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| author | Thomas Gleixner <tglx@linutronix.de> | 2015-06-05 22:25:01 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-06-05 22:25:01 +0200 |
| commit | 9f61f62544747db5d5c590bfae9dd19f1337e421 (patch) | |
| tree | 74772cccd14e7ab6d01a3452d4030cd7f8e58ccb /drivers/vfio/vfio.c | |
| parent | de8d1810fda5463ee60ba2937ca68e55a52bd9e7 (diff) | |
| parent | 086e8ddb567951513a5dace21a09297768aee14f (diff) | |
| download | linux-9f61f62544747db5d5c590bfae9dd19f1337e421.tar.bz2 | |
Merge branch 'linus' into irq/core
Get the urgent fixes from upstream to avoid conflicts.
Diffstat (limited to 'drivers/vfio/vfio.c')
| -rw-r--r-- | drivers/vfio/vfio.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index 0d336625ac71..e1278fe04b1e 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -710,6 +710,8 @@ void *vfio_del_group_dev(struct device *dev) void *device_data = device->device_data; struct vfio_unbound_dev *unbound; unsigned int i = 0; + long ret; + bool interrupted = false; /* * The group exists so long as we have a device reference. Get @@ -755,9 +757,22 @@ void *vfio_del_group_dev(struct device *dev) vfio_device_put(device); - } while (wait_event_interruptible_timeout(vfio.release_q, - !vfio_dev_present(group, dev), - HZ * 10) <= 0); + if (interrupted) { + ret = wait_event_timeout(vfio.release_q, + !vfio_dev_present(group, dev), HZ * 10); + } else { + ret = wait_event_interruptible_timeout(vfio.release_q, + !vfio_dev_present(group, dev), HZ * 10); + if (ret == -ERESTARTSYS) { + interrupted = true; + dev_warn(dev, + "Device is currently in use, task" + " \"%s\" (%d) " + "blocked until device is released", + current->comm, task_pid_nr(current)); + } + } + } while (ret <= 0); vfio_group_put(group); |