[libvirt] [PATCH] Extra filesystem options during backend filesystem mount.

Daniel P. Berrange berrange at redhat.com
Thu Jul 16 14:16:07 UTC 2009


On Thu, Jul 16, 2009 at 06:06:25AM -0700, Harshavardhana wrote:
> New option index added to support -o options for various netfs. 
> Currently added an option for glusterfs. 

What effect does it have  ? Or why do we want/need it

> @@ -670,6 +692,12 @@ virStorageBackendFileSystemMount(virConnectPtr conn,
>      }
>  
>      if (pool->def->type == VIR_STORAGE_POOL_NETFS) {
> +        if (pool->def->source.format = VIR_STORAGE_POOL_NETFS_GLUSTERFS) {
> +            if (virAsprintf(&options, "direct-io-mode=1") == -1) {
> +                virReportOOMError(conn);
> +                return -1;
> +            }
> +        }

Normally direct-IO mode is something you'd let apps set on a per file
basis as they desire. QEMU / Xen both know todo this, so I'm not
convinced we should force it on for the whole mount point.

Regards,
Daniel
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