Jason Wang a127c5bbb6 vhost-vdpa: fix backend feature ioctls
Commit 653055b9ac ("vhost-vdpa: support get/set backend features")
introduces two malfunction backend features ioctls:

1) the ioctls was blindly added to vring ioctl instead of vdpa device
   ioctl
2) vhost_set_backend_features() was called when dev mutex has already
   been held which will lead a deadlock

This patch fixes the above issues.

Cc: Eli Cohen <[email protected]>
Reported-by: Zhu Lingshan <[email protected]>
Fixes: 653055b9ac ("vhost-vdpa: support get/set backend features")
Signed-off-by: Jason Wang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael S. Tsirkin <[email protected]>
2020-09-24 05:54:36 -04:00
2020-09-20 16:33:55 -07:00

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