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| author | Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> | 2017-03-17 06:17:39 +0300 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2017-03-31 13:55:10 +0300 |
| commit | e5f84dbaea59b4f712dac428c337528b70e1c533 (patch) | |
| tree | f39d0e4e18b8a24b4da0b2d71f7a5c4aa70b3d18 /drivers/s390/cio/vfio_ccw_ops.c | |
| parent | 120e214e504fd6d3e33ec4b661193600b2faab95 (diff) | |
| download | linux-e5f84dbaea59b4f712dac428c337528b70e1c533.tar.xz | |
vfio: ccw: return I/O results asynchronously
Introduce a singlethreaded workqueue to handle the I/O interrupts.
With the work added to this queue, we store the I/O results to the
io_region of the subchannel, then signal the userspace program to
handle the results.
Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Message-Id: <20170317031743.40128-13-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/vfio_ccw_ops.c')
| -rw-r--r-- | drivers/s390/cio/vfio_ccw_ops.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c index 1294c5347410..d754d3d90574 100644 --- a/drivers/s390/cio/vfio_ccw_ops.c +++ b/drivers/s390/cio/vfio_ccw_ops.c @@ -202,9 +202,6 @@ static ssize_t vfio_ccw_mdev_write(struct mdev_device *mdev, if (region->ret_code != 0) return region->ret_code; - if (private->io_trigger) - eventfd_signal(private->io_trigger, 1); - return count; } |