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authorFam Zheng <famz@redhat.com>2013-05-02 10:25:25 +0800
committerStefan Hajnoczi <stefanha@redhat.com>2013-05-03 10:33:43 +0200
commit95b0aa4231dfc827ddc189138d6502cbca66d2b6 (patch)
treed8484bebc119d33a4f847ed096609ceda79aa201 /block/vmdk.c
parent69e0b6dfa455924842bfcbfa810fde34899f1350 (diff)
vmdk: change magic number to macro
Two hard coded flag bits are changed to macros. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block/vmdk.c')
-rw-r--r--block/vmdk.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/vmdk.c b/block/vmdk.c
index cc19e207d1..0463d3b36d 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -32,6 +32,7 @@
#define VMDK3_MAGIC (('C' << 24) | ('O' << 16) | ('W' << 8) | 'D')
#define VMDK4_MAGIC (('K' << 24) | ('D' << 16) | ('M' << 8) | 'V')
#define VMDK4_COMPRESSION_DEFLATE 1
+#define VMDK4_FLAG_NL_DETECT (1 << 0)
#define VMDK4_FLAG_RGD (1 << 1)
/* Zeroed-grain enable bit */
#define VMDK4_FLAG_ZERO_GRAIN (1 << 2)
@@ -1287,7 +1288,7 @@ static int vmdk_create_extent(const char *filename, int64_t filesize,
magic = cpu_to_be32(VMDK4_MAGIC);
memset(&header, 0, sizeof(header));
header.version = zeroed_grain ? 2 : 1;
- header.flags = 3
+ header.flags = VMDK4_FLAG_RGD | VMDK4_FLAG_NL_DETECT
| (compress ? VMDK4_FLAG_COMPRESS | VMDK4_FLAG_MARKER : 0)
| (zeroed_grain ? VMDK4_FLAG_ZERO_GRAIN : 0);
header.compressAlgorithm = compress ? VMDK4_COMPRESSION_DEFLATE : 0;