From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:53102) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R9Dwo-0001Q8-HQ for qemu-devel@nongnu.org; Thu, 29 Sep 2011 06:34:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1R9Dwm-0002qm-Ub for qemu-devel@nongnu.org; Thu, 29 Sep 2011 06:34:34 -0400 Received: from mx1.redhat.com ([209.132.183.28]:65494) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R9Dwm-0002qc-2w for qemu-devel@nongnu.org; Thu, 29 Sep 2011 06:34:32 -0400 From: "Daniel P. Berrange" Date: Thu, 29 Sep 2011 11:34:21 +0100 Message-Id: <1317292461-12291-1-git-send-email-berrange@redhat.com> Subject: [Qemu-devel] [PATCH] Raise 9pfs mount_tag limit from 32 to 255 bytes List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Harsh Bora , "Aneesh Kumar K. V" From: "Daniel P. Berrange" 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 --- 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