sharedkv: use lock_for_scope_fast

This allows us to avoid repeated open() and close() syscalls
and speeds up the new xt/stress-sharedkv.t maintainer test
by roughly 7%.

1 files changed, 1 insertions, 0 deletions

diff --git a/MANIFEST b/MANIFEST
index d6902076..017dc7f2 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -454,3 +454,4 @@ xt/perf-msgview.t
 xt/perf-nntpd.t
 xt/perf-threading.t
 xt/solver.t
+xt/stress-sharedkv.t