Commit Graph

6 Commits

Author SHA1 Message Date
Maxim Levitsky
c6ac463631 iotests: rewrite iotest 240 in python
The recent changes that brought RCU delayed device deletion,
broke few tests and this test breakage went unnoticed.

Fix this test by rewriting it in python
(which allows to wait for DEVICE_DELETED events before continuing).

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20201104185025.434703-3-mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-11-09 15:44:21 +01:00
Kevin Wolf
4f71fb436a scsi-disk: Use qdev_prop_drive_iothread
This makes use of qdev_prop_drive_iothread for scsi-disk so that the
disk can be attached to a node that is already in the target AioContext.
We need to check that the HBA actually supports iothreads, otherwise
scsi-disk must make sure that the node is already in the main
AioContext.

This changes the error message for conflicting iothread settings.
Previously, virtio-scsi produced the error message, now it comes from
blk_set_aio_context(). Update a test case accordingly.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-06-04 15:22:22 +02:00
Kevin Wolf
45e92a9011 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>
2019-06-04 15:22:22 +02:00
Alberto Garcia
eb97813ff5 virtio-scsi: Forbid devices with different iothreads sharing a blockdev
This patch forbids attaching a disk to a SCSI device if its using a
different AioContext. Test case included.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-02-01 13:46:45 +01:00
Alberto Garcia
3ff35ba391 scsi-disk: Acquire the AioContext in scsi_*_realize()
This fixes a crash when attaching two disks with the same blockdev to
a SCSI device that is using iothreads. Test case included.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-02-01 13:46:45 +01:00
Alberto Garcia
a6f230c8d1 virtio-scsi: Move BlockBackend back to the main AioContext on unplug
This fixes a crash when attaching a disk to a SCSI device using
iothreads, then detaching it and reattaching it again. Test case
included.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-02-01 13:46:45 +01:00