diff options
| author | Alex Williamson <alex.williamson@redhat.com> | 2014-08-07 21:12:04 +0400 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2014-08-07 21:12:04 +0400 |
| commit | 61d792562b53c610f9fe917f2bbc22218aa39c22 (patch) | |
| tree | 639616536bce3e1855e24b8c240f688b7e62f283 /drivers/vfio/pci/vfio_pci_private.h | |
| parent | 9c22e660ce8105debb497933b9900eaeb40836d2 (diff) | |
| download | linux-61d792562b53c610f9fe917f2bbc22218aa39c22.tar.xz | |
vfio-pci: Use mutex around open, release, and remove
Serializing open/release allows us to fix a refcnt error if we fail
to enable the device and lets us prevent devices from being unbound
or opened, giving us an opportunity to do bus resets on release. No
restriction added to serialize binding devices to vfio-pci while the
mutex is held though.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio/pci/vfio_pci_private.h')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci_private.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/vfio/pci/vfio_pci_private.h b/drivers/vfio/pci/vfio_pci_private.h index 9c6d5d0f3b02..31e7a30196ab 100644 --- a/drivers/vfio/pci/vfio_pci_private.h +++ b/drivers/vfio/pci/vfio_pci_private.h @@ -55,7 +55,7 @@ struct vfio_pci_device { bool bardirty; bool has_vga; struct pci_saved_state *pci_saved_state; - atomic_t refcnt; + int refcnt; struct eventfd_ctx *err_trigger; }; |