block/qapi: Add cache information to query-block

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/hmp.c b/hmp.c
index 94b27df086..05c3730227 100644
--- a/hmp.c
+++ b/hmp.c
@@ -294,6 +294,7 @@ void hmp_info_block(Monitor *mon, const QDict *qdict)
 {
     BlockInfoList *block_list, *info;
     ImageInfo *image_info;
+    BlockDeviceInfo *inserted;
     const char *device = qdict_get_try_str(qdict, "device");
     bool verbose = qdict_get_try_bool(qdict, "verbose", 0);
 
@@ -335,6 +336,13 @@ void hmp_info_block(Monitor *mon, const QDict *qdict)
             continue;
         }
 
+        inserted = info->value->inserted;
+
+        monitor_printf(mon, "    Cache mode:       %s%s%s\n",
+                       inserted->cache->writeback ? "writeback" : "writethrough",
+                       inserted->cache->direct ? ", direct" : "",
+                       inserted->cache->no_flush ? ", ignore flushes" : "");
+
         if (info->value->inserted->has_backing_file) {
             monitor_printf(mon,
                            "    Backing file:     %s "