Re: resize_ffs isn't resizing

[Michael van Elst]

net...@precedence.co.uk (Stephen Borrill) writes:

>> If you are sure that the filesystem was still read-only, I could
>> imagine that there is an issue with cache flushing of the virtual
>> disk. Maybe doing a 'dkctl xbd0 synccache' makes a difference.

>dkctl: /dev/rxbd0: synccache: Operation not supported


Seems to be something that the Dom0 (or hypervisor?) needs to
support:

        err = xenbus_read_ul(NULL, sc->sc_xbusd->xbusd_otherend,
            "feature-flush-cache", &val, 10);
        if (err)
                val = 0;
        if (val > 0)
                sc->sc_features |= BLKIF_FEATURE_CACHE_FLUSH;