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| author | Mike Christie <michael.christie@oracle.com> | 2023-06-26 18:22:51 -0500 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-07-03 12:15:13 -0400 |
| commit | 3e11c6eb6ab07de36cde49594e16fed044bf276e (patch) | |
| tree | 8bf6a115a61128a7a3981b26f8b75f67598ee7df /tools/perf/scripts/python | |
| parent | 3845308fc8b0bc6a9345df4f69ef56f9adc52218 (diff) | |
vhost: create worker at end of vhost_dev_set_owner
vsock can start queueing work after VHOST_VSOCK_SET_GUEST_CID, so
after we have called vhost_worker_create it can be calling
vhost_work_queue and trying to access the vhost worker/task. If
vhost_dev_alloc_iovecs fails, then vhost_worker_free could free
the worker/task from under vsock.
This moves vhost_worker_create to the end of vhost_dev_set_owner
where we know we can no longer fail in that path. If it fails
after the VHOST_SET_OWNER and userspace closes the device, then
the normal vsock release handling will do the right thing.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Message-Id: <20230626232307.97930-2-michael.christie@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions