Add T_MODULE for tests

Signed-off-by: Zach Brown <zab@versity.com>

tests/README.md

@@ -112,6 +112,7 @@ used during the test.
 | T\_EX\_META\_DEV | scratch meta bdev    | -f              | /dev/vdd          |
 | T\_EX\_DATA\_DEV | scratch meta bdev    | -e              | /dev/vdc          |
 | T\_M[0-9]        | mount paths          | mounted per run | /mnt/test.[0-9]/  |
+| T\_MODULE        | built kernel module  | created per run | ../kmod/src/..ko  |
 | T\_NR\_MOUNTS    | number of mounts     | -n              | 3                 |
 | T\_O[0-9]        | mount options        | created per run | -o server\_addr=  |
 | T\_QUORUM        | quorum count         | -q              | 2                 |

tests/run-tests.sh

@@ -342,7 +342,8 @@ if [ -n "$T_INSMOD" ]; then
 	msg "removing and reinserting scoutfs module"
 	test -e /sys/module/scoutfs && cmd rmmod scoutfs
 	cmd modprobe libcrc32c
-	cmd insmod "$T_KMOD/src/scoutfs.ko"
+	T_MODULE="$T_KMOD/src/scoutfs.ko"
+	cmd insmod "$T_MODULE"
 fi
 
 nr_globs=${#T_TRACE_GLOB[@]}