIL_LDLM_PAUSE_CANCEL2 0x31f
+ $LCTL set_param fail_loc=0x8000031f
+
+ $LCTL set_param ldlm.namespaces.*.early_lock_cancel=0 > /dev/null
+ chmod 0777 $DIR/$tfile || error "chmod failed: $?"
+ $LCTL set_param ldlm.namespaces.*.early_lock_cancel=1 > /dev/null
+
+ # let the client reconnect
+ client_reconnect
+ EVICT=$($LCTL get_param mdc.$FSNAME-MDT*.state |
+ awk -F"[ [,]" '/EVICTED ]$/ { if (mx<$5) {mx=$5;} } END { print mx }')
+
+ [ -z "$EVICT" ] || [[ $EVICT -le $BEFORE ]] || error "eviction happened"
+}
+run_test 113 "ldlm enqueue dropped reply should not cause deadlocks"
+