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Code Issues Releases Wiki Activity

vfio/pci: Hold igate across releasing eventfd contexts

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No need to release and immediately re-acquire igate while clearing
out the eventfd ctxs.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Alex Williamson 2020-07-27 13:43:38 -06:00
parent 9d532f2869
commit 924b51abf9
1 changed files with 1 additions and 3 deletions
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4
drivers/vfio/pci/vfio_pci.c
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@ -523,14 +523,12 @@ static void vfio_pci_release(void *device_data)
vfio_pci_vf_token_user_add(vdev, -1);
vfio_spapr_pci_eeh_release(vdev->pdev);
vfio_pci_disable(vdev);
mutex_lock(&vdev->igate);
if (vdev->err_trigger) {
eventfd_ctx_put(vdev->err_trigger);
vdev->err_trigger = NULL;
}
mutex_unlock(&vdev->igate);
mutex_lock(&vdev->igate);
if (vdev->req_trigger) {
eventfd_ctx_put(vdev->req_trigger);
vdev->req_trigger = NULL;