journal: implement generic sharable mmap caching logic

instead of having one simple per-file cache implement an more
comprehensive one that works for multiple files and can actually
maintain multiple maps per file and per object type.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/journal/journald.h b/src/journal/journald.h
index d08a194780..0202893d86 100644
--- a/src/journal/journald.h
+++ b/src/journal/journald.h
@@ -93,6 +93,8 @@ typedef struct Server {
 
         Storage storage;
 
+        MMapCache *mmap;
+
         bool dev_kmsg_readable;
 
         uint64_t *kernel_seqnum;