From 320903cac23bb449df8c2e9cf737e16b3f94d684 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Tue, 19 Feb 2019 17:00:16 +0100
Subject: [PATCH 15/23] qcow2: Make sizes more humanly readable

RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20190219170023.27826-7-kwolf@redhat.com>
Patchwork-id: 84546
O-Subject: [RHEL-7.7 qemu-kvm-rhev PATCH 06/13] qcow2: Make sizes more humanly readable
Bugzilla: 1656913
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@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: Miroslav Rezanina <mrezanin@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