diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-11-29 23:42:27 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-12-02 19:04:39 +0300 |
| commit | 90337f526c98129b0b180fc52dc5f57d8e7a8614 (patch) | |
| tree | d7458a03027cde56b8191f656dc5cdf1531a767d /drivers/vfio | |
| parent | 169dd5c987e60e62aa5785b30d22ded2ae000286 (diff) | |
| parent | b7b275e60bcd5f89771e865a8239325f86d9927d (diff) | |
| download | linux-90337f526c98129b0b180fc52dc5f57d8e7a8614.tar.xz | |
Merge tag 'v6.1-rc7' into iommufd.git for-next
Resolve conflicts in drivers/vfio/vfio_main.c by using the iommfd version.
The rc fix was done a different way when iommufd patches reworked this
code.
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci_core.c | 10 | ||||
| -rw-r--r-- | drivers/vfio/vfio_main.c | 13 |
2 files changed, 18 insertions, 5 deletions
diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c index badc9d828cac..e030c2120183 100644 --- a/drivers/vfio/pci/vfio_pci_core.c +++ b/drivers/vfio/pci/vfio_pci_core.c @@ -2488,12 +2488,12 @@ static bool vfio_pci_dev_set_needs_reset(struct vfio_device_set *dev_set) struct vfio_pci_core_device *cur; bool needs_reset = false; - list_for_each_entry(cur, &dev_set->device_list, vdev.dev_set_list) { - /* No VFIO device in the set can have an open device FD */ - if (cur->vdev.open_count) - return false; + /* No other VFIO device in the set can be open. */ + if (vfio_device_set_open_count(dev_set) > 1) + return false; + + list_for_each_entry(cur, &dev_set->device_list, vdev.dev_set_list) needs_reset |= cur->needs_reset; - } return needs_reset; } diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c index ce6e6a560c70..6d51b700764e 100644 --- a/drivers/vfio/vfio_main.c +++ b/drivers/vfio/vfio_main.c @@ -126,6 +126,19 @@ static void vfio_release_device_set(struct vfio_device *device) xa_unlock(&vfio_device_set_xa); } +unsigned int vfio_device_set_open_count(struct vfio_device_set *dev_set) +{ + struct vfio_device *cur; + unsigned int open_count = 0; + + lockdep_assert_held(&dev_set->lock); + + list_for_each_entry(cur, &dev_set->device_list, dev_set_list) + open_count += cur->open_count; + return open_count; +} +EXPORT_SYMBOL_GPL(vfio_device_set_open_count); + /* * Group objects - create, release, get, put, search */ |