Re: 2.5.1-pre2 does not compile

From: Andre Hedrick (andre@linuxdiskcert.org)
Date: Tue Nov 27 2001 - 19:40:44 EST


Given that block is in the transition period, would you consider a
schedule of when you are taking patchs ?

Regard,

Andre Hedrick
Linux Disk Certification Project Linux ATA Development

On Tue, 27 Nov 2001, Linus Torvalds wrote:

> In article <200111272044.fARKiTv13653@db0bm.ampr.org>,
> f5ibh <f5ibh@db0bm.ampr.org> wrote:
> >
> >I've the following error :
>
> Yes.
>
> The next-generation block-layer support is starting to be merged into
> the 2.5.x tree, and that breaks old drivers that haven't been updated to
> the new locking.
>
> In particular, there used to be _one_ lock for the whole IO system
> ("io_request_lock"), and these days it's a per-block-queue lock.
>
> In many cases the fix is as simple as just replacing the
> "io_request_lock" with "host->host_lock", but sometimes this is
> complicated by the need to pass the right data structures down far
> enough..
>
> Many drivers have been converted (ie IDE, symbios, aic7xxx etc), but
> many more have not (especially older SCSI drivers, in your case it's the
> classic aha1542).
>
> It will probably take some time until most drivers have been converted.
> Tested patches are more than welcome,
>
> Linus
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