Merge tag 'kvm-ppc-fixes-5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into kvm-master

PPC KVM fixes for 5.2

- Several bug fixes for the new XIVE-native code.
- Replace kvm->lock by other mutexes in several places where we hold a
  vcpu mutex, to avoid lock order inversions.
- Fix a lockdep warning on guest entry for radix-mode guests.
- Fix a bug causing user-visible corruption of SPRG3 on the host.

1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c
index 191b79948424..1e525d70f833 100644
--- a/kernel/bpf/devmap.c
+++ b/kernel/bpf/devmap.c
@@ -164,6 +164,9 @@ static void dev_map_free(struct bpf_map *map)
         bpf_clear_redirect_map(map);
         synchronize_rcu();
 
+        /* Make sure prior __dev_map_entry_free() have completed. */
+        rcu_barrier();
+
         /* To ensure all pending flush operations have completed wait for flush
          * bitmap to indicate all flush_needed bits to be zero on _all_ cpus.
          * Because the above synchronize_rcu() ensures the map is disconnected