diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2022-11-18 03:19:14 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-11-18 05:30:39 +0300 |
| commit | 224b744abf9f0663ca6762a79c7298b663fa4f04 (patch) | |
| tree | 4f6a817547e7d0584d96cd539a3d63be75059cf1 /drivers/vfio/vfio_main.c | |
| parent | b4b221bd79a1c698d9653e3ae2c3cb61cdc9aee7 (diff) | |
| parent | 847ccab8fdcf4a0cd85a278480fab1ccdc9f6136 (diff) | |
| download | linux-224b744abf9f0663ca6762a79c7298b663fa4f04.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
include/linux/bpf.h
1f6e04a1c7b8 ("bpf: Fix offset calculation error in __copy_map_value and zero_map_value")
aa3496accc41 ("bpf: Refactor kptr_off_tab into btf_record")
f71b2f64177a ("bpf: Refactor map->off_arr handling")
https://lore.kernel.org/all/20221114095000.67a73239@canb.auug.org.au/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/vfio/vfio_main.c')
| -rw-r--r-- | drivers/vfio/vfio_main.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c index 2d168793d4e1..6e8804fe0095 100644 --- a/drivers/vfio/vfio_main.c +++ b/drivers/vfio/vfio_main.c @@ -125,6 +125,19 @@ 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 */ @@ -801,8 +814,9 @@ static struct file *vfio_device_open(struct vfio_device *device) err_close_device: mutex_lock(&device->dev_set->lock); mutex_lock(&device->group->group_lock); - if (device->open_count == 1 && device->ops->close_device) { - device->ops->close_device(device); + if (device->open_count == 1) { + if (device->ops->close_device) + device->ops->close_device(device); vfio_device_container_unregister(device); } @@ -1017,10 +1031,12 @@ static int vfio_device_fops_release(struct inode *inode, struct file *filep) mutex_lock(&device->dev_set->lock); vfio_assert_device_open(device); mutex_lock(&device->group->group_lock); - if (device->open_count == 1 && device->ops->close_device) - device->ops->close_device(device); + if (device->open_count == 1) { + if (device->ops->close_device) + device->ops->close_device(device); - vfio_device_container_unregister(device); + vfio_device_container_unregister(device); + } mutex_unlock(&device->group->group_lock); device->open_count--; if (device->open_count == 0) |