From: "Daniel P. Berrange" <berra...@redhat.com> The Linux guest kernel does not appear to have a problem handling a mount_tag larger than 32 bytes. Increase the limit to 255 bytes, though perhaps it can be made larger still, or not limited at all ?
Tested with a 3.0.4 kernel and a mount_tag 255 bytes in length. * hw/9pfs/virtio-9p.h: Change MAX_TAG_LEN to 255 Signed-off-by: Daniel P. Berrange <berra...@redhat.com> --- hw/9pfs/virtio-9p.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/hw/9pfs/virtio-9p.h b/hw/9pfs/virtio-9p.h index 17d44b4..b133b33 100644 --- a/hw/9pfs/virtio-9p.h +++ b/hw/9pfs/virtio-9p.h @@ -144,7 +144,7 @@ struct V9fsPDU /* The ID for virtio console */ #define VIRTIO_ID_9P 9 #define MAX_REQ 128 -#define MAX_TAG_LEN 32 +#define MAX_TAG_LEN 255 #define BUG_ON(cond) assert(!(cond)) -- 1.7.6.2
