[libvirt] [PATCH] security driver: ignore EINVAL when chowning an image file
Eric Blake
eblake at redhat.com
Fri Jun 3 16:13:28 UTC 2011
On 06/03/2011 10:04 AM, Laine Stump wrote:
> This fixes:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=702044
> https://bugzilla.redhat.com/show_bug.cgi?id=709454
>
> Both of these complain of a failure to use an image file that resides
> on a read-only NFS volume. The function in the DAC security driver
> that chowns image files to the qemu user:group before using them
> already has special cases to ignore failure of chown on read-only file
> systems, and in a few other cases, but it hadn't been checking for
> EINVAL, which is what is returned if the qemu user doesn't even exist
> on the NFS server.
ACK.
> - if (chown_errno == EOPNOTSUPP) {
> + if (chown_errno == EOPNOTSUPP || chown_errno == EINVAL) {
> VIR_INFO("Setting user and group to '%d:%d' on '%s' not supported by filesystem",
--
Eric Blake eblake at redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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