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authorEric Blake <eblake@redhat.com>2019-01-11 13:47:20 -0600
committerEric Blake <eblake@redhat.com>2019-01-14 10:09:46 -0600
commit636192c4b6052820ea126a5287c58a8f53f3c84f (patch)
treea84e1b6b8c3f06fd5db8e36aebcb8a0bb9e0bd86 /tests
parent678ba275c77b5b12f3bc9bb369a1b824fc9f679f (diff)
qemu-nbd: Add --bitmap=NAME option
Having to fire up qemu, then use QMP commands for nbd-server-start and nbd-server-add, just to expose a persistent dirty bitmap, is rather tedious. Make it possible to expose a dirty bitmap using just qemu-nbd (of course, for now this only works when qemu-nbd is visiting a BDS formatted as qcow2). Of course, any good feature also needs unit testing, so expand iotest 223 to cover it. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20190111194720.15671-9-eblake@redhat.com>
Diffstat (limited to 'tests')
-rwxr-xr-xtests/qemu-iotests/22318
-rw-r--r--tests/qemu-iotests/223.out12
2 files changed, 28 insertions, 2 deletions
diff --git a/tests/qemu-iotests/223 b/tests/qemu-iotests/223
index 0bcc98a867..773892dbe6 100755
--- a/tests/qemu-iotests/223
+++ b/tests/qemu-iotests/223
@@ -25,6 +25,7 @@ status=1 # failure is the default!
_cleanup()
{
+ nbd_server_stop
_cleanup_test_img
_cleanup_qemu
rm -f "$TEST_DIR/nbd"
@@ -35,6 +36,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
. ./common.rc
. ./common.filter
. ./common.qemu
+. ./common.nbd
_supported_fmt qcow2
_supported_proto file # uses NBD as well
@@ -163,7 +165,7 @@ $QEMU_IMG map --output=json --image-opts \
"$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b2" | _filter_qemu_img_map
echo
-echo "=== End NBD server ==="
+echo "=== End qemu NBD server ==="
echo
_send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-remove",
@@ -176,6 +178,20 @@ _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-stop"}' "return"
_send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-stop"}' "error" # Again
_send_qemu_cmd $QEMU_HANDLE '{"execute":"quit"}' "return"
+echo
+echo "=== Use qemu-nbd as server ==="
+echo
+
+nbd_server_start_unix_socket -r -f $IMGFMT -B b "$TEST_IMG"
+IMG="driver=nbd,server.type=unix,server.path=$nbd_unix_socket"
+$QEMU_IMG map --output=json --image-opts \
+ "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b" | _filter_qemu_img_map
+
+nbd_server_start_unix_socket -f $IMGFMT -B b2 "$TEST_IMG"
+IMG="driver=nbd,server.type=unix,server.path=$nbd_unix_socket"
+$QEMU_IMG map --output=json --image-opts \
+ "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b2" | _filter_qemu_img_map
+
# success, all done
echo '*** done'
rm -f $seq.full
diff --git a/tests/qemu-iotests/223.out b/tests/qemu-iotests/223.out
index ebd3935c97..0de5240a75 100644
--- a/tests/qemu-iotests/223.out
+++ b/tests/qemu-iotests/223.out
@@ -61,7 +61,7 @@ read 2097152/2097152 bytes at offset 2097152
{ "start": 1024, "length": 2096128, "depth": 0, "zero": false, "data": true},
{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}]
-=== End NBD server ===
+=== End qemu NBD server ===
{"return": {}}
{"return": {}}
@@ -69,4 +69,14 @@ read 2097152/2097152 bytes at offset 2097152
{"return": {}}
{"error": {"class": "GenericError", "desc": "NBD server not running"}}
{"return": {}}
+
+=== Use qemu-nbd as server ===
+
+[{ "start": 0, "length": 65536, "depth": 0, "zero": false, "data": false},
+{ "start": 65536, "length": 2031616, "depth": 0, "zero": false, "data": true},
+{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}]
+[{ "start": 0, "length": 512, "depth": 0, "zero": false, "data": true},
+{ "start": 512, "length": 512, "depth": 0, "zero": false, "data": false},
+{ "start": 1024, "length": 2096128, "depth": 0, "zero": false, "data": true},
+{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}]
*** done