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-rw-r--r--nbd/server.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/nbd/server.c b/nbd/server.c
index f55ccf8edf..0fb41c6c50 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -1461,7 +1461,7 @@ static void nbd_eject_notifier(Notifier *n, void *data)
NBDExport *nbd_export_new(BlockDriverState *bs, uint64_t dev_offset,
uint64_t size, const char *name, const char *desc,
- const char *bitmap, uint16_t nbdflags,
+ const char *bitmap, uint16_t nbdflags, bool shared,
void (*close)(NBDExport *), bool writethrough,
BlockBackend *on_eject_blk, Error **errp)
{
@@ -1487,6 +1487,8 @@ NBDExport *nbd_export_new(BlockDriverState *bs, uint64_t dev_offset,
perm = BLK_PERM_CONSISTENT_READ;
if ((nbdflags & NBD_FLAG_READ_ONLY) == 0) {
perm |= BLK_PERM_WRITE;
+ } else if (shared) {
+ nbdflags |= NBD_FLAG_CAN_MULTI_CONN;
}
blk = blk_new(bdrv_get_aio_context(bs), perm,
BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE_UNCHANGED |