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| author | Kevin Wolf <kwolf@redhat.com> | 2019-05-24 10:41:34 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2019-06-04 15:22:22 +0200 |
| commit | 45e92a9011bff4f6660dae1e011083c5790d121b (patch) | |
| tree | 6ebb02a0a6f72535f95f9c356fdd2ec7224e34ae | |
| parent | 087ba459a222cb022ce79110eebef190b8ec854a (diff) | |
| download | qemu-45e92a9011bff4f6660dae1e011083c5790d121b.zip qemu-45e92a9011bff4f6660dae1e011083c5790d121b.tar.gz qemu-45e92a9011bff4f6660dae1e011083c5790d121b.tar.bz2 | |
nbd-server: Call blk_set_allow_aio_context_change()
The NBD server uses an AioContext notifier, so it can tolerate that its
BlockBackend is switched to a different AioContext. Before we start
actually calling bdrv_try_set_aio_context(), which checks for
consistency, outside of test cases, we need to make sure that the NBD
server actually allows this.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
| -rw-r--r-- | nbd/server.c | 1 | ||||
| -rwxr-xr-x | tests/qemu-iotests/240 | 21 | ||||
| -rw-r--r-- | tests/qemu-iotests/240.out | 13 |
3 files changed, 35 insertions, 0 deletions
diff --git a/nbd/server.c b/nbd/server.c index e21bd50..d137535 100644 --- a/nbd/server.c +++ b/nbd/server.c @@ -1491,6 +1491,7 @@ NBDExport *nbd_export_new(BlockDriverState *bs, uint64_t dev_offset, goto fail; } blk_set_enable_write_cache(blk, !writethrough); + blk_set_allow_aio_context_change(blk, true); exp->refcount = 1; QTAILQ_INIT(&exp->clients); diff --git a/tests/qemu-iotests/240 b/tests/qemu-iotests/240 index b4cf950..5be6b9c 100755 --- a/tests/qemu-iotests/240 +++ b/tests/qemu-iotests/240 @@ -27,6 +27,12 @@ echo "QA output created by $seq" status=1 # failure is the default! +_cleanup() +{ + rm -f "$TEST_DIR/nbd" +} +trap "_cleanup; exit \$status" 0 1 2 3 15 + # get standard environment, filters and checks . ./common.rc . ./common.filter @@ -122,6 +128,21 @@ run_qemu <<EOF { "execute": "quit"} EOF +echo +echo === Attach a SCSI disks using the same block device as a NBD server === +echo + +run_qemu <<EOF +{ "execute": "qmp_capabilities" } +{ "execute": "blockdev-add", "arguments": {"driver": "null-co", "node-name": "hd0", "read-only": true}} +{ "execute": "nbd-server-start", "arguments": {"addr":{"type":"unix","data":{"path":"$TEST_DIR/nbd"}}}} +{ "execute": "nbd-server-add", "arguments": {"device":"hd0"}} +{ "execute": "object-add", "arguments": {"qom-type": "iothread", "id": "iothread0"}} +{ "execute": "device_add", "arguments": {"id": "scsi0", "driver": "${virtio_scsi}", "iothread": "iothread0"}} +{ "execute": "device_add", "arguments": {"id": "scsi-hd0", "driver": "scsi-hd", "drive": "hd0", "bus": "scsi0.0"}} +{ "execute": "quit"} +EOF + # success, all done echo "*** done" rm -f $seq.full diff --git a/tests/qemu-iotests/240.out b/tests/qemu-iotests/240.out index d763929..84e0a43 100644 --- a/tests/qemu-iotests/240.out +++ b/tests/qemu-iotests/240.out @@ -51,4 +51,17 @@ QMP_VERSION {"return": {}} {"return": {}} {"return": {}} + +=== Attach a SCSI disks using the same block device as a NBD server === + +Testing: +QMP_VERSION +{"return": {}} +{"return": {}} +{"return": {}} +{"return": {}} +{"return": {}} +{"return": {}} +{"return": {}} +{"return": {}} *** done |