os/bluestore: test _extend_log sequence advance

Signed-off-by: Pere Diaz Bou <[email protected]>

Author: Pere Diaz Bou

src/test/objectstore/test_bluefs.cc

@@ -1559,6 +1559,30 @@ TEST(BlueFS, test_log_runway_3) {
   }
 }
 
+TEST(BlueFS, test_log_runway_advance_seq) {
+  uint64_t max_log_runway = 65536;
+  ConfSaver conf(g_ceph_context->_conf);
+  conf.SetVal("bluefs_alloc_size", "4096");
+  conf.SetVal("bluefs_shared_alloc_size", "4096");
+  conf.SetVal("bluefs_compact_log_sync", "false");
+  conf.SetVal("bluefs_min_log_runway", "32768");
+  conf.SetVal("bluefs_max_log_runway", std::to_string(max_log_runway).c_str());
+  conf.ApplyChanges();
+
+  uint64_t size = 1048576 * 128;
+  TempBdev bdev{size};
+  BlueFS fs(g_ceph_context);
+  ASSERT_EQ(0, fs.add_block_device(BlueFS::BDEV_DB, bdev.path, false));
+  uuid_d fsid;
+  ASSERT_EQ(0, fs.mkfs(fsid, { BlueFS::BDEV_DB, false, false }));
+  ASSERT_EQ(0, fs.mount());
+  ASSERT_EQ(0, fs.maybe_verify_layout({ BlueFS::BDEV_DB, false, false }));
+
+  std::string longdir(max_log_runway*2, 'A');
+  ASSERT_EQ(fs.mkdir(longdir), 0);
+  fs.compact_log();
+}
+
 int main(int argc, char **argv) {
   auto args = argv_to_vec(argc, argv);
   map<string,string> defaults = {