disk_block_cache: Read lock the cache on UpdateMetadata instead of write locking, because it only happens on Gets.
disk_block_cache: Read lock the cache on UpdateMetadata instead of write locking, because it only happens on Gets.

keybase/client,keybase/kbfs,keybase/client,keybase/kbfs,keybase/client,keybase/kbfs,keybase/client,keybase/client,keybase/kbfs,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client