Messages in this thread | | | From | Bartlomiej Zolnierkiewicz <> | Subject | Re: [GIT]: IDE | Date | Mon, 9 Nov 2009 11:35:08 +0100 |
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On Monday 09 November 2009 06:30:55 David Miller wrote: > > The revert we thought we didn't need, we really do need still, even > with Bart Z.'s fix. > > The issue is that we are doing these PIO setting calls before we did > the device probe and therefore we don't yet know the media type. > > Yet the ->set_pio_mode() of some drivers key off of the media type to > determine whether to turn prefetching etc. on so it can't possibly > work properly.
Thanks for quick reaction to the revert request.
If somebody is interested in the proper way to fix it you just need to add ide_unknown media type and set it before probe instead of ide_disk one. Then audit ->set_pio_mode implementations for potential gotchas.
[ However it is too late for -rc and nobody is currently working on IDE fixes anyway so I just requested the revert . ]
-- Bartlomiej Zolnierkiewicz
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