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sheepdog: Use bdrv_open options instead of filename 

This is only to convert the internal interface that is used for passing
the "filename" to be parsed, but converting to actual fine grained
options is left for another day, as it doesn't look trivial.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf 2013-04-12 18:10:49 +02:00
parent a9ccedc3da
commit c8c96350e0
1 changed files with 31 additions and 1 deletions
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32
block/sheepdog.c
View File

@ -1126,7 +1126,21 @@ static int write_object(int fd, char *buf, uint64_t oid, int copies,
create, cache_flags);
}
static int sd_open(BlockDriverState *bs, const char *filename,
/* TODO Convert to fine grained options */
static QemuOptsList runtime_opts = {
.name = "sheepdog",
.head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head),
.desc = {
{
.name = "filename",
.type = QEMU_OPT_STRING,
.help = "URL to the sheepdog image",
},
{ /* end of list */ }
},
};
static int sd_open(BlockDriverState *bs, const char *dummy,
QDict *options, int flags)
{
int ret, fd;
@ -1135,6 +1149,20 @@ static int sd_open(BlockDriverState *bs, const char *filename,
char vdi[SD_MAX_VDI_LEN], tag[SD_MAX_VDI_TAG_LEN];
uint32_t snapid;
char *buf = NULL;
QemuOpts *opts;
Error *local_err = NULL;
const char *filename;
opts = qemu_opts_create_nofail(&runtime_opts);
qemu_opts_absorb_qdict(opts, options, &local_err);
if (error_is_set(&local_err)) {
qerror_report_err(local_err);
error_free(local_err);
ret = -EINVAL;
goto out;
}
filename = qemu_opt_get(opts, "filename");
QLIST_INIT(&s->inflight_aio_head);
QLIST_INIT(&s->pending_aio_head);
@ -1199,6 +1227,7 @@ static int sd_open(BlockDriverState *bs, const char *filename,
bs->total_sectors = s->inode.vdi_size / SECTOR_SIZE;
pstrcpy(s->name, sizeof(s->name), vdi);
qemu_co_mutex_init(&s->lock);
qemu_opts_del(opts);
g_free(buf);
return 0;
out:
@ -1206,6 +1235,7 @@ out:
if (s->fd >= 0) {
closesocket(s->fd);
}
qemu_opts_del(opts);
g_free(buf);
return ret;
}