From 00e7f0994a39852ab1adabfb7e19ff2634e916a0 Mon Sep 17 00:00:00 2001
From: Milo Turner <mturner@starry.com>
Date: Fri, 13 Aug 2021 10:28:58 -0400
Subject: [PATCH] Don't open /var journals in volatile mode when
 runtime_journal==NULL

(cherry picked from commit d64441b669932ab97fbbfc71cb143045f690039e)

Conflict:NA
Reference:https://github.com/systemd/systemd/commit/00e7f0994a39852ab1adabfb7e19ff2634e916a0
---
 src/journal/journald-server.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/journal/journald-server.c b/src/journal/journald-server.c
index 30f04f5383..a0695ec519 100644
--- a/src/journal/journald-server.c
+++ b/src/journal/journald-server.c
@@ -415,6 +415,13 @@ static JournalFile* find_journal(Server *s, uid_t uid) {
         if (s->runtime_journal)
                 return s->runtime_journal;
 
+        /* If we are not in persistent mode, then we need return NULL immediately rather than opening a
+         * persistent journal of any sort.
+         *
+         * Fixes https://github.com/systemd/systemd/issues/20390 */
+        if (!IN_SET(s->storage, STORAGE_AUTO, STORAGE_PERSISTENT))
+                return NULL;
+
         if (uid_for_system_journal(uid))
                 return s->system_journal;
 
-- 
2.33.0