tree e45a4c8fb8dc8357dc6ee8d5995d7f8de71fd10e
parent 61524f1bccc041b7871a21984b69b8e538f446c0
author Junaid Shahid <junaids@google.com> 1546564468 -0800
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1573896589 +0100

kvm: Convert kvm_lock to a mutex

commit 0d9ce162cf46c99628cc5da9510b959c7976735b upstream.

It doesn't seem as if there is any particular need for kvm_lock to be a
spinlock, so convert the lock to a mutex so that sleepable functions (in
particular cond_resched()) can be called while holding it.

Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[bwh: Backported to 4.9:
 - Drop changes in kvm_hyperv_tsc_notifier(), vm_stat_clear(),
   vcpu_stat_clear(), kvm_uevent_notify_change()
 - Adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>