https://github.com/torvalds/linux
Revision c2d2e6738a209f0f9dffa2dc8e7292fc45360d61 authored by Jason Andryuk on 28 February 2018, 12:23:23 UTC, committed by Juergen Gross on 28 February 2018, 19:20:08 UTC
A toolstack may delete the vif frontend and backend xenstore entries
while xen-netfront is in the removal code path. In that case, the
checks for xenbus_read_driver_state would return XenbusStateUnknown, and
xennet_remove would hang indefinitely. This hang prevents system
shutdown.
xennet_remove must be able to handle XenbusStateUnknown, and
netback_changed must also wake up the wake_queue for that state as well.
Fixes: 5b5971df3bc2 ("xen-netfront: remove warning when unloading module")
Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Cc: Eduardo Otubo <otubo@redhat.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Tip revision: c2d2e6738a209f0f9dffa2dc8e7292fc45360d61 authored by Jason Andryuk on 28 February 2018, 12:23:23 UTC
xen-netfront: Fix hang on device removal
xen-netfront: Fix hang on device removal
Tip revision: c2d2e67
| File | Mode | Size |
|---|---|---|
| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| drm | ||
| dt-bindings | ||
| keys | ||
| kvm | ||
| linux | ||
| math-emu | ||
| media | ||
| memory | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| scsi | ||
| soc | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| video | ||
| xen |
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