osd: fix head_existed check

ssc isn't always defined, as we pass here for !may_read() too.

diff --git a/src/osd/ReplicatedPG.cc b/src/osd/ReplicatedPG.cc
index bf782952eafdfa59ef382f21b2492e74f5e40f8e..df298b1abfbb986a93bd77ed01a475a308fb983b 100644 (file)
--- a/src/osd/ReplicatedPG.cc
+++ b/src/osd/ReplicatedPG.cc
@@ -1624,7 +1624,7 @@ int ReplicatedPG::prepare_transaction(OpContext *ctx)
   // we'll need this to log
   eversion_t old_version = poi->version;
 
-  bool head_existed = ctx->obs->ssc->snapset.head_exists;
+  bool head_existed = ctx->obs->exists;
 
   // prepare the actual mutation
   int result = do_osd_ops(ctx, ctx->ops, ctx->outdata);