David, Is it as simple as stick a mutex at the top of the __fscache_check_consistency function before we try to find the object? This code should be called from a context that can sleep, in the Ceph code we call it from a delayed work queue (revalidate queue). -- Milosz On Wed, Sep 4, 2013 at 1:26 PM, David Howells <dhowells@xxxxxxxxxx> wrote: > Milosz Tanski <milosz@xxxxxxxxx> wrote: > >> If the cache is withdrawn and we're starting anew I would consider >> that to okay. I would consider an empty page cache for a cookie to be >> consistent since there's nothing stale that I can read. Unless there's >> another synchronization issue that I'm missing in fscache. > > The problem is that the fscache_object struct may be deallocated whilst you're > using it. > > David -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
