qemu-kvm/SOURCES/kvm-qcow2-Explicit-number-r...

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From e0ee7e18ae8fb3430202de49faa34091359ef675 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Thu, 6 Dec 2018 17:12:38 +0000
Subject: [PATCH 13/15] qcow2: Explicit number replaced by a constant
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20181206171240.5674-14-kwolf@redhat.com>
Patchwork-id: 83292
O-Subject: [RHEL-8.0 qemu-kvm PATCH 13/15] qcow2: Explicit number replaced by a constant
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 bd016b912cc68c6f6c68cd5acb2e13126bd9e05c)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/qcow2.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/block/qcow2.c b/block/qcow2.c
index acd076c..114dcdd 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -1321,7 +1321,7 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options,
/* 2^(s->refcount_order - 3) is the refcount width in bytes */
s->refcount_block_bits = s->cluster_bits - (s->refcount_order - 3);
s->refcount_block_size = 1 << s->refcount_block_bits;
- bs->total_sectors = header.size / 512;
+ bs->total_sectors = header.size / BDRV_SECTOR_SIZE;
s->csize_shift = (62 - (s->cluster_bits - 8));
s->csize_mask = (1 << (s->cluster_bits - 8)) - 1;
s->cluster_offset_mask = (1LL << s->csize_shift) - 1;
@@ -3494,7 +3494,7 @@ static int coroutine_fn qcow2_co_truncate(BlockDriverState *bs, int64_t offset,
goto fail;
}
- old_length = bs->total_sectors * 512;
+ old_length = bs->total_sectors * BDRV_SECTOR_SIZE;
new_l1_size = size_to_l1(s, offset);
if (offset < old_length) {
--
1.8.3.1