On Monday 28 January 2008, Borislav Petkov wrote: > Hi Bart, > > [...] > > > > the BKL in idetape_write_release() with finer-grained locking etc, probably also > > > some pipeline improvements, removal of OnStream support, etc. but that'll come > > > later. > > > > On-Stream support has been long gone but it seems that deprecation > > warning etc. managed to survive. > > > > w.r.t. to the pipeline-mode: it should be pipelined into /dev/null > > > > rationale: > > - it is _very_ complex > > - causes errors to be deferred till the next user-space access > > - direct I/O using blk_rq_map_user() will offer superior performance > > > > the only question is whether to remove it... > > Well, on the one hand, since the driver is only being maintained we should not > remove code that works. Also, i don't know how many users ide-tape really has > but, would it be worth the trouble at all? Because if nobody's using it, we > could just as well pipe the whole thing into /dev/null.. On the other hand, the This may be the other alternative... [ there is always libata PATA... ] If you want to give ide-tape removal a try, go ahead (I suggest starting with adding warning printk() and keeping patch in -mm for some time)... > pipelining part _is_ kinda big and, right, it is not that straightfoward to > look at it and know what it actually does - it truly is a student project :) I have pipelining code figured out to some degree but reworking it is a rather low-prio on my TODO list... [...] > Anyway, resending #23 to you in a private mail. Thanks. Bart - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
