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Diffstat (limited to 'block/null.c')
-rw-r--r--block/null.c31
1 files changed, 26 insertions, 5 deletions
diff --git a/block/null.c b/block/null.c
index 876f90965b..dd9c13f9ba 100644
--- a/block/null.c
+++ b/block/null.c
@@ -30,11 +30,6 @@ static QemuOptsList runtime_opts = {
.head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head),
.desc = {
{
- .name = "filename",
- .type = QEMU_OPT_STRING,
- .help = "",
- },
- {
.name = BLOCK_OPT_SIZE,
.type = QEMU_OPT_SIZE,
.help = "size of the null block",
@@ -54,6 +49,30 @@ static QemuOptsList runtime_opts = {
},
};
+static void null_co_parse_filename(const char *filename, QDict *options,
+ Error **errp)
+{
+ /* This functions only exists so that a null-co:// filename is accepted
+ * with the null-co driver. */
+ if (strcmp(filename, "null-co://")) {
+ error_setg(errp, "The only allowed filename for this driver is "
+ "'null-co://'");
+ return;
+ }
+}
+
+static void null_aio_parse_filename(const char *filename, QDict *options,
+ Error **errp)
+{
+ /* This functions only exists so that a null-aio:// filename is accepted
+ * with the null-aio driver. */
+ if (strcmp(filename, "null-aio://")) {
+ error_setg(errp, "The only allowed filename for this driver is "
+ "'null-aio://'");
+ return;
+ }
+}
+
static int null_file_open(BlockDriverState *bs, QDict *options, int flags,
Error **errp)
{
@@ -242,6 +261,7 @@ static BlockDriver bdrv_null_co = {
.instance_size = sizeof(BDRVNullState),
.bdrv_file_open = null_file_open,
+ .bdrv_parse_filename = null_co_parse_filename,
.bdrv_close = null_close,
.bdrv_getlength = null_getlength,
@@ -261,6 +281,7 @@ static BlockDriver bdrv_null_aio = {
.instance_size = sizeof(BDRVNullState),
.bdrv_file_open = null_file_open,
+ .bdrv_parse_filename = null_aio_parse_filename,
.bdrv_close = null_close,
.bdrv_getlength = null_getlength,