From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Wed, 25 Mar 2020 15:45:56 +0000 (+0200)
Subject: lib-index: mail_cache_lock() - Clarify why index->mapping might be TRUE here
X-Git-Tag: 2.3.11.2~453
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=60586966e5787e8e187001936273b45915e49797;p=thirdparty%2Fdovecot%2Fcore.git

lib-index: mail_cache_lock() - Clarify why index->mapping might be TRUE here
---

diff --git a/src/lib-index/mail-cache.c b/src/lib-index/mail-cache.c
index 14b57b533f..15f709cf42 100644
--- a/src/lib-index/mail-cache.c
+++ b/src/lib-index/mail-cache.c
@@ -662,6 +662,10 @@ mail_cache_lock_full(struct mail_cache *cache, bool nonblock)
 	int i;
 
 	i_assert(!cache->locked);
+	/* the only reason why we might be in here while mapping the index is
+	   if we're coming from mail_cache_expunge_count() while syncing the
+	   index. */
+	i_assert(!cache->index->mapping || cache->index->log_sync_locked);
 
 	if (!cache->opened)
 		(void)mail_cache_open_and_verify(cache);