TMP

tests/bcachefs/tier.ktest

@@ -288,4 +288,39 @@ test_change_replicas()
     check_counters ${ktest_scratch_dev[0]}
 }
 
+test_concurrent_removal()
+{
+    set_watchdog 60
+
+    run_quiet "" bcachefs format \
+       --label=ssd.ssd1 ${ktest_scratch_dev[0]}                \
+       --label=ssd.ssd2 ${ktest_scratch_dev[1]}                \
+       --label=hdd.hdd1 ${ktest_scratch_dev[2]}                \
+       --label=hdd.hdd2 ${ktest_scratch_dev[3]}                \
+       --metadata_replicas=4 \
+       --data_replicas=4 \
+       --promote_target=ssd
+
+    mount -t bcachefs "${ktest_scratch_dev[0]}:${ktest_scratch_dev[1]}:${ktest_scratch_dev[2]}:${ktest_scratch_dev[3]}" /mnt
+
+    echo "DONE"
+    dd if=/dev/zero of=/mnt/foo bs=128M count=40 oflag=direct
+
+    for i in 1 2 3 4; do
+        cat /mnt/foo > /dev/null
+    done
+    bcachefs fs usage -h /mnt
+    bcachefs device remove ${ktest_scratch_dev[0]} &
+    bcachefs device remove ${ktest_scratch_dev[1]} &
+    bcachefs device remove ${ktest_scratch_dev[2]} &
+    bcachefs device remove ${ktest_scratch_dev[3]} &
+    wait
+    umount /mnt
+
+    bcachefs fsck -ny "${ktest_scratch_dev[0]}" "${ktest_scratch_dev[1]}" "${ktest_scratch_dev[2]}" "${ktest_scratch_dev[3]}"
+    mount -t bcachefs "${ktest_scratch_dev[0]}:${ktest_scratch_dev[1]}:${ktest_scratch_dev[2]}:${ktest_scratch_dev[3]}" /mnt
+    umount /mnt
+    check_counters ${ktest_scratch_dev[0]}
+}
+
 main $@