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-rw-r--r--fs/btrfs/extent_io.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 4c878476bb91..b08ea4717e9d 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -107,6 +107,12 @@ void extent_io_exit(void)
list_del(&eb->leak_list);
kmem_cache_free(extent_buffer_cache, eb);
}
+
+ /*
+ * Make sure all delayed rcu free are flushed before we
+ * destroy caches.
+ */
+ rcu_barrier();
if (extent_state_cache)
kmem_cache_destroy(extent_state_cache);
if (extent_buffer_cache)
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