From 6067fd2ec96b36cb8cc09dc389f5d49c9549ca73 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Thu, 6 Dec 2018 17:12:32 +0000
Subject: [PATCH 07/15] qcow2: Make sizes more humanly readable

RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20181206171240.5674-8-kwolf@redhat.com>
Patchwork-id: 83286
O-Subject: [RHEL-8.0 qemu-kvm PATCH 07/15] qcow2: Make sizes more humanly readable
Bugzilla: 1656507
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>

From: Leonid Bloch <lbloch@janustech.com>

Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit b6a95c6d10075bb540ce50198bbe22fc0a4392c7)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
 block/qcow2.c | 2 +-
 block/qcow2.h | 9 +++++----
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/block/qcow2.c b/block/qcow2.c
index a0f7234..3859112 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -826,7 +826,7 @@ static void read_cache_sizes(BlockDriverState *bs, QemuOpts *opts,
         }
     } else {
         if (!l2_cache_size_set) {
-            *l2_cache_size = MAX(DEFAULT_L2_CACHE_BYTE_SIZE,
+            *l2_cache_size = MAX(DEFAULT_L2_CACHE_SIZE,
                                  (uint64_t)DEFAULT_L2_CACHE_CLUSTERS
                                  * s->cluster_size);
         }
diff --git a/block/qcow2.h b/block/qcow2.h
index 3d92cdb..f73a48a 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -27,6 +27,7 @@
 
 #include "crypto/block.h"
 #include "qemu/coroutine.h"
+#include "qemu/units.h"
 
 //#define DEBUG_ALLOC
 //#define DEBUG_ALLOC2
@@ -43,11 +44,11 @@
 
 /* 8 MB refcount table is enough for 2 PB images at 64k cluster size
  * (128 GB for 512 byte clusters, 2 EB for 2 MB clusters) */
-#define QCOW_MAX_REFTABLE_SIZE 0x800000
+#define QCOW_MAX_REFTABLE_SIZE S_8MiB
 
 /* 32 MB L1 table is enough for 2 PB images at 64k cluster size
  * (128 GB for 512 byte clusters, 2 EB for 2 MB clusters) */
-#define QCOW_MAX_L1_SIZE 0x2000000
+#define QCOW_MAX_L1_SIZE S_32MiB
 
 /* Allow for an average of 1k per snapshot table entry, should be plenty of
  * space for snapshot names and IDs */
@@ -75,9 +76,9 @@
 
 /* Whichever is more */
 #define DEFAULT_L2_CACHE_CLUSTERS 8 /* clusters */
-#define DEFAULT_L2_CACHE_BYTE_SIZE 1048576 /* bytes */
+#define DEFAULT_L2_CACHE_SIZE S_1MiB
 
-#define DEFAULT_CLUSTER_SIZE 65536
+#define DEFAULT_CLUSTER_SIZE S_64KiB
 
 
 #define QCOW2_OPT_LAZY_REFCOUNTS "lazy-refcounts"
-- 
1.8.3.1