Messages in this thread | | | Date | Wed, 23 Apr 2003 16:20:41 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] 2.5.67-ac2 direct-IO for IDE taskfile ioctl (0/4) |
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Andries Brouwer <aebr@win.tue.nl> wrote: > > On Wed, Apr 23, 2003 at 03:35:00PM -0700, Andrew Morton wrote: > > > What is special about the IDE ioctl approach? > > Usually one wants to use the standard commands for I/O. > But if the purpose is to talk to the drive (set password, > set native max, eject, change ZIP drive from big floppy > mode to removable disk mode, etc. etc.) then one needs > a means to execute IDE commands "by hand".
Yes, but none of these are performance-critical and they don't involve large amnounts of data. A copy is OK.
If all the rework against bio_map_user() and friends is needed for other reasons then fine. But it doesn't seem to be needed for the IDE taskfile ioctl.
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