Trond Myklebust <trondmy@xxxxxxxxxxxxxxx> wrote: > To elaborate a bit: we used to have code here that would check whether > the page had been cleaned but was unstable, and if an argument of > GFP_KERNEL or above was set, we'd try to call COMMIT to ensure the page > was synched to disk on the server (and we'd wait for that call to > complete). > > That code would end up deadlocking in all sorts of horrible ways, so we > ended up having to pull it. I don't think that a deadlock should be possible with this. PG_fscache is now only being used to indicate that a DIO write to the cache is in progress on the page. It will complete and remove the mark at some point. David
