Convert all block drivers to new bdrv_create
Now we can make use of the newly introduced option structures. Instead of
having bdrv_create carry more and more parameters (which are format specific in
most cases), just pass a option structure as defined by the driver itself.
bdrv_create2() contains an emulation of the old interface to simplify the
transition.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/block/vpc.c b/block/vpc.c
index 211ae5c..662a6f6 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -477,8 +477,7 @@
return 0;
}
-static int vpc_create(const char *filename, int64_t total_sectors,
- const char *backing_file, int flags)
+static int vpc_create(const char *filename, QEMUOptionParameter *options)
{
uint8_t buf[1024];
struct vhd_footer* footer = (struct vhd_footer*) buf;
@@ -489,10 +488,17 @@
uint8_t heads;
uint8_t secs_per_cyl;
size_t block_size, num_bat_entries;
+ int64_t total_sectors = 0;
- if (backing_file != NULL)
- return -ENOTSUP;
+ // Read out options
+ while (options && options->name) {
+ if (!strcmp(options->name, "size")) {
+ total_sectors = options->value.n / 512;
+ }
+ options++;
+ }
+ // Create the file
fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
if (fd < 0)
return -EIO;
@@ -587,6 +593,11 @@
bdrv_delete(s->hd);
}
+static QEMUOptionParameter vpc_create_options[] = {
+ { "size", OPT_SIZE },
+ { NULL }
+};
+
static BlockDriver bdrv_vpc = {
.format_name = "vpc",
.instance_size = sizeof(BDRVVPCState),
@@ -596,6 +607,8 @@
.bdrv_write = vpc_write,
.bdrv_close = vpc_close,
.bdrv_create = vpc_create,
+
+ .create_options = vpc_create_options,
};
static void bdrv_vpc_init(void)
