Re: [libvirt] [PATCH v5 1/5] Introduce virDomainFSFreeze() and virDomainFSThaw() public API

On Thu, Apr 03, 2014 at 11:39:29AM -0400, Tomoki Sekiyama wrote: > These will freeze and thaw filesystems within guest. The APIs take @disks > and @ndisks parameters to specify disks to be frozen or thawed. > The parameters can be NULL and 0, then the all mounted filesystes are > frozen or thawed. If some disks are frozen multiple times, they are not > thawed until requested to be thawed as many times as freeze request. > @flags parameter, which are currently not used, is for future extensions. >

> +int virDomainFSThaw(virDomainPtr dom, > + const char **disks, > + unsigned int ndisks, > + unsigned int flags); Are all guests OS required to support unfreeze on a per disk basis. I vaguely recall someone mentioning that some OS can do all-or-none only.