Hello, On Tue, Sep 11, 2012 at 10:25:01AM +0200, Lars Ellenberg wrote: > Or do we have a better place to document write ordering requirements? > > "To enforce write-after-write dependencies, you *have* to drain the > queue (do we have a generic interface available for that?), > or at least wait for the completion of all the requests you > (potentially) depend upon, before even submitting the dependent request. > > Additionally, to avoid integrity issues due to volatile caches, > you need to use FLUSH/FUA as appropriate."
I think it would be best to note the lack of any ordering guarantee in the comment of bio_submit()? Any one interested in submitting a patch? Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
