Il 12/09/2012 23:28, Mark Trumpold ha scritto: > So, I've been experimenting with 'qemu-nbd --cache=writeback ..' > This nicely eliminates the 'checkpoint' issue; however, I have as > yet been unable to explicitely flush things to disk -- which I would like to > do just before a 'nilfs' snapshot.
The Linux kernel driver for NBD does not support flushes. Patches were sent to the maintainer, but he never applied them. You can get them at http://thread.gmane.org/gmane.linux.drivers.nbd.general/1108 and try them. > Subsequently I've been trying to call 'bdrv_co_flush(bs)' directly, but I > can't figure out how to dereference 'bs' for the call. > > I'm probably out in the weeds on this one. > Any guidance would be greatly appreciated. > > I am running: > qemu-1.2.0 > linux kernel 3.3.1 > > Thank you, > Mark Trumpold > > > Confidentiality Notice: The information contained in this electronic > e-mail and any accompanying attachment(s) is intended only for the use > of the intended recipient and is confidential and/or privileged. I doubt so, since this is a public mailing list. Paolo
