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hyperv-fixes for 5.10-rc5 

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Merge tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull Hyper-V fix from Wei Liu:
 "One patch from Chris to fix kexec on Hyper-V"

* tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  Drivers: hv: vmbus: Allow cleanup of VMBUS_CONNECT_CPU if disconnected
zero-sugar-mainline-defconfig
Linus Torvalds 2020-11-16 15:02:33 -08:00
parent a08f452324 92e4dc8b05
commit a5698b3835
1 changed files with 6 additions and 2 deletions
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8
drivers/hv/hv.c
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@ -244,9 +244,13 @@ int hv_synic_cleanup(unsigned int cpu)
/*
* Hyper-V does not provide a way to change the connect CPU once
* it is set; we must prevent the connect CPU from going offline.
* it is set; we must prevent the connect CPU from going offline
* while the VM is running normally. But in the panic or kexec()
* path where the vmbus is already disconnected, the CPU must be
* allowed to shut down.
*/
if (cpu == VMBUS_CONNECT_CPU)
if (cpu == VMBUS_CONNECT_CPU &&
vmbus_connection.conn_state == CONNECTED)
return -EBUSY;
/*