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1831e15060
This update brings dataplane to virtio-scsi (NOT yet 100% thread-safe, though, which makes it really, really experimental. It also brings asynchronous cancellation to the SCSI subsystem and implements it in virtio-scsi. This is a pretty important feature. Almost all the work here was done by Fam Zheng. I also included the virtio refcount fixes from Gonglei, because they had a small conflict with virtio-scsi dataplane. This pull request is using the new subkey 4E6B09D7. # gpg: Signature made Tue 30 Sep 2014 12:31:02 BST using RSA key ID 4E6B09D7 # gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>" # gpg: aka "Paolo Bonzini <bonzini@gnu.org>" * remotes/bonzini/tags/for-upstream: (39 commits) block/iscsi: handle failure on malloc of the allocationmap util: introduce bitmap_try_new virtio-scsi: Handle TMF request cancellation asynchronously scsi: Introduce scsi_req_cancel_async scsi: Introduce scsi_req_cancel_complete scsi: Drop SCSIReqOps.cancel_io scsi: Unify request unref in scsi_req_cancel scsi-generic: Handle canceled request in scsi_command_complete scsi: Drop scsi_req_abort virtio-scsi: Process ".iothread" property virtio-scsi: Call bdrv_io_plug/bdrv_io_unplug in cmd request handling virtio-scsi: Batched prepare for cmd reqs virtio-scsi: Two stages processing of cmd request virtio-scsi: Add migration state notifier for dataplane code virtio-scsi: Hook up with dataplane virtio-scsi-dataplane: Code to run virtio-scsi on iothread virtio-scsi: Add VirtIOSCSIVring in VirtIOSCSIReq virtio-scsi: Add 'iothread' property to virtio-scsi virtio: add a wrapper for virtio-backend initialization virtio-9p: fix virtio-9p child refcount in transports ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>