Revert "SERVER-92273 ListCollections without filter should include commit pending namespaces (7.0 only)" (#26125)r7.0.14-rc0r7.0.14

GitOrigin-RevId: ce59cfc6a3c5e5c067dca0d30697edd68d4f5188

1 files changed, 10 insertions, 4 deletions

diff --git a/src/mongo/db/commands/list_collections.cpp b/src/mongo/db/commands/list_collections.cpp
index 77c6b2a7d2f..544e6e222ea 100644
--- a/src/mongo/db/commands/list_collections.cpp
+++ b/src/mongo/db/commands/list_collections.cpp
@@ -431,10 +431,16 @@ public:
                             return true;
                         };
 
-                        std::vector<const Collection*> collections =
-                            catalog->establishConsistentCollections(opCtx, dbName, readTimestamp);
-                        for (const auto& collection : collections) {
-                            perCollectionWork(collection);
+                        // If we are lock-free we can just iterate over our collection catalog
+                        // without needing to yield as we don't take any locks.
+                        if (opCtx->isLockFreeReadsOp()) {
+                            auto collectionCatalog = CollectionCatalog::get(opCtx);
+                            for (auto&& coll : collectionCatalog->range(dbName)) {
+                                perCollectionWork(coll);
+                            }
+                        } else {
+                            mongo::catalog::forEachCollectionFromDb(
+                                opCtx, dbName, MODE_IS, perCollectionWork);
                         }
                     }