Fix cherry-pick

pageserver/src/basebackup.rs

@@ -90,7 +90,7 @@ impl<'a> Basebackup<'a> {
         // Consolidate the derived and the provided prev_lsn values
         let prev_lsn = if let Some(provided_prev_lsn) = prev_lsn {
             if backup_prev != Lsn(0) {
-                ensure!(backup_prev == provided_prev_lsn)
+                anyhow::ensure!(backup_prev == provided_prev_lsn)
             }
             provided_prev_lsn
         } else {

pageserver/src/page_service.rs

@@ -538,7 +538,7 @@ impl PageServerHandler {
         {
             let mut writer = CopyDataSink { pgb };
 
-            let basebackup =
+            let mut basebackup =
                 basebackup::Basebackup::new(&mut writer, &timeline, lsn, prev_lsn, full_backup)?;
             span.record("lsn", &basebackup.lsn.to_string().as_str());
             basebackup.send_tarball()?;
@@ -656,10 +656,10 @@ impl postgres_backend::Handler for PageServerHandler {
             let timelineid = ZTimelineId::from_str(params[1])?;
 
             self.check_permission(Some(tenantid))?;
-            let timeline = tenant_mgr::get_local_timeline_with_load(tenantid, timelineid)
+            let timeline = tenant_mgr::get_timeline_for_tenant_load(tenantid, timelineid)
                 .context("Cannot load local timeline")?;
 
-            let end_of_timeline = timeline.tline.get_last_record_rlsn();
+            let end_of_timeline = timeline.get_last_record_rlsn();
 
             pgb.write_message_noflush(&BeMessage::RowDescription(&[
                 RowDescriptor::text_col(b"prev_lsn"),

zenith_utils/src/pq_proto.rs

@@ -480,6 +480,18 @@ impl RowDescriptor<'_> {
             formatcode: 0,
         }
     }
+
+    pub const fn text_col(name: &[u8]) -> RowDescriptor {
+        RowDescriptor {
+            name,
+            tableoid: 0,
+            attnum: 0,
+            typoid: TEXT_OID,
+            typlen: -1,
+            typmod: 0,
+            formatcode: 0,
+        }
+    }
 }
 
 #[derive(Debug)]