diff options
| author | Yuval Shaia <yuval.shaia@oracle.com> | 2019-03-11 03:29:07 -0700 |
|---|---|---|
| committer | Marcel Apfelbaum <marcel.apfelbaum@gmail.com> | 2019-03-16 15:52:44 +0200 |
| commit | 2cfa95300908f401f5b9bdf3de734cf6228a2722 (patch) | |
| tree | c1b3ef94eb46a9a8f205bd22b5f9757ed9000859 /hw/rdma/rdma_rm.c | |
| parent | b20fc7951084bb77e867d114c916e409c3a6821a (diff) | |
hw/rdma: Protect against concurrent execution of poll_cq
The function rdma_poll_cq is called from two contexts - completion
handler thread which sense new completion on backend channel and
explicitly as result of guest issuing poll_cq command.
Add lock to protect against concurrent executions.
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <1552300155-25216-4-git-send-email-yuval.shaia@oracle.com>
Reviewed-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Diffstat (limited to 'hw/rdma/rdma_rm.c')
| -rw-r--r-- | hw/rdma/rdma_rm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/rdma/rdma_rm.c b/hw/rdma/rdma_rm.c index 66177b42f5..7ea62a9e60 100644 --- a/hw/rdma/rdma_rm.c +++ b/hw/rdma/rdma_rm.c @@ -617,12 +617,16 @@ int rdma_rm_init(RdmaDeviceResources *dev_res, struct ibv_device_attr *dev_attr) init_ports(dev_res); + qemu_mutex_init(&dev_res->lock); + return 0; } void rdma_rm_fini(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev, const char *ifname) { + qemu_mutex_destroy(&dev_res->lock); + fini_ports(dev_res, backend_dev, ifname); res_tbl_free(&dev_res->uc_tbl); |