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block/parallels: replace some magic numbers 

Signed-off-by: Klim Kireev <klim.kireev@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Edgar Kaziakhmedov <edgar.kaziakhmedov@virtuozzo.com>
Message-id: 20180112090122.1702-5-klim.kireev@virtuozzo.com
CC: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Klim Kireev 2018-01-12 12:01:21 +03:00 committed by Stefan Hajnoczi
parent 90fe66f046
commit 908b1c848e
2 changed files with 5 additions and 2 deletions
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5
block/parallels.c
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@ -476,8 +476,9 @@ static int parallels_create(const char *filename, QemuOpts *opts, Error **errp)
memcpy(header.magic, HEADER_MAGIC2, sizeof(header.magic));
header.version = cpu_to_le32(HEADER_VERSION);
/* don't care much about geometry, it is not used on image level */
header.heads = cpu_to_le32(16);
header.cylinders = cpu_to_le32(total_size / BDRV_SECTOR_SIZE / 16 / 32);
header.heads = cpu_to_le32(HEADS_NUMBER);
header.cylinders = cpu_to_le32(total_size / BDRV_SECTOR_SIZE
/ HEADS_NUMBER / SEC_IN_CYL);
header.tracks = cpu_to_le32(cl_size >> BDRV_SECTOR_BITS);
header.bat_entries = cpu_to_le32(bat_entries);
header.nb_sectors = cpu_to_le64(DIV_ROUND_UP(total_size, BDRV_SECTOR_SIZE));

2
block/parallels.h
View File

@ -34,6 +34,8 @@
#include "qemu/coroutine.h"
#include "qemu/typedefs.h"
#define HEADS_NUMBER 16
#define SEC_IN_CYL 32
#define DEFAULT_CLUSTER_SIZE 1048576 /* 1 MiB */
/* always little-endian */